Was bedeutet 51-%-Attacke? BTC-ACADEMY

I think I understand a 51 percent attack, but also would love a neat and concise answer. Please help!

submitted by jeremyisreal1 to BitcoinBeginners [link] [comments]

Putting $400M of Bitcoin on your company balance sheet

Also posted on my blog as usual. Read it there if you can, there are footnotes and inlined plots.
A couple of months ago, MicroStrategy (MSTR) had a spare $400M of cash which it decided to shift to Bitcoin (BTC).
Today we'll discuss in excrutiating detail why this is not a good idea.
When a company has a pile of spare money it doesn't know what to do with, it'll normally do buybacks or start paying dividends. That gives the money back to the shareholders, and from an economic perspective the money can get better invested in other more promising companies. If you have a huge pile of of cash, you probably should be doing other things than leave it in a bank account to gather dust.
However, this statement from MicroStrategy CEO Michael Saylor exists to make it clear he's buying into BTC for all the wrong reasons:
“This is not a speculation, nor is it a hedge. This was a deliberate corporate strategy to adopt a bitcoin standard.”
Let's unpack it and jump into the economics Bitcoin:

Is Bitcoin money?

No.
Or rather BTC doesn't act as money and there's no serious future path for BTC to become a form of money. Let's go back to basics. There are 3 main economic problems money solves:
1. Medium of Exchange. Before money we had to barter, which led to the double coincidence of wants problem. When everyone accepts the same money you can buy something from someone even if they don't like the stuff you own.
As a medium of exchange, BTC is not good. There are significant transaction fees and transaction waiting times built-in to BTC and these worsen the more popular BTC get.
You can test BTC's usefulness as a medium of exchange for yourself right now: try to order a pizza or to buy a random item with BTC. How many additional hurdles do you have to go through? How many fewer options do you have than if you used a regular currency? How much overhead (time, fees) is there?
2. Unit of Account. A unit of account is what you compare the value of objects against. We denominate BTC in terms of how many USD they're worth, so BTC is a unit of account presently. We can say it's because of lack of adoption, but really it's also because the market value of BTC is so volatile.
If I buy a $1000 table today or in 2017, it's roughly a $1000 table. We can't say that a 0.4BTC table was a 0.4BTC table in 2017. We'll expand on this in the next point:
3. Store of Value. When you create economic value, you don't want to be forced to use up the value you created right away.
For instance, if I fix your washing machine and you pay me in avocados, I'd be annoyed. I'd have to consume my payment before it becomes brown, squishy and disgusting. Avocado fruit is not good money because avocadoes loses value very fast.
On the other hand, well-run currencies like the USD, GBP, CAD, EUR, etc. all lose their value at a low and most importantly fairly predictible rate. Let's look at the chart of the USD against BTC
While the dollar loses value at a predictible rate, BTC is all over the place, which is bad.
One important use money is to write loan contracts. Loans are great. They let people spend now against their future potential earnings, so they can buy houses or start businesses without first saving up for a decade. Loans are good for the economy.
If you want to sign something that says "I owe you this much for that much time" then you need to be able to roughly predict the value of the debt in at the point in time where it's due.
Otherwise you'll have a hard time pricing the risk of the loan effectively. This means that you need to charge higher interests. The risk of making a loan in BTC needs to be priced into the interest of a BTC-denominated loan, which means much higher interest rates. High interests on loans are bad, because buying houses and starting businesses are good things.

BTC has a fixed supply, so these problems are built in

Some people think that going back to a standard where our money was denominated by a stock of gold (the Gold Standard) would solve economic problems. This is nonsense.
Having control over supply of your currency is a good thing, as long as it's well run.
See here
Remember that what is desirable is low variance in the value, not the value itself. When there are wild fluctuations in value, it's hard for money to do its job well.
Since the 1970s, the USD has been a fiat money with no intrinsic value. This means we control the supply of money.
Let's look at a classic poorly drawn econ101 graph
The market price for USD is where supply meets demand. The problem with a currency based on an item whose supply is fixed is that the price will necessarily fluctuate in response to changes in demand.
Imagine, if you will, that a pandemic strikes and that the demand for currency takes a sharp drop. The US imports less, people don't buy anything anymore, etc. If you can't print money, you get deflation, which is worsens everything. On the other hand, if you can make the money printers go brrrr you can stabilize the price
Having your currency be based on a fixed supply isn't just bad because in/deflation is hard to control.
It's also a national security risk...
The story of the guy who crashed gold prices in North Africa
In the 1200s, Mansa Munsa, the emperor of the Mali, was rich and a devout Muslim and wanted everyone to know it. So he embarked on a pilgrimage to make it rain all the way to Mecca.
He in fact made it rain so hard he increased the overall supply of gold and unintentionally crashed gold prices in Cairo by 20%, wreaking an economic havoc in North Africa that lasted a decade.
This story is fun, the larger point that having your inflation be at the mercy of foreign nations is an undesirable attribute in any currency. The US likes to call some countries currency manipulators, but this problem would be serious under a gold standard.

Currencies are based on trust

Since the USD is based on nothing except the US government's word, how can we trust USD not to be mismanaged?
The answer is that you can probably trust the fed until political stooges get put in place. Currently, the US's central bank managing the USD, the Federal Reserve (the Fed for friends & family), has administrative authority. The fed can say "no" to dumb requests from the president.
People who have no idea what the fed does like to chant "audit the fed", but the fed is already one of the best audited US federal entities. The transcripts of all their meetings are out in the open. As is their balance sheet, what they plan to do and why. If the US should audit anything it's the Department of Defense which operates without any accounting at all.
It's easy to see when a central bank will go rogue: it's when political yes-men are elected to the board.
For example, before printing themselves into hyperinflation, the Venezuelan president appointed a sociologist who publicly stated “Inflation does not exist in real life” and instead is a made up capitalist lie. Note what happened mere months after his gaining control over the Venezuelan currency
This is a key policy. One paper I really like, Sargent (1984) "The end of 4 big inflations" states:
The essential measures that ended hyperinflation in each of Germany,Austria, Hungary, and Poland were, first, the creation of an independentcentral bank that was legally committed to refuse the government'sdemand or additional unsecured credit and, second, a simultaneousalteration in the fiscal policy regime.
In english: *hyperinflation stops when the central bank can say "no" to the government."
The US Fed, like other well good central banks, is run by a bunch of nerds. When it prints money, even as aggressively as it has it does so for good reasons. You can see why they started printing on March 15th as the COVID lockdowns started:
The Federal Reserve is prepared to use its full range of tools to support the flow of credit to households and businesses and thereby promote its maximum employment and price stability goals.
In english: We're going to keep printing and lowering rates until jobs are back and inflation is under control. If we print until the sun is blotted out, we'll print in the shade.

BTC is not gold

Gold is a good asset for doomsday-preppers. If society crashes, gold will still have value.
How do we know that?
Gold has held value throughout multiple historic catastrophes over thousands of years. It had value before and after the Bronze Age Collapse, the Fall of the Western Roman Empire and Gengis Khan being Gengis Khan.
Even if you erased humanity and started over, the new humans would still find gold to be economically valuable. When Europeans d̶i̶s̶c̶o̶v̶e̶r̶e̶d̶ c̶o̶n̶q̶u̶e̶r̶e̶d̶ g̶e̶n̶o̶c̶i̶d̶e̶d̶ went to America, they found gold to be an important item over there too. This is about equivalent to finding humans on Alpha-Centauri and learning that they think gold is a good store of value as well.
Some people are puzzled at this: we don't even use gold for much! But it has great properties:
First, gold is hard to fake and impossible to manufacture. This makes it good to ascertain payment.
Second, gold doesnt react to oxygen, so it doesn't rust or tarnish. So it keeps value over time unlike most other materials.
Last, gold is pretty. This might sound frivolous, and you may not like it, but jewelry has actual value to humans.
It's no coincidence if you look at a list of the wealthiest families, a large number of them trade in luxury goods.
To paraphrase Veblen humans have a profound desire to signal social status, for the same reason peacocks have unwieldy tails. Gold is a great way to achieve that.
On the other hand, BTC lacks all these attributes. Its value is largely based on common perception of value. There are a few fundamental drivers of demand:
Apart from these, it's hard to argue that BTC will retain value throughout some sort of economic catastrophe.

BTC is really risky

One last statement from Michael Saylor I take offense to is this:
“We feel pretty confident that Bitcoin is less risky than holding cash, less risky than holding gold,” MicroStrategy CEO said in an interview
"BTC is less risky than holding cash or gold long term" is nonsense. We saw before that BTC is more volatile on face value, and that as long as the Fed isn't run by spider monkeys stacked in a trench coat, the inflation is likely to be within reasonable bounds.
But on top of this, BTC has Abrupt downside risks that normal currencies don't. Let's imagine a few:

Blockchain solutions are fundamentally inefficient

Blockchain was a genius idea. I still marvel at the initial white paper which is a great mix of economics and computer science.
That said, blockchain solutions make large tradeoffs in design because they assume almost no trust between parties. This leads to intentionally wasteful designs on a massive scale.
The main problem is that all transactions have to be validated by expensive computational operations and double checked by multiple parties. This means waste:
Many design problems can be mitigated by various improvements over BTC, but it remains that a simple database always works better than a blockchain if you can trust the parties to the transaction.
submitted by VodkaHaze to badeconomics [link] [comments]

Ultimate glossary of crypto currency terms, acronyms and abbreviations

I thought it would be really cool to have an ultimate guide for those new to crypto currencies and the terms used. I made this mostly for beginner’s and veterans alike. I’m not sure how much use you will get out of this. Stuff gets lost on Reddit quite easily so I hope this finds its way to you. Included in this list, I have included most of the terms used in crypto-communities. I have compiled this list from a multitude of sources. The list is in alphabetical order and may include some words/terms not exclusive to the crypto world but may be helpful regardless.
2FA
Two factor authentication. I highly advise that you use it.
51% Attack:
A situation where a single malicious individual or group gains control of more than half of a cryptocurrency network’s computing power. Theoretically, it could allow perpetrators to manipulate the system and spend the same coin multiple times, stop other users from completing blocks and make conflicting transactions to a chain that could harm the network.
Address (or Addy):
A unique string of numbers and letters (both upper and lower case) used to send, receive or store cryptocurrency on the network. It is also the public key in a pair of keys needed to sign a digital transaction. Addresses can be shared publicly as a text or in the form of a scannable QR code. They differ between cryptocurrencies. You can’t send Bitcoin to an Ethereum address, for example.
Altcoin (alternative coin): Any digital currency other than Bitcoin. These other currencies are alternatives to Bitcoin regarding features and functionalities (e.g. faster confirmation time, lower price, improved mining algorithm, higher total coin supply). There are hundreds of altcoins, including Ether, Ripple, Litecoin and many many others.
AIRDROP:
An event where the investors/participants are able to receive free tokens or coins into their digital wallet.
AML: Defines Anti-Money Laundering laws**.**
ARBITRAGE:
Getting risk-free profits by trading (simultaneous buying and selling of the cryptocurrency) on two different exchanges which have different prices for the same asset.
Ashdraked:
Being Ashdraked is essentially a more detailed version of being Zhoutonged. It is when you lose all of your invested capital, but you do so specifically by shorting Bitcoin. The expression “Ashdraked” comes from a story of a Romanian cryptocurrency investor who insisted upon shorting BTC, as he had done so successfully in the past. When the price of BTC rose from USD 300 to USD 500, the Romanian investor lost all of his money.
ATH (All Time High):
The highest price ever achieved by a cryptocurrency in its entire history. Alternatively, ATL is all time low
Bearish:
A tendency of prices to fall; a pessimistic expectation that the value of a coin is going to drop.
Bear trap:
A manipulation of a stock or commodity by investors.
Bitcoin:
The very first, and the highest ever valued, mass-market open source and decentralized cryptocurrency and digital payment system that runs on a worldwide peer to peer network. It operates independently of any centralized authorities
Bitconnect:
One of the biggest scams in the crypto world. it was made popular in the meme world by screaming idiot Carlos Matos, who infamously proclaimed," hey hey heeeey” and “what's a what's a what's up wasssssssssuuuuuuuuuuuuup, BitConneeeeeeeeeeeeeeeeeeeeeeeect!”. He is now in the mentally ill meme hall of fame.
Block:
A package of permanently recorded data about transactions occurring every time period (typically about 10 minutes) on the blockchain network. Once a record has been completed and verified, it goes into a blockchain and gives way to the next block. Each block also contains a complex mathematical puzzle with a unique answer, without which new blocks can’t be added to the chain.
Blockchain:
An unchangeable digital record of all transactions ever made in a particular cryptocurrency and shared across thousands of computers worldwide. It has no central authority governing it. Records, or blocks, are chained to each other using a cryptographic signature. They are stored publicly and chronologically, from the genesis block to the latest block, hence the term blockchain. Anyone can have access to the database and yet it remains incredibly difficult to hack.
Bullish:
A tendency of prices to rise; an optimistic expectation that a specific cryptocurrency will do well and its value is going to increase.
BTFD:
Buy the fucking dip. This advise was bestowed upon us by the gods themselves. It is the iron code to crypto enthusiasts.
Bull market:
A market that Cryptos are going up.
Consensus:
An agreement among blockchain participants on the validity of data. Consensus is reached when the majority of nodes on the network verify that the transaction is 100% valid.
Crypto bubble:
The instability of cryptocurrencies in terms of price value
Cryptocurrency:
A type of digital currency, secured by strong computer code (cryptography), that operates independently of any middlemen or central authoritie
Cryptography:
The art of converting sensitive data into a format unreadable for unauthorized users, which when decoded would result in a meaningful statement.
Cryptojacking:
The use of someone else’s device and profiting from its computational power to mine cryptocurrency without their knowledge and consent.
Crypto-Valhalla:
When HODLers(holders) eventually cash out they go to a place called crypto-Valhalla. The strong will be separated from the weak and the strong will then be given lambos.
DAO:
Decentralized Autonomous Organizations. It defines A blockchain technology inspired organization or corporation that exists and operates without human intervention.
Dapp (decentralized application):
An open-source application that runs and stores its data on a blockchain network (instead of a central server) to prevent a single failure point. This software is not controlled by the single body – information comes from people providing other people with data or computing power.
Decentralized:
A system with no fundamental control authority that governs the network. Instead, it is jointly managed by all users to the system.
Desktop wallet:
A wallet that stores the private keys on your computer, which allow the spending and management of your bitcoins.
DILDO:
Long red or green candles. This is a crypto signal that tells you that it is not favorable to trade at the moment. Found on candlestick charts.
Digital Signature:
An encrypted digital code attached to an electronic document to prove that the sender is who they say they are and confirm that a transaction is valid and should be accepted by the network.
Double Spending:
An attack on the blockchain where a malicious user manipulates the network by sending digital money to two different recipients at exactly the same time.
DYOR:
Means do your own research.
Encryption:
Converting data into code to protect it from unauthorized access, so that only the intended recipient(s) can decode it.
Eskrow:
the practice of having a third party act as an intermediary in a transaction. This third party holds the funds on and sends them off when the transaction is completed.
Ethereum:
Ethereum is an open source, public, blockchain-based platform that runs smart contracts and allows you to build dapps on it. Ethereum is fueled by the cryptocurrency Ether.
Exchange:
A platform (centralized or decentralized) for exchanging (trading) different forms of cryptocurrencies. These exchanges allow you to exchange cryptos for local currency. Some popular exchanges are Coinbase, Bittrex, Kraken and more.
Faucet:
A website which gives away free cryptocurrencies.
Fiat money:
Fiat currency is legal tender whose value is backed by the government that issued it, such as the US dollar or UK pound.
Fork:
A split in the blockchain, resulting in two separate branches, an original and a new alternate version of the cryptocurrency. As a single blockchain forks into two, they will both run simultaneously on different parts of the network. For example, Bitcoin Cash is a Bitcoin fork.
FOMO:
Fear of missing out.
Frictionless:
A system is frictionless when there are zero transaction costs or trading retraints.
FUD:
Fear, Uncertainty and Doubt regarding the crypto market.
Gas:
A fee paid to run transactions, dapps and smart contracts on Ethereum.
Halving:
A 50% decrease in block reward after the mining of a pre-specified number of blocks. Every 4 years, the “reward” for successfully mining a block of bitcoin is reduced by half. This is referred to as “Halving”.
Hardware wallet:
Physical wallet devices that can securely store cryptocurrency maximally. Some examples are Ledger Nano S**,** Digital Bitbox and more**.**
Hash:
The process that takes input data of varying sizes, performs an operation on it and converts it into a fixed size output. It cannot be reversed.
Hashing:
The process by which you mine bitcoin or similar cryptocurrency, by trying to solve the mathematical problem within it, using cryptographic hash functions.
HODL:
A Bitcoin enthusiast once accidentally misspelled the word HOLD and it is now part of the bitcoin legend. It can also mean hold on for dear life.
ICO (Initial Coin Offering):
A blockchain-based fundraising mechanism, or a public crowd sale of a new digital coin, used to raise capital from supporters for an early stage crypto venture. Beware of these as there have been quite a few scams in the past.
John mcAfee:
A man who will one day eat his balls on live television for falsely predicting bitcoin going to 100k. He has also become a small meme within the crypto community for his outlandish claims.
JOMO:
Joy of missing out. For those who are so depressed about missing out their sadness becomes joy.
KYC:
Know your customer(alternatively consumer).
Lambo:
This stands for Lamborghini. A small meme within the investing community where the moment someone gets rich they spend their earnings on a lambo. One day we will all have lambos in crypto-valhalla.
Ledger:
Away from Blockchain, it is a book of financial transactions and balances. In the world of crypto, the blockchain functions as a ledger. A digital currency’s ledger records all transactions which took place on a certain block chain network.
Leverage:
Trading with borrowed capital (margin) in order to increase the potential return of an investment.
Liquidity:
The availability of an asset to be bought and sold easily, without affecting its market price.
of the coins.
Margin trading:
The trading of assets or securities bought with borrowed money.
Market cap/MCAP:
A short-term for Market Capitalization. Market Capitalization refers to the market value of a particular cryptocurrency. It is computed by multiplying the Price of an individual unit of coins by the total circulating supply.
Miner:
A computer participating in any cryptocurrency network performing proof of work. This is usually done to receive block rewards.
Mining:
The act of solving a complex math equation to validate a blockchain transaction using computer processing power and specialized hardware.
Mining contract:
A method of investing in bitcoin mining hardware, allowing anyone to rent out a pre-specified amount of hashing power, for an agreed amount of time. The mining service takes care of hardware maintenance, hosting and electricity costs, making it simpler for investors.
Mining rig:
A computer specially designed for mining cryptocurrencies.
Mooning:
A situation the price of a coin rapidly increases in value. Can also be used as: “I hope bitcoin goes to the moon”
Node:
Any computing device that connects to the blockchain network.
Open source:
The practice of sharing the source code for a piece of computer software, allowing it to be distributed and altered by anyone.
OTC:
Over the counter. Trading is done directly between parties.
P2P (Peer to Peer):
A type of network connection where participants interact directly with each other rather than through a centralized third party. The system allows the exchange of resources from A to B, without having to go through a separate server.
Paper wallet:
A form of “cold storage” where the private keys are printed onto a piece of paper and stored offline. Considered as one of the safest crypto wallets, the truth is that it majors in sweeping coins from your wallets.
Pre mining:
The mining of a cryptocurrency by its developers before it is released to the public.
Proof of stake (POS):
A consensus distribution algorithm which essentially rewards you based upon the amount of the coin that you own. In other words, more investment in the coin will leads to more gain when you mine with this protocol In Proof of Stake, the resource held by the “miner” is their stake in the currency.
PROOF OF WORK (POW) :
The competition of computers competing to solve a tough crypto math problem. The first computer that does this is allowed to create new blocks and record information.” The miner is then usually rewarded via transaction fees.
Protocol:
A standardized set of rules for formatting and processing data.
Public key / private key:
A cryptographic code that allows a user to receive cryptocurrencies into an account. The public key is made available to everyone via a publicly accessible directory, and the private key remains confidential to its respective owner. Because the key pair is mathematically related, whatever is encrypted with a public key may only be decrypted by its corresponding private key.
Pump and dump:
Massive buying and selling activity of cryptocurrencies (sometimes organized and to one’s benefit) which essentially result in a phenomenon where the significant surge in the value of coin followed by a huge crash take place in a short time frame.
Recovery phrase:
A set of phrases you are given whereby you can regain or access your wallet should you lose the private key to your wallets — paper, mobile, desktop, and hardware wallet. These phrases are some random 12–24 words. A recovery Phrase can also be called as Recovery seed, Seed Key, Recovery Key, or Seed Phrase.
REKT:
Referring to the word “wrecked”. It defines a situation whereby an investor or trader who has been ruined utterly following the massive losses suffered in crypto industry.
Ripple:
An alternative payment network to Bitcoin based on similar cryptography. The ripple network uses XRP as currency and is capable of sending any asset type.
ROI:
Return on investment.
Safu:
A crypto term for safe popularized by the Bizonnaci YouTube channel after the CEO of Binance tweeted
“Funds are safe."
“the exchage I use got hacked!”“Oh no, are your funds safu?”
“My coins better be safu!”


Sats/Satoshi:
The smallest fraction of a bitcoin is called a “satoshi” or “sat”. It represents one hundred-millionth of a bitcoin and is named after Satoshi Nakamoto.
Satoshi Nakamoto:
This was the pseudonym for the mysterious creator of Bitcoin.
Scalability:
The ability of a cryptocurrency to contain the massive use of its Blockchain.
Sharding:
A scaling solution for the Blockchain. It is generally a method that allows nodes to have partial copies of the complete blockchain in order to increase overall network performance and consensus speeds.
Shitcoin:
Coin with little potential or future prospects.
Shill:
Spreading buzz by heavily promoting a particular coin in the community to create awareness.
Short position:
Selling of a specific cryptocurrency with an expectation that it will drop in value.
Silk road:
The online marketplace where drugs and other illicit items were traded for Bitcoin. This marketplace is using accessed through “TOR”, and VPNs. In October 2013, a Silk Road was shut down in by the FBI.
Smart Contract:
Certain computational benchmarks or barriers that have to be met in turn for money or data to be deposited or even be used to verify things such as land rights.
Software Wallet:
A crypto wallet that exists purely as software files on a computer. Usually, software wallets can be generated for free from a variety of sources.
Solidity:
A contract-oriented coding language for implementing smart contracts on Ethereum. Its syntax is similar to that of JavaScript.
Stable coin:
A cryptocoin with an extremely low volatility that can be used to trade against the overall market.
Staking:
Staking is the process of actively participating in transaction validation (similar to mining) on a proof-of-stake (PoS) blockchain. On these blockchains, anyone with a minimum-required balance of a specific cryptocurrency can validate transactions and earn Staking rewards.
Surge:
When a crypto currency appreciates or goes up in price.
Tank:
The opposite of mooning. When a coin tanks it can also be described as crashing.
Tendies
For traders , the chief prize is “tendies” (chicken tenders, the treat an overgrown man-child receives for being a “Good Boy”) .
Token:
A unit of value that represents a digital asset built on a blockchain system. A token is usually considered as a “coin” of a cryptocurrency, but it really has a wider functionality.
TOR: “The Onion Router” is a free web browser designed to protect users’ anonymity and resist censorship. Tor is usually used surfing the web anonymously and access sites on the “Darkweb”.
Transaction fee:
An amount of money users are charged from their transaction when sending cryptocurrencies.
Volatility:
A measure of fluctuations in the price of a financial instrument over time. High volatility in bitcoin is seen as risky since its shifting value discourages people from spending or accepting it.
Wallet:
A file that stores all your private keys and communicates with the blockchain to perform transactions. It allows you to send and receive bitcoins securely as well as view your balance and transaction history.
Whale:
An investor that holds a tremendous amount of cryptocurrency. Their extraordinary large holdings allow them to control prices and manipulate the market.
Whitepaper:

A comprehensive report or guide made to understand an issue or help decision making. It is also seen as a technical write up that most cryptocurrencies provide to take a deep look into the structure and plan of the cryptocurrency/Blockchain project. Satoshi Nakamoto was the first to release a whitepaper on Bitcoin, titled “Bitcoin: A Peer-to-Peer Electronic Cash System” in late 2008.
And with that I finally complete my odyssey. I sincerely hope that this helped you and if you are new, I welcome you to crypto. If you read all of that I hope it increased, you in knowledge.
my final definition:
Crypto-Family:
A collection of all the HODLers and crypto fanatics. A place where all people alike unite over a love for crypto.
We are all in this together as we pioneer the new world that is crypto currency. I wish you a great day and Happy HODLing.
-u/flacciduck
feel free to comment words or terms that you feel should be included or about any errors I made.
Edit1:some fixes were made and added words.
submitted by flacciduck to CryptoCurrency [link] [comments]

China is a threat to bitcoin?

I understand that 51% Attack is very costly and probably won't probably much financial incentive to the one who orchestrates it. I came across this blog post called How China can kill bitcoin and thought that the author does have quite a good point (despite the tone of the blog post). He argued that the top 4 Chinese mining pools alone represent more than 51% of the hashrate and if the Chinese government are to forcibly commandeer these top 4 mining pools (without having to buy new mining equipment) then they can easily orchestrate the 51% attack within an hour and a double-spend would have been successful.
A few questions:
  1. If this all is true, wouldn't you say that China is quite a big threat to the existence of bitcoin? Isn't this something we should be more worried about? (it seems that most of bitcoin community just assumed that no one will attempt the 51% attack and it has been debunked many times). I don't know what could be the incentives for China to do this (cracking down money laundering?) but does the fact that they could do this if they want to concern you?
  2. Will bitcoin mining be more decentralized (esp away from China) in the future? It seems that miners should go wherever there is cheap electricity, why haven't more countries jumped in?
  3. Can anyone comment about Stratum V2? Will it help address the problem by giving the control to miners o select their own transaction sets? When will it be ready?
submitted by stackingsatseveryday to BitcoinBeginners [link] [comments]

About Ethereum mining pitfalls, risks, and threats

Bitcoin miners are massively switching to Ethereum. According to 8btc estimates, the payback period for a Bitcoin miner is 600 days, while for the same metric on Ether it only takes 200 days. But this goodness won’t last forever. Read about what threatens the development of Ethereum below.
Hardware and Filling – Halfway to Success
Experienced folks advise taking the most productive video cards, for example, the latest models from Nvidia and AMD. When choosing, pay attention to the amount of video memory (ideally from 2 GB), memory speed (with DDR 5 memory), bus width (better with a 256-bit bus), and cooling (basically there’s no competition to Radeon devices). Take Radeon RX 570, this 169 USD card produces 24-30 Mh/s, which is superb.
The Illusion of Stability
The entire multi-million community of Ether lovers trembled in early August when the Ethereum Classic network was subjected to several 51% attacks at once. In addition, in the first half of 2020 alone, over 5 attacks were carried out on popular DeFi platforms, including Balancer ($500,000 stolen) and bZx (17,500 ETH were stolen in total). Moreover, cybercriminals do not always use technical vulnerabilities, sometimes good old social engineering works.
Reduction of Reward
Ethereum developers have proposed to reduce the block mining reward by 75%. ConsenSys Managing Director John Leelik published the EIP-2878 proposal aimed at reducing inflation and preserving purchasing power. If supported, the reward will drop to 0.5 ETH.
The transition of ETH to ETH 2.0 (PoS)
We already wrote about this in the article "Problems of Ethereum Mining", and you can also watch the interview by Peter McCormack with the project founder Vitalik Buterin.
While the opportunity is still there, we offer everyone to get the most out of it and mine profitably. For example, take a closer look at the new CoinFLy ETH Pool, that nowadays offers more rewards than others, at least by 10%.
Profit That is Not Profit
A hidden and obvious problem is choosing the pool based on its profitability. If you only have a few capacities, then it is better to choose a pool that uses the PPS+ model, if you’ve got a lot of them, then a powerful pool with PPLNS is better. And if you’ve got so many capacities that there’s even enough for others, then you can also go SOLO, buddy. More details - here.
submitted by applesEgo to ethereum [link] [comments]

Minimum Viable Issuance - Why Ethereum’s lack of a hard cap on ETH issuance is a good thing.

This post will explain how the argument used by the average Bitcoin maximalist, thinking that they have found Ethereum’s achilles heel when talking about issuance is actually highlighting one of Ethereum’s strong points and one of the main threats to the longevity of the Bitcoin network.
So first let’s answer the question which I know many people have about Ethereum:

What is Ethereum’s ETH issuance schedule?

Ethereum has an issuance policy of Minimum Viable Issuance. So what does this mean exactly? It means that the issuance of ETH will be as low as possible while also maintaining a sufficient budget to pay miners (and soon to be stakers) to keep the network secure. For example, if ETH issuance was halved, miners would drop off the network and stop mining as it is no longer profitable for them to mine. As a result, the network would be less secure as it would cost less money for an attacker to control 51% of the hash power and attack the network. This means that the Ethereum community plans to change ETH issuance as time goes on to maintain a reasonable security budget which will keep the network secure but will also keep inflation in check. We have done this twice in the past with EIP-649 and EIP-1234 which reduced block rewards from 5 ETH per block to 3 ETH and from 3 ETH to 2 ETH respectively. I previously made a graph of ETH issuance over time here: https://redd.it/it8ce7
So while Ethereum doesn’t have a strictly defined issuance schedule, the community will reject any proposals which either put the security of the network at risk such as the recent EIP-2878, or we will reject proposals which will lead to excessive network security and therefore an unnecessarily high inflation rate (or we will accept proposals which reduce issuance after price rises and therefore the security budget rises). This means that when Bitcoiners accuse the Ethereum Foundation of being no better than a central bank because they can “print more Ether”, this is completely untrue. Any proposals made by the EF which would increase issuance unnecessarily would be rejected by the community in the same way that a proposal to increase the supply of Bitcoin from 21 million to 22 million would be rejected. There is a social contract around both Bitcoin’s and Ethereum’s issuance schedules. Any networks or proposals which break the social contracts of 21 million Bitcoins and minimal viable issuance of Ether would be a breach of these contracts and the new proposed network would be labeled by the community as illegitimate and the original network would live on.

So why is minimum viable issuance better than a hard cap?

Minimum viable issuance is better than a hard cap because it puts the most important part of the network first - the security. MVI ensures that the Ethereum network will always have a security budget which keeps the cost of a 51% attack impractically high. Bitcoin on the other hand, halves its security budget every 4 years until eventually only the transaction fees pay for network security. This means that every 4 years, the amount of money paying for network security halves until eventually, the value of attacking the network becomes greater than the security budget and someone performs a 51% attack (technically the security budget only halves if terms of BTC not in dollars. However, even if the price of Bitcoin more than doubles in the time that the security budget halves, the ratio of security budget to value secured on the network still halves, doubling the financial viability of performing a network attack). The strategy to pay for the security budget once Bitcoin issuance stops is for transaction fees to secure the network since transaction fees are paid to miners. Not only does this have its own security problems which I won’t detail here, but unless Bitcoin scales on layer 1 (layer 2 scaling solutions have their own security mechanisms separate from L1), then fees would have to cost well in the thousands of dollars to secure a trillion dollar market cap Bitcoin that is secured by nothing but fees. If Bitcoin maximalists want a 10 trillion or 100 trillion dollar market cap then expect fees to go up another 10 or 100 times from there.
Ethereum on the other hand, will be able to keep its network secure with approximately 1-2% annual issuance being paid to stakers under ETH 2.0. This is because not all of the network will be staking, so if 33 million of the approximately 110 million Ether in existence stakes under ETH 2.0, then paying this 33 million Ether 6% a year (a very decent yield!) would cost just under 2 million ETH per year which would equate to less than 2% annual ETH inflation. This is also before considering EIP-1559 which will burn a portion of transaction fees which will counter the effect of this inflation and potentially even make ETH deflationary if the sum of all burned transaction fees are greater than the annual inflation. Also, under ETH 2.0, an attacker performing a 51% attack would get his funds slashed (they would lose their funds) if they attack the network, meaning that they can only perform a 51% attack once. However, in Bitcoin, anyone who controls 51% of the mining hash power could perform multiple 51% attacks without losing everything like they could in ETH 2.0.
So in conclusion, while Ethereum doesn’t have the guaranteed anti-inflation security of a hard cap, it does have the guarantee of always paying it’s miners (or stakers under ETH 2.0) enough to keep the network secure. In contrast, while Bitcoin’s social contract may guarantee a hard cap of 21 million, it cannot simultaneously guarantee network security in the long run. Eventually, its users will have to decide if they want a secure network with more than 21 million coins or a tax to pay for security or an insecure network with super high fees and a hard cap of 21 million Bitcoin.
Disclaimer: The details I covered around 51% attacks and network security are simplified. I am not an expert in this field and things are a lot more nuanced than I laid out in my simplifications above.
submitted by Tricky_Troll to ethfinance [link] [comments]

BTC.top is mining blocks at a loss when BCH mining is not profitable and the block interval exceeds 1 hour -- thank you!

Between Feb 1st and Feb 23rd, it had taken at least 1 hour between blocks 59 different times. Of the 59 blocks that broke these dry spells, 37 were mined by BTC.top, or 62.7%. The hashrate during these dry spells is otherwise about 2.0-2.5 EH/s, which indicates that BTC.top is moving about 4 EH/s over to BCH during long dry spells -- that's about 100% of their SHA256 hashrate.
This behavior started on Feb 1st. There were 175 blocks that took at least 1 hour to mine between Dec 15 and Jan 31st, and of those, only 6 (3.4%) were mined by BTC.top. Before Feb 1st, BTC.top was actively avoiding unprofitable mining. Now, they're actively seeking it out during the worst dry spells with the intent to prevent confirmation times from getting too long.
During dry spells, it's usually around 10% more profitable to mine BTC than to mine BCH, so each time BTC.top does this, they're losing around $440 in revenue. That's about $16,400 so far, or around $20,000 per month.
I think BTC.top deserves a big thank you for doing this.
I also think the BCH community needs to fix the difficulty adjustment algorithm, since that's the reason why we're getting these dry spells in the first place. Teaser: i'm working on a video and/or article explaining the problem and how we can fix it. This discovery came while doing research for that. Expect it to be published within the next few days.
In a comment below is a list of all blocks since 613500 that took more than 1 hour to mine (according to their timestamps), what the exact delay was (in seconds), and whether they were mined by BTC.top, if anyone is curious. I also have data on who mined the rest, but I omitted it from this list to make it easier to read. (BTC.com and BTC.top were too hard to visually distinguish from each other.) If anyone wants the full list, let me know and I'll reformat it and post it in a comment.
submitted by jtoomim to btc [link] [comments]

Technical: The Path to Taproot Activation

Taproot! Everybody wants to have it, somebody wants to make it, nobody knows how to get it!
(If you are asking why everybody wants it, see: Technical: Taproot: Why Activate?)
(Pedants: I mostly elide over lockin times)
Briefly, Taproot is that neat new thing that gets us:
So yes, let's activate taproot!

The SegWit Wars

The biggest problem with activating Taproot is PTSD from the previous softfork, SegWit. Pieter Wuille, one of the authors of the current Taproot proposal, has consistently held the position that he will not discuss activation, and will accept whatever activation process is imposed on Taproot. Other developers have expressed similar opinions.
So what happened with SegWit activation that was so traumatic? SegWit used the BIP9 activation method. Let's dive into BIP9!

BIP9 Miner-Activated Soft Fork

Basically, BIP9 has a bunch of parameters:
Now there are other parameters (name, starttime) but they are not anywhere near as important as the above two.
A number that is not a parameter, is 95%. Basically, activation of a BIP9 softfork is considered as actually succeeding if at least 95% of blocks in the last 2 weeks had the specified bit in the nVersion set. If less than 95% had this bit set before the timeout, then the upgrade fails and never goes into the network. This is not a parameter: it is a constant defined by BIP9, and developers using BIP9 activation cannot change this.
So, first some simple questions and their answers:

The Great Battles of the SegWit Wars

SegWit not only fixed transaction malleability, it also created a practical softforkable blocksize increase that also rebalanced weights so that the cost of spending a UTXO is about the same as the cost of creating UTXOs (and spending UTXOs is "better" since it limits the size of the UTXO set that every fullnode has to maintain).
So SegWit was written, the activation was decided to be BIP9, and then.... miner signalling stalled at below 75%.
Thus were the Great SegWit Wars started.

BIP9 Feature Hostage

If you are a miner with at least 5% global hashpower, you can hold a BIP9-activated softfork hostage.
You might even secretly want the softfork to actually push through. But you might want to extract concession from the users and the developers. Like removing the halvening. Or raising or even removing the block size caps (which helps larger miners more than smaller miners, making it easier to become a bigger fish that eats all the smaller fishes). Or whatever.
With BIP9, you can hold the softfork hostage. You just hold out and refuse to signal. You tell everyone you will signal, if and only if certain concessions are given to you.
This ability by miners to hold a feature hostage was enabled because of the miner-exit allowed by the timeout on BIP9. Prior to that, miners were considered little more than expendable security guards, paid for the risk they take to secure the network, but not special in the grand scheme of Bitcoin.

Covert ASICBoost

ASICBoost was a novel way of optimizing SHA256 mining, by taking advantage of the structure of the 80-byte header that is hashed in order to perform proof-of-work. The details of ASICBoost are out-of-scope here but you can read about it elsewhere
Here is a short summary of the two types of ASICBoost, relevant to the activation discussion.
Now, "overt" means "obvious", while "covert" means hidden. Overt ASICBoost is obvious because nVersion bits that are not currently in use for BIP9 activations are usually 0 by default, so setting those bits to 1 makes it obvious that you are doing something weird (namely, Overt ASICBoost). Covert ASICBoost is non-obvious because the order of transactions in a block are up to the miner anyway, so the miner rearranging the transactions in order to get lower power consumption is not going to be detected.
Unfortunately, while Overt ASICBoost was compatible with SegWit, Covert ASICBoost was not. This is because, pre-SegWit, only the block header Merkle tree committed to the transaction ordering. However, with SegWit, another Merkle tree exists, which commits to transaction ordering as well. Covert ASICBoost would require more computation to manipulate two Merkle trees, obviating the power benefits of Covert ASICBoost anyway.
Now, miners want to use ASICBoost (indeed, about 60->70% of current miners probably use the Overt ASICBoost nowadays; if you have a Bitcoin fullnode running you will see the logs with lots of "60 of last 100 blocks had unexpected versions" which is exactly what you would see with the nVersion manipulation that Overt ASICBoost does). But remember: ASICBoost was, at around the time, a novel improvement. Not all miners had ASICBoost hardware. Those who did, did not want it known that they had ASICBoost hardware, and wanted to do Covert ASICBoost!
But Covert ASICBoost is incompatible with SegWit, because SegWit actually has two Merkle trees of transaction data, and Covert ASICBoost works by fudging around with transaction ordering in a block, and recomputing two Merkle Trees is more expensive than recomputing just one (and loses the ASICBoost advantage).
Of course, those miners that wanted Covert ASICBoost did not want to openly admit that they had ASICBoost hardware, they wanted to keep their advantage secret because miners are strongly competitive in a very tight market. And doing ASICBoost Covertly was just the ticket, but they could not work post-SegWit.
Fortunately, due to the BIP9 activation process, they could hold SegWit hostage while covertly taking advantage of Covert ASICBoost!

UASF: BIP148 and BIP8

When the incompatibility between Covert ASICBoost and SegWit was realized, still, activation of SegWit stalled, and miners were still not openly claiming that ASICBoost was related to non-activation of SegWit.
Eventually, a new proposal was created: BIP148. With this rule, 3 months before the end of the SegWit timeout, nodes would reject blocks that did not signal SegWit. Thus, 3 months before SegWit timeout, BIP148 would force activation of SegWit.
This proposal was not accepted by Bitcoin Core, due to the shortening of the timeout (it effectively times out 3 months before the initial SegWit timeout). Instead, a fork of Bitcoin Core was created which added the patch to comply with BIP148. This was claimed as a User Activated Soft Fork, UASF, since users could freely download the alternate fork rather than sticking with the developers of Bitcoin Core.
Now, BIP148 effectively is just a BIP9 activation, except at its (earlier) timeout, the new rules would be activated anyway (instead of the BIP9-mandated behavior that the upgrade is cancelled at the end of the timeout).
BIP148 was actually inspired by the BIP8 proposal (the link here is a historical version; BIP8 has been updated recently, precisely in preparation for Taproot activation). BIP8 is basically BIP9, but at the end of timeout, the softfork is activated anyway rather than cancelled.
This removed the ability of miners to hold the softfork hostage. At best, they can delay the activation, but not stop it entirely by holding out as in BIP9.
Of course, this implies risk that not all miners have upgraded before activation, leading to possible losses for SPV users, as well as again re-pressuring miners to signal activation, possibly without the miners actually upgrading their software to properly impose the new softfork rules.

BIP91, SegWit2X, and The Aftermath

BIP148 inspired countermeasures, possibly from the Covert ASiCBoost miners, possibly from concerned users who wanted to offer concessions to miners. To this day, the common name for BIP148 - UASF - remains an emotionally-charged rallying cry for parts of the Bitcoin community.
One of these was SegWit2X. This was brokered in a deal between some Bitcoin personalities at a conference in New York, and thus part of the so-called "New York Agreement" or NYA, another emotionally-charged acronym.
The text of the NYA was basically:
  1. Set up a new activation threshold at 80% signalled at bit 4 (vs bit 1 for SegWit).
    • When this 80% signalling was reached, miners would require that bit 1 for SegWit be signalled to achive the 95% activation needed for SegWit.
  2. If the bit 4 signalling reached 80%, increase the block weight limit from the SegWit 4000000 to the SegWit2X 8000000, 6 months after bit 1 activation.
The first item above was coded in BIP91.
Unfortunately, if you read the BIP91, independently of NYA, you might come to the conclusion that BIP91 was only about lowering the threshold to 80%. In particular, BIP91 never mentions anything about the second point above, it never mentions that bit 4 80% threshold would also signal for a later hardfork increase in weight limit.
Because of this, even though there are claims that NYA (SegWit2X) reached 80% dominance, a close reading of BIP91 shows that the 80% dominance was only for SegWit activation, without necessarily a later 2x capacity hardfork (SegWit2X).
This ambiguity of bit 4 (NYA says it includes a 2x capacity hardfork, BIP91 says it does not) has continued to be a thorn in blocksize debates later. Economically speaking, Bitcoin futures between SegWit and SegWit2X showed strong economic dominance in favor of SegWit (SegWit2X futures were traded at a fraction in value of SegWit futures: I personally made a tidy but small amount of money betting against SegWit2X in the futures market), so suggesting that NYA achieved 80% dominance even in mining is laughable, but the NYA text that ties bit 4 to SegWit2X still exists.
Historically, BIP91 triggered which caused SegWit to activate before the BIP148 shorter timeout. BIP148 proponents continue to hold this day that it was the BIP148 shorter timeout and no-compromises-activate-on-August-1 that made miners flock to BIP91 as a face-saving tactic that actually removed the second clause of NYA. NYA supporters keep pointing to the bit 4 text in the NYA and the historical activation of BIP91 as a failed promise by Bitcoin developers.

Taproot Activation Proposals

There are two primary proposals I can see for Taproot activation:
  1. BIP8.
  2. Modern Softfork Activation.
We have discussed BIP8: roughly, it has bit and timeout, if 95% of miners signal bit it activates, at the end of timeout it activates. (EDIT: BIP8 has had recent updates: at the end of timeout it can now activate or fail. For the most part, in the below text "BIP8", means BIP8-and-activate-at-timeout, and "BIP9" means BIP8-and-fail-at-timeout)
So let's take a look at Modern Softfork Activation!

Modern Softfork Activation

This is a more complex activation method, composed of BIP9 and BIP8 as supcomponents.
  1. First have a 12-month BIP9 (fail at timeout).
  2. If the above fails to activate, have a 6-month discussion period during which users and developers and miners discuss whether to continue to step 3.
  3. Have a 24-month BIP8 (activate at timeout).
The total above is 42 months, if you are counting: 3.5 years worst-case activation.
The logic here is that if there are no problems, BIP9 will work just fine anyway. And if there are problems, the 6-month period should weed it out. Finally, miners cannot hold the feature hostage since the 24-month BIP8 period will exist anyway.

PSA: Being Resilient to Upgrades

Software is very birttle.
Anyone who has been using software for a long time has experienced something like this:
  1. You hear a new version of your favorite software has a nice new feature.
  2. Excited, you install the new version.
  3. You find that the new version has subtle incompatibilities with your current workflow.
  4. You are sad and downgrade to the older version.
  5. You find out that the new version has changed your files in incompatible ways that the old version cannot work with anymore.
  6. You tearfully reinstall the newer version and figure out how to get your lost productivity now that you have to adapt to a new workflow
If you are a technically-competent user, you might codify your workflow into a bunch of programs. And then you upgrade one of the external pieces of software you are using, and find that it has a subtle incompatibility with your current workflow which is based on a bunch of simple programs you wrote yourself. And if those simple programs are used as the basis of some important production system, you hve just screwed up because you upgraded software on an important production system.
And well, one of the issues with new softfork activation is that if not enough people (users and miners) upgrade to the newest Bitcoin software, the security of the new softfork rules are at risk.
Upgrading software of any kind is always a risk, and the more software you build on top of the software-being-upgraded, the greater you risk your tower of software collapsing while you change its foundations.
So if you have some complex Bitcoin-manipulating system with Bitcoin somewhere at the foundations, consider running two Bitcoin nodes:
  1. One is a "stable-version" Bitcoin node. Once it has synced, set it up to connect=x.x.x.x to the second node below (so that your ISP bandwidth is only spent on the second node). Use this node to run all your software: it's a stable version that you don't change for long periods of time. Enable txiindex, disable pruning, whatever your software needs.
  2. The other is an "always-up-to-date" Bitcoin Node. Keep its stoarge down with pruning (initially sync it off the "stable-version" node). You can't use blocksonly if your "stable-version" node needs to send transactions, but otherwise this "always-up-to-date" Bitcoin node can be kept as a low-resource node, so you can run both nodes in the same machine.
When a new Bitcoin version comes up, you just upgrade the "always-up-to-date" Bitcoin node. This protects you if a future softfork activates, you will only receive valid Bitcoin blocks and transactions. Since this node has nothing running on top of it, it is just a special peer of the "stable-version" node, any software incompatibilities with your system software do not exist.
Your "stable-version" Bitcoin node remains the same version until you are ready to actually upgrade this node and are prepared to rewrite most of the software you have running on top of it due to version compatibility problems.
When upgrading the "always-up-to-date", you can bring it down safely and then start it later. Your "stable-version" wil keep running, disconnected from the network, but otherwise still available for whatever queries. You do need some system to stop the "always-up-to-date" node if for any reason the "stable-version" goes down (otherwisee if the "always-up-to-date" advances its pruning window past what your "stable-version" has, the "stable-version" cannot sync afterwards), but if you are technically competent enough that you need to do this, you are technically competent enough to write such a trivial monitor program (EDIT: gmax notes you can adjust the pruning window by RPC commands to help with this as well).
This recommendation is from gmaxwell on IRC, by the way.
submitted by almkglor to Bitcoin [link] [comments]

Minimum Viable Issuance - Why Ethereum’s lack of a hard cap on ETH issuance is a good thing.

This post will explain how the argument used by the average Bitcoin maximalist, thinking that they have found Ethereum’s achilles heel when talking about issuance is actually highlighting one of Ethereum’s strong points and one of the main threats to the longevity of the Bitcoin network.
So first let’s answer the question which I know many people have about Ethereum:

What is Ethereum’s ETH issuance schedule?

Ethereum has an issuance policy of Minimum Viable Issuance. So what does this mean exactly? It means that the issuance of ETH will be as low as possible while also maintaining a sufficient budget to pay miners (and soon to be stakers) to keep the network secure. For example, if ETH issuance was halved, miners would drop off the network and stop mining as it is no longer profitable for them to mine. As a result, the network would be less secure as it would cost less money for an attacker to control 51% of the hash power and attack the network. This means that the Ethereum community plans to change ETH issuance as time goes on to maintain a reasonable security budget which will keep the network secure but will also keep inflation in check. We have done this twice in the past with EIP-649 and EIP-1234 which reduced block rewards from 5 ETH per block to 3 ETH and from 3 ETH to 2 ETH respectively. I previously made a graph of ETH issuance over time here: https://redd.it/it8ce7
So while Ethereum doesn’t have a strictly defined issuance schedule, the community will reject any proposals which either put the security of the network at risk such as the recent EIP-2878, or we will reject proposals which will lead to excessive network security and therefore an unnecessarily high inflation rate (or we will accept proposals which reduce issuance after price rises and therefore the security budget rises). This means that when Bitcoiners accuse the Ethereum Foundation of being no better than a central bank because they can “print more Ether”, this is completely untrue. Any proposals made by the EF which would increase issuance unnecessarily would be rejected by the community in the same way that a proposal to increase the supply of Bitcoin from 21 million to 22 million would be rejected. There is a social contract around both Bitcoin’s and Ethereum’s issuance schedules. Any networks or proposals which break the social contracts of 21 million Bitcoins and minimal viable issuance of Ether would be a breach of these contracts and the new proposed network would be labeled by the community as illegitimate and the original network would live on.

So why is minimum viable issuance better than a hard cap?

Minimum viable issuance is better than a hard cap because it puts the most important part of the network first - the security. MVI ensures that the Ethereum network will always have a security budget which keeps the cost of a 51% attack impractically high. Bitcoin on the other hand, halves its security budget every 4 years until eventually only the transaction fees pay for network security. This means that every 4 years, the amount of money paying for network security halves until eventually, the value of attacking the network becomes greater than the security budget and someone performs a 51% attack (technically the security budget only halves if terms of BTC not in dollars. However, even if the price of Bitcoin more than doubles in the time that the security budget halves, the ratio of security budget to value secured on the network still halves, doubling the financial viability of performing a network attack). The strategy to pay for the security budget once Bitcoin issuance stops is for transaction fees to secure the network since transaction fees are paid to miners. Not only does this have its own security problems which I won’t detail here, but unless Bitcoin scales on layer 1 (layer 2 scaling solutions have their own security mechanisms separate from L1), then fees would have to cost well in the thousands of dollars to secure a trillion dollar market cap Bitcoin that is secured by nothing but fees. If Bitcoin maximalists want a 10 trillion or 100 trillion dollar market cap then expect fees to go up another 10 or 100 times from there.
Ethereum on the other hand, will be able to keep its network secure with approximately 1-2% annual issuance being paid to stakers under ETH 2.0. This is because not all of the network will be staking, so if 33 million of the approximately 110 million Ether in existence stakes under ETH 2.0, then paying this 33 million Ether 6% a year (a very decent yield!) would cost just under 2 million ETH per year which would equate to less than 2% annual ETH inflation. This is also before considering EIP-1559 which will burn a portion of transaction fees which will counter the effect of this inflation and potentially even make ETH deflationary if the sum of all burned transaction fees are greater than the annual inflation. Also, under ETH 2.0, an attacker performing a 51% attack would get his funds slashed (they would lose their funds) if they attack the network, meaning that they can only perform a 51% attack once. However, in Bitcoin, anyone who controls 51% of the mining hash power could perform multiple 51% attacks without losing everything like they could in ETH 2.0.
So in conclusion, while Ethereum doesn’t have the guaranteed anti-inflation security of a hard cap, it does have the guarantee of always paying it’s miners (or stakers under ETH 2.0) enough to keep the network secure. In contrast, while Bitcoin’s social contract may guarantee a hard cap of 21 million, it cannot simultaneously guarantee network security in the long run. Eventually, its users will have to decide if they want a secure network with more than 21 million coins or a tax to pay for security or an insecure network with super high fees and a hard cap of 21 million Bitcoin.
Disclaimer: The details I covered around 51% attacks and network security are simplified. I am not an expert in this field and things are a lot more nuanced than I laid out in my simplifications above.
submitted by Tricky_Troll to ethtrader [link] [comments]

Zano Newcomers Introduction/FAQ - please read!

Welcome to the Zano Sticky Introduction/FAQ!

https://preview.redd.it/al1gy9t9v9q51.png?width=424&format=png&auto=webp&s=b29a60402d30576a4fd95f592b392fae202026ca
Hopefully any questions you have will be answered by the resources below, but if you have additional questions feel free to ask them in the comments. If you're quite technically-minded, the Zano whitepaper gives a thorough overview of Zano's design and its main features.
So, what is Zano? In brief, Zano is a project started by the original developers of CryptoNote. Coins with market caps totalling well over a billion dollars (Monero, Haven, Loki and countless others) run upon the codebase they created. Zano is a continuation of their efforts to create the "perfect money", and brings a wealth of enhancements to their original CryptoNote code.
Development happens at a lightning pace, as the Github activity shows, but Zano is still very much a work-in-progress. Let's cut right to it:
Here's why you should pay attention to Zano over the next 12-18 months. Quoting from a recent update:
Anton Sokolov has recently joined the Zano team. ... For the last months Anton has been working on theoretical work dedicated to log-size ring signatures. These signatures theoretically allows for a logarithmic relationship between the number of decoys and the size/performance of transactions. This means that we can set mixins at a level from up to 1000, keeping the reasonable size and processing speed of transactions. This will take Zano’s privacy to a whole new level, and we believe this technology will turn out to be groundbreaking!
If successful, this scheme will make Zano the most private, powerful and performant CryptoNote implementation on the planet. Bar none. A quantum leap in privacy with a minimal increase in resource usage. And if there's one team capable of pulling it off, it's this one.

What else makes Zano special?

You mean aside from having "the Godfather of CryptoNote" as the project lead? ;) Actually, the calibre of the developers/researchers at Zano probably is the project's single greatest strength. Drawing on years of experience, they've made careful design choices, optimizing performance with an asynchronous core architecture, and flexibility and extensibility with a modular code structure. This means that the developers are able to build and iterate fast, refining features and adding new ones at a rate that makes bigger and better-funded teams look sluggish at best.
Zano also has some unique features that set it apart from similar projects:
Privacy Firstly, if you're familiar with CryptoNote you won't be surprised that Zano transactions are private. The perfect money is fungible, and therefore must be untraceable. Bitcoin, for the most part, does little to hide your transaction data from unscrupulous observers. With Zano, privacy is the default.
The untraceability and unlinkability of Zano transactions come from its use of ring signatures and stealth addresses. What this means is that no outside observer is able to tell if two transactions were sent to the same address, and for each transaction there is a set of possible senders that make it impossible to determine who the real sender is.
Hybrid PoW-PoS consensus mechanism Zano achieves an optimal level of security by utilizing both Proof of Work and Proof of Stake for consensus. By combining the two systems, it mitigates their individual vulnerabilities (see 51% attack and "nothing at stake" problem). For an attack on Zano to have even a remote chance of success the attacker would have to obtain not only a majority of hashing power, but also a majority of the coins involved in staking. The system and its design considerations are discussed at length in the whitepaper.
Aliases Here's a stealth address: ZxDdULdxC7NRFYhCGdxkcTZoEGQoqvbZqcDHj5a7Gad8Y8wZKAGZZmVCUf9AvSPNMK68L8r8JfAfxP4z1GcFQVCS2Jb9wVzoe. I have a hard enough time remembering my phone number. Fortunately, Zano has an alias system that lets you register an address to a human-readable name. (@orsonj if you want to anonymously buy me a coffee)
Multisig
Multisignature (multisig) refers to requiring multiple keys to authorize a Zano transaction. It has a number of applications, such as dividing up responsibility for a single Zano wallet among multiple parties, or creating backups where loss of a single seed doesn't lead to loss of the wallet.
Multisig and escrow are key components of the planned Decentralized Marketplace (see below), so consideration was given to each of them from the design stages. Thus Zano's multisig, rather than being tagged on at the wallet-level as an afterthought, is part of its its core architecture being incorporated at the protocol level. This base-layer integration means months won't be spent in the future on complicated refactoring efforts in order to integrate multisig into a codebase that wasn't designed for it. Plus, it makes it far easier for third-party developers to include multisig (implemented correctly) in any Zano wallets and applications they create in the future.
(Double Deposit MAD) Escrow
With Zano's escrow service you can create fully customizable p2p contracts that are designed to, once signed by participants, enforce adherence to their conditions in such a way that no trusted third-party escrow agent is required.
https://preview.redd.it/jp4oghyhv9q51.png?width=1762&format=png&auto=webp&s=12a1e76f76f902ed328886283050e416db3838a5
The Particl project, aside from a couple of minor differences, uses an escrow scheme that works the same way, so I've borrowed the term they coined ("Double Deposit MAD Escrow") as I think it describes the scheme perfectly. The system requires participants to make additional deposits, which they will forfeit if there is any attempt to act in a way that breaches the terms of the contract. Full details can be found in the Escrow section of the whitepaper.
The usefulness of multisig and the escrow system may not seem obvious at first, but as mentioned before they'll form the backbone of Zano's Decentralized Marketplace service (described in the next section).

What does the future hold for Zano?

The planned upgrade to Zano's privacy, mentioned at the start, is obviously one of the most exciting things the team is working on, but it's not the only thing.
Zano Roadmap
Decentralized Marketplace
From the beginning, the Zano team's goal has been to create the perfect money. And money can't just be some vehicle for speculative investment, money must be used. To that end, the team have created a set of tools to make it as simple as possible for Zano to be integrated into eCommerce platforms. Zano's API’s and plugins are easy to use, allowing even those with very little coding experience to use them in their E-commerce-related ventures. The culmination of this effort will be a full Decentralized Anonymous Marketplace built on top of the Zano blockchain. Rather than being accessed via the wallet, it will act more as a service - Marketplace as a Service (MAAS) - for anyone who wishes to use it. The inclusion of a simple "snippet" of code into a website is all that's needed to become part a global decentralized, trustless and private E-commerce network.
Atomic Swaps
Just as Zano's marketplace will allow you to transact without needing to trust your counterparty, atomic swaps will let you to easily convert between Zano and other cyryptocurrencies without having to trust a third-party service such as a centralized exchange. On top of that, it will also lead to the way to Zano's inclusion in the many decentralized exchange (DEX) services that have emerged in recent years.

Where can I buy Zano?

Zano's currently listed on the following exchanges:
https://coinmarketcap.com/currencies/zano/markets/
It goes without saying, neither I nor the Zano team work for any of the exchanges or can vouch for their reliability. Use at your own risk and never leave coins on a centralized exchange for longer than necessary. Your keys, your coins!
If you have any old graphics cards lying around(both AMD & NVIDIA), then Zano is also mineable through its unique ProgPowZ algorithm. Here's a guide on how to get started.
Once you have some Zano, you can safely store it in one of the desktop or mobile wallets (available for all major platforms).

How can I support Zano?

Zano has no marketing department, which is why this post has been written by some guy and not the "Chief Growth Engineer @ Zano Enterprises". The hard part is already done: there's a team of world class developers and researchers gathered here. But, at least at the current prices, the team's funds are enough to cover the cost of development and little more. So the job of publicizing the project falls to the community. If you have any experience in community building/growth hacking at another cryptocurrency or open source project, or if you're a Zano holder who would like to ensure the project's long-term success by helping to spread the word, then send me a pm. We need to get organized.
Researchers and developers are also very welcome. Working at the cutting edge of mathematics and cryptography means Zano provides challenging and rewarding work for anyone in those fields. Please contact the project's Community Manager u/Jed_T if you're interested in joining the team.
Social Links:
Twitter
Discord Server
Telegram Group
Medium blog
I'll do my best to keep this post accurate and up to date. Message me please with any suggested improvements and leave any questions you have below.
Welcome to the Zano community and the new decentralized private economy!
submitted by OrsonJ to Zano [link] [comments]

Ethereum mining pitfalls, risks, and threats

Bitcoin miners are massively switching to Ethereum. According to 8btc estimates, the payback period for a Bitcoin miner is 600 days, while for the same metric on Ether it only takes 200 days. But this goodness won’t last forever. Read about what threatens the development of Ethereum below.
Hardware and Filling – Halfway to Success
Experienced folks advise taking the most productive video cards, for example, the latest models from Nvidia and AMD. When choosing, pay attention to the amount of video memory (ideally from 2 GB), memory speed (with DDR 5 memory), bus width (better with a 256-bit bus), and cooling (basically there’s no competition to Radeon devices). Take Radeon RX 570, this 169 USD card produces 24-30 Mh/s, which is superb.
The Illusion of Stability
The entire multi-million community of Ether lovers trembled in early August when the Ethereum Classic network was subjected to several 51% attacks at once. In addition, in the first half of 2020 alone, over 5 attacks were carried out on popular DeFi platforms, including Balancer ($500,000 stolen) and bZx (17,500 ETH were stolen in total). Moreover, cybercriminals do not always use technical vulnerabilities, sometimes good old social engineering works.
Reduction of Reward
Ethereum developers have proposed to reduce the block mining reward by 75%. ConsenSys Managing Director John Leelik published the EIP-2878 proposal aimed at reducing inflation and preserving purchasing power. If supported, the reward will drop to 0.5 ETH.
The transition of ETH to ETH 2.0 (PoS)
We already wrote about this in the article "Problems of Ethereum Mining", and you can also watch the interview by Peter McCormack with the project founder Vitalik Buterin.
While the opportunity is still there, we offer everyone to get the most out of it and mine profitably. For example, take a closer look at the new CoinFLy ETH Pool, that nowadays offers more rewards than others, at least by 10%.
Profit That is Not Profit
A hidden and obvious problem is choosing the pool based on its profitability. If you only have a few capacities, then it is better to choose a pool that uses the PPS+ model, if you’ve got a lot of them, then a powerful pool with PPLNS is better. And if you’ve got so many capacities that there’s even enough for others, then you can also go SOLO, buddy. More details - here.
submitted by applesEgo to gpumining [link] [comments]

Earn 51-$171 using my referral codes to learn about crypto through Coinbase! Plus! if we verify you used my links, ill give you an additional $5 in for the links you completed. Payout is instant upon completion, no gimmicks!

Make $51+ to Learn about crypto on Coinbase! Up to $150 using my Bonus! [ID Verify Needed]
(If you want to learn a little about bitcoin and crypto, read the whole thing, if you just want the bonus, only read the next 15-20 sentences)
First use this one for your signup: https://www.coinbase.com/join/schaib_sl Once you signed up and verified identity use the links below!
  1. Compound: https://www.coinbase.com/earn/compound/lesson/5
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Altogether there are 6 different lessons, each takes like 5-10 mins with a quiz at the end. Only 3 of them i will get rewarded for though. You will also get an extra $10 for each completed for my referral + $51 from all 6 quizzes and also another $120 if you get 4 people to do the quizzes. They are really quick, especially if already have an account. Also you can look up the answers for each one on google so you dont need to sit through them, be even quicker. Please complete the 3 i sent the links with to the end so we get 10$ reward extra. As soon as you finish they send you the coins into coin base account. Once they are in your account you can sell them instantly for $$, and transfer to your bank account, OR you can keep them on your account. EOS, and COMP have been doing really well, so they might be worth keeping. This is just a really good promotion, probably one of the better i’ve see. Its easy AF, quick, and the reward is really good. If you don’t know anything about crypto, i highly suggest you learn. It’s still very early and its growing super quick. cryptocurrency has gained a ton of attention in the past couple years and is actually starting to become a real actual currencies (already is, but according to our governments) many different types of crypto is starting to become accepted in a bunch of stores, realtors are taking as payment for a house, and colleges are even accepting as tuition. I started researching bitcoin a short amount of time after Satoshi Nakamoto released it (2009) and bought my first few in 2013 at 15$!! From early 2013 the price was about $11 USD and at the end of 2017, $20,000. But they fell and recovered as the stock market does. But the 24-hour trading Volume today, in 2020 is is INSANE ($20,690,383,231) with an even crazier market cap of $209,783,036,693, which by the middle-end of next month should reach $210 billion, possibly sooner. Its just a really smart investment, buy a little over time. Some analysts are predicting that BTC could reach anywhere from $100k to $1,000,000 for BTC in the next few years. Im not sure exactly where i would name the price in 5 years, but know there is only a limited supply of BTC. They are mined (basically just means that the transactions and blocks on the ledger or blockchain are verified) by sophisticated pieces of hardware called ASIIC miners, or some even use GPU, and CPU in expensive computers. Although CPU mining can be very inefficient anymore as the mathematical calculations and problems the miners need to solve get more and more complicated over time. This, the limited supply, the increasing interest, usability, and need for blockchain technology all add the the idea of BTC reaching such incredibly high futures. Their is a total of 20,999,976 bitcoin and that is it. With a total of 18,517,418.75 in circulation. The last BTC is estimated to be 2140. Big difference from the 18.5M mined in 10 years, right? Thats because of the halving. Anyway, I’m sure you have heard some things about BTC, probably from the media, and if it was, it probably wasn’t good. You probably heard that people buy illegal dangerous stuff off of the “Darknet” and that its completely untraceable. Or that money can be laundered through BTC. But that is hardly partly true for BTC and other cryptocurrencies, and completely true for the USD. While the blockchain doesn’t include any personal information connected to wallets (unless you want it there, or you have the wallet through a service that makes you use personal information, which many services are doing), all transactions can still be tracked and seen by anyone who has an internet connection at https://www.blockchain.com. So if the identity of one of the wallet addresses is known, it would be easier to figure the other out. But for paper, money that cannot be said... completely untraceable, has been prone to money laundering since it’s inception, can be used to purchase various drugs—hookers, guns, dynamite, and even politicians... since its inception, without a trace. The reason not just bitcoin, but i think even more exciting, is just blockchain technology and a host of things that are coming with it. It can be used for tons of things, software and can be built directly into blockchains, they can hold and process data at enormous speeds, while being extremely, extremely secure. More secure in a lot ways than banks. There are tons of new cryptocurrency projects being started everyday. For the most part, all of these projects have some sort of token integrated, because its what powers, and processes the data. If people find the project interesting or a great idea you like you’ll be able to invest in it buy buying/selling, or holding the token/coin. When these projects gain enough traction by like-minded individuals, the coin gains a value. This value can then be exchanged for other crypto, or traded directly for Fiat currencies ($,€,₽,¥,£,₩). For some examples of how wonderful the community is, and reveal what the true nature of blockchain and crypto was founded on, ill list 3 of my favorite crypto projects of 2020 so far along with a little excerpt from the white paper or other:
  1. AIDCOIN: “allows websites to embed a widget into their website and accept donations in any cryptocurrency. Any donated crypto is transferred into AID token, which is also a stable coin. At first, this might seem like not such a good thing but the more I looked into it, the more I realized accepting a stable coin might actually make more sense for a charity as it reduces their risk exposure to volatility.”
  2. BRAVE BROWSER—Privacy Internet Browser: “As far as I’m concerned, keeping people safe and protecting their privacy and security is a noble endeavor. For far too long, giants like Google and Facebook have gotten away with unethical data practices with nothing more than a slap on the wrist. They have been able to spy on their users, abuse their data and use it for whatever purpose they deem fit. Brave Browser is looking to put an end to that through the most secure browser that exists on the market today.” Basically Brave takes on the responsibility of completely protecting privacy and from ads. As an added available option, brave allows you, to watch and look at sponsored ads while you browse. So basically just a stand-in for other browsers ads, but instead you make money WITH brave. You are awarded BAT (Basic Attention Token) for your service. BAT’s are currently at .21¢.
  3. Power Ledger: Last but not least. Power Ledger is probably one of my favorite projects that is actually making a real use-case out of crypto and blockchain. They are aiming to disrupt the energy sector with a heightened focus on renewable energy. Their software allows for three core things: 1. Energy Trading (if you have excess energy from your solar panels, for example, you can trade that to your neighbor through Power Ledger). 2. Environmental commodities trading (to help for the reliable tracking of renewable energy credits). 3. Renewable asset ownership (This will allow people who cannot afford their own renewable energy set-up to invest in fractional ownership). I honestly think Power Ledger is doing God’s work and wish them all the best.
As those projects above outlined, the basic principles behind pretty much every currency and upcoming project i have ever seen is, Trust, Sharing profit with the users who help make it into what it becomes, actual transparency, no central authority (due to decentralization), and lastly i believe it gives opportunity to those who are out if opportunity’s way. This is because it reaches so far, like into oppressive governments and 3rd work countries. Anyways, i hope to have given you a little insight during this read. Crypto has so much potential to fill and has already done so much. Looking forward to seeing where else all of this goes.
submitted by ABetterPsychiatrist to referralcodes [link] [comments]

Mining pitfalls, risks, and threats in Ethereum network

Bitcoin miners are massively switching to Ethereum. According to 8btc estimates, the payback period for a Bitcoin miner is 600 days, while for the same metric on Ether it only takes 200 days. But this goodness won’t last forever. Read about what threatens the development of Ethereum below.
Hardware and Filling – Halfway to Success
Experienced folks advise taking the most productive video cards, for example, the latest models from Nvidia and AMD. When choosing, pay attention to the amount of video memory (ideally from 2 GB), memory speed (with DDR 5 memory), bus width (better with a 256-bit bus), and cooling (basically there’s no competition to Radeon devices). Take Radeon RX 570, this 169 USD card produces 24-30 Mh/s, which is superb.
The Illusion of Stability
The entire multi-million community of Ether lovers trembled in early August when the Ethereum Classic network was subjected to several 51% attacks at once. In addition, in the first half of 2020 alone, over 5 attacks were carried out on popular DeFi platforms, including Balancer ($500,000 stolen) and bZx (17,500 ETH were stolen in total). Moreover, cybercriminals do not always use technical vulnerabilities, sometimes good old social engineering works.
Reduction of Reward
Ethereum developers have proposed to reduce the block mining reward by 75%. ConsenSys Managing Director John Leelik published the EIP-2878 proposal aimed at reducing inflation and preserving purchasing power. If supported, the reward will drop to 0.5 ETH.
The transition of ETH to ETH 2.0 (PoS)
We already wrote about this in the article "Problems of Ethereum Mining", and you can also watch the interview by Peter McCormack with the project founder Vitalik Buterin.
While the opportunity is still there, we offer everyone to get the most out of it and mine profitably. For example, take a closer look at the new CoinFLy ETH Pool, that nowadays offers more rewards than others, at least by 10%.
Profit That is Not Profit
A hidden and obvious problem is choosing the pool based on its profitability. If you only have a few capacities, then it is better to choose a pool that uses the PPS+ model, if you’ve got a lot of them, then a powerful pool with PPLNS is better. And if you’ve got so many capacities that there’s even enough for others, then you can also go SOLO, buddy. More details - here.
submitted by applesEgo to CryptoCurrencies [link] [comments]

[OWL WATCH] Waiting for "IOTA TIME" 20; Hans's re-defined directions for DLT

Disclaimer: This is my editing, so there could be some misunderstandings...
--------------------------------------------
wellwho오늘 오후 4:50
u/Ben Royce****how far is society2 from having something clickable powered by IOTA?
Ben Royce오늘 오후 4:51
demo of basic tech late sep/ early oct. MVP early 2021
---------------------------------------------------
HusQy
Colored coins are the most misunderstood upcoming feature of the IOTA protocol. A lot of people see them just as a competitor to ERC-20 tokens on ETH and therefore a way of tokenizing things on IOTA, but they are much more important because they enable "consensus on data".
Bob
All this stuff already works on neblio but decentralized and scaling to 3500 tps
HusQy
Neblio has 8 mb blocks with 30 seconds blocktime. This is a throughput of 8 mb / 30 seconds = 267 kb per second. Transactions are 401+ bytes which means that throughput is 267 kb / 401 bytes = 665 TPS. IOTA is faster, feeless and will get even faster with the next update ...
-----------------------------------------------------------------------------
HusQy
Which DLT would be more secure? One that is collaboratively validated by the economic actors of the world (coporations, companies, foundations, states, people) or one that is validated by an anonymous group of wealthy crypto holders?
HusQy
The problem with current DLTs is that we use protection mechanisms like Proof of Work and Proof of Stake that are inherently hard to shard. The more shards you have, the more you have to distribute your hashing power and your stake and the less secure the system becomes.
HusQy
Real world identities (i.e. all the big economic actors) however could shard into as many shards as necessary without making the system less secure. Todays DLTs waste trust in the same way as PoW wastes energy.
HusQy
Is a secure money worth anything if you can't trust the economic actors that you would buy stuff from? If you buy a car from Volkswagen and they just beat you up and throw you out of the shop after you payed then a secure money won't be useful either :P
HusQy
**I believe that if you want to make DLT work and be successful then we need to ultimately incorporate things like trust in entities into the technology.**Examples likes wirecard show that trusting a single company is problematic but trusting the economy as a whole should be at ...
**... least as secure as todays DLTs.**And as soon as you add sharding it will be orders of magnitude more secure. DLT has failed to deliver because people have tried to build a system in vacuum that completely ignores things that already exist and that you can leverage on.
----------------------------------------------------------------------------------
HusQy
Blockchain is a bit like people sitting in a room, trying to communicate through BINGO sheets. While they talk, they write down some of the things that have been said and as soon as one screams BINGO! he hands around his sheet to inform everybody about what has been said.
HusQy
If you think that this is the most efficient form of communication for people sitting in the same room and the answer to scalability is to make bigger BINGO sheets or to allow people to solve the puzzle faster then you will most probably never understand what IOTA is working on.
--------------------------------------------------------------------------------
HusQy
**Blockchain does not work with too many equally weighted validators.****If 400 validators produce a validating statement (block) at the same time then only one can survive as part of a longest chain.**IOTA is all about collaborative validation.
**Another problem of blockchain is that every transaction gets sent twice through the network. Once from the nodes to the miners and a 2nd time from the miners as part of a block.**Blockchain will therefore always only be able to use 50% of the network throughput.
And****the last problem is that you can not arbitrarily decrease the time between blocks as it breaks down if the time between blocks gets smaller than the average network delay. The idle time between blocks is precious time that could be used for processing transactions.
-----------------------------------------------------------------------------
HusQy
I am not talking about a system with a fixed number of validators but one that is completely open and permissionless where any new company can just spin up a node and take part in the network.
------------------------------------------------------------------------
HusQy
Proof of Work and Proof of Stake are both centralizing sybil-protection mechanism. I don't think that Satoshi wanted 14 mining pools to run the network.
And "economic clustering" was always the "end game" of IOTA.
-----------------------------------------------------------------------------
HusQy
**Using Proof of Stake is not trustless. Proof of Stake means you trust the richest people and hope that they approve your transactions. The rich are getting richer (through your fees) and you are getting more and more dependant on them.**Is that your vision of the future?
----------------------------------------------------------------------------

HusQy
Please read again exactly what I wrote. I have not spoken of introducing governance by large companies, nor have I said that IOTA should be permissioned. We aim for a network with millions or even billions of nodes.

HusQy
That can't work at all with a permissioned ledger - who should then drop off all these devices or authorize them to participate in the network? My key message was the following: Proof of Work and Proof of Stake will always be if you split them up via sharding ...

HusQy
... less secure because you simply need fewer coins or less hash power to have the majority of the votes in a shard. This is not the case with trust in society and the economy. When all companies in the world jointly secure a DLT ...

HusQy
... then these companies could install any number of servers in any number of shards without compromising security, because "trust" does not become less just because they operate several servers. First of all, that is a fact and nothing else.

HusQy
Proof of Work and Proof of Stake are contrary to the assumption of many not "trustless" but follow the maxim: "In the greed of miners we trust!" The basic assumption that the miners do not destroy the system that generates income for them is fundamental here for the ...

HusQy
... security of every DLT. I think a similar assumption would still be correct for the economy as a whole: The companies of the world (and not just the big ones) would not destroy the system with which their customers pay them. In this respect, a system would be ...

HusQy
... which is validated by society and the economy as a whole probably just as "safely" as a system which is validated by a few anonymous miners. Why a small elite of miners should be better validators than any human and ...

HusQy
... To be honest, companies in this world do not open up to me. As already written in my other thread, safe money does not bring you anything if you have to assume that Volkswagen will beat you up and throw you out of the store after you ...

HusQy
... paid for a car. The thoughts I discussed say nothing about the immediate future of IOTA (we use for Coordicide mana) but rather speak of a world where DLT has already become an integral part of our lives and we ...

HusQy
... a corresponding number of companies, non-profit organizations and people have used DLT and where such a system could be implemented. The point here is not to create a governance solution that in any way influences the development of technology ...

HusQy
... or have to give nodes their OK first, but about developing a system that enables people to freely choose the validators they trust. For example, you can also declare your grandma to be a validator when you install your node or your ...

HusQy
... local supermarket. Economic relationships in the real world usually form a close-knit network and it doesn't really matter who you follow as long as the majority is honest. I also don't understand your criticism of censorship, because something like that in IOTA ...

HusQy
... is almost impossible. Each transaction confirms two other transactions which is growing exponentially. If someone wanted to ignore a transaction, he would have to ignore an exponential number of other transactions after a very short time. In contrast to blockchain ...

HusQy
... validators in IOTA do not decide what is included in the ledger, but only decide which of several double spends should be confirmed. Honest transactions are confirmed simply by having other transactions reference them ...

HusQy
... and the "validators" are not even asked. As for the "dust problem", this is indeed something that is a bigger problem for IOTA than for other DLTs because we have no fees, but it is also not an unsolvable problem. Bitcoin initially has a ...

HusQy
Solved similar problem by declaring outputs with a minimum amount of 5430 satoshis as invalid ( github.com/Bitcoin/Bitcoi…). A similar solution where an address must contain a minimum amount is also conceivable for IOTA and we are discussing ...

HusQy
... several possibilities (including compressing dust using cryptographic methods). Contrary to your assumption, checking such a minimum amount is not slow but just as fast as checking a normal transaction. And mine ...

HusQy
... In my opinion this is no problem at all for IOTA's use case. The important thing is that you can send small amounts, but after IOTA is feeless it is also okay to expect the recipients to regularly send their payments on a ...

HusQy
... merge address. The wallets already do this automatically (sweeping) and for machines it is no problem to automate this process. So far this was not a problem because the TPS were limited but with the increased TPS throughput of ...

HusQy
... Chrysalis it becomes relevant and appropriate solutions are discussed and then implemented accordingly. I think that was the most important thing first and if you have further questions just write :)

HusQy
And to be very clear! I really appreciate you and your questions and don't see this as an attack at all! People who see such questions as inappropriate criticism should really ask whether they are still objective. I have little time at the moment because ...

HusQy
... my girlfriend is on tour and has to take care of our daughter, but as soon as she is back we can discuss these things in a video. I think that the concept of including the "real world" in the concepts of DLT is really exciting and ...

HusQy
... that would certainly be exciting to discuss in a joint video. But again, that's more of a vision than a specific plan for the immediate future. This would not work with blockchain anyway but IOTA would be compatible so why not think about such things.
-----------------------------------------------------------------------

HusQy
All good my big one :P But actually not that much has changed. There has always been the concept of "economic clustering" which is basically based on similar ideas. We are just now able to implement things like this for the first time.
----------------------------------------------------------------------------------

HusQy
Exactly. It would mean that addresses "cost" something but I would rather pay a few cents than fees for each transaction. And you can "take" this minimum amount with you every time you change to a new address.

HusQy
All good my big one :P But actually not that much has changed. There has always been the concept of "economic clustering" which is basically based on similar ideas. We are just now able to implement things like this for the first time.
-----------------------------------------------------------------------------------

Relax오늘 오전 1:17
Btw. Hans (sorry for interrupting this convo) but what make people say that IOTA is going the permissioned way because of your latest tweets? I don't get why some people are now forecasting that... Is it because of missing specs or do they just don't get the whole idea?

Hans Moog [IF]오늘 오전 1:20
its bullshit u/Relaxan identity based system would still be open and permissionless where everybody can choose the actors that they deem trustworthy themselves but thats anyway just sth that would be applicable with more adoption
[오전 1:20]
for now we use mana as a predecessor to an actual reputation system

Sissors오늘 오전 1:31
If everybody has to choose actors they deem trustworthy, is it still permissionless? Probably will become a bit a semantic discussion, but still

Hans Moog [IF]오늘 오전 1:34
Of course its permissionless you can follow your grandma if you want to :p

Sissors오늘 오전 1:36
Well sure you can, but you will need to follow something which has a majority of the voting power in the network. Nice that you follow your grandma, but if others dont, her opinion (or well her nodes opinion) is completely irrelevant

Hans Moog [IF]오늘 오전 1:37
You would ideally follow the people that are trustworthy rather than your local drug dealers yeah

Sissors오늘 오전 1:38
And tbh, sure if you do it like that is easy. If you just make the users responsible for only connection to trustworthy nodes

Hans Moog [IF]오늘 오전 1:38
And if your grandma follows her supermarket and some other people she deems trustworthy then thats fine as well
[오전 1:38]
+ you dont have just 1 actor that you follow

Sissors오늘 오전 1:38
No, you got a large list, since yo uwant to follow those which actually matter. So you jsut download a standard list from the internet

Hans Moog [IF]오늘 오전 1:39
You can do that
[오전 1:39]
Is bitcoin permissionless? Should we both try to become miners?
[오전 1:41]
I mean miners that actually matter and not find a block every 10 trillion years 📷
[오전 1:42]
If you would want to become a validator then you would need to build up trust among other people - but anybody can still run a node and issue transactions unlike in hashgraph where you are not able to run your own nodes(수정됨)
[오전 1:48]
Proof of Stake is also not trustless - it just has a builtin mechanism that downloads the trusted people from the blockchain itself (the richest dudes)

Sissors오늘 오전 1:52
I think most agree it would be perfect if every person had one vote. Which is pr oblematic to implement of course. But I really wonder if the solution is to just let users decide who to trust. At the very least I expect a quite centralized network

Hans Moog [IF]오늘 오전 1:53
of course even a trust based system would to a certain degree be centralized as not every person is equally trustworthy as for example a big cooperation
[오전 1:53]
but I think its gonna be less centralized than PoS or PoW
[오전 1:53]
but anyway its sth for "after coordicide"
[오전 1:54]
there are not enough trusted entities that are using DLT, yet to make such a system work reasonably well
[오전 1:54]
I think the reason why blockchain has not really started to look into these kind of concepts is because blockchain doesnt work with too many equally weighted validators
[오전 1:56]
I believe that DLT is only going to take over the world if it is actually "better" than existing systems and with better I mean cheaper, more secure and faster and PoS and PoW will have a very hard time to deliver that
[오전 1:56]
especially if you consider that its not only going to settle value transfers

Relax오늘 오전 1:57
I like this clear statements, it makes it really clear that DLT is still in its infancy

Hans Moog [IF]오늘 오전 1:57
currently bank transfers are order of magnitude cheaper than BTC or ETH transactions

Hans Moog [IF]오늘 오전 1:57
and we you think that people will adopt it just because its crypto then I think we are mistaken
[오전 1:57]
The tech needs to actually solve a problem
[오전 1:57]
and tbh. currently people use PayPal and other companies to settle their payments
[오전 1:58]
having a group of the top 500 companies run such a service together is already much better(수정됨)
[오전 1:58]
especially if its fast and feeless
[오전 2:02]
and the more people use it, the more decentralized it actually becomes
[오전 2:02]
because you have more trustworthy entities to choose of

Evaldas [IF]오늘 오전 2:08
"in the greed of miners we trust"


submitted by btlkhs to Iota [link] [comments]

Earn 51-$171 in crypto (compound, stellar, celo, and maker) by simply learning about them and answering questions through my coinbase link! Instant payout upon completion! Can sell for cash and transfer to bank immediately! Will pay an extra $5 for each link used and completed! Very quick

Make $51+ to Learn about crypto on Coinbase! Up to $150 using my Bonus! [ID Verify Needed]
(If you want to learn a little about bitcoin and crypto, read the whole thing, if you just want the bonus, only read the next 15-20 sentences)
First use this one for your signup: https://www.coinbase.com/join/schaib_sl Once you signed up and verified identity use the links below!
  1. Compound: https://www.coinbase.com/earn/compound/lesson/5
  2. XLM: https://coinbase.com/earn/xlm/invite/0nb8vckp
Altogether there are 6 different lessons, each takes like 5-10 mins with a quiz at the end. Only 3 of them i will get rewarded for though. You will also get an extra $10 for each completed for my referral + $51 from all 6 quizzes and also another $120 if you get 4 people to do the quizzes. They are really quick, especially if already have an account. Also you can look up the answers for each one on google so you dont need to sit through them, be even quicker. Please complete the 3 i sent the links with to the end so we get 10$ reward extra. As soon as you finish they send you the coins into coin base account. Once they are in your account you can sell them instantly for $$, and transfer to your bank account, OR you can keep them on your account. EOS, and COMP have been doing really well, so they might be worth keeping. This is just a really good promotion, probably one of the better i’ve see. Its easy AF, quick, and the reward is really good. If you don’t know anything about crypto, i highly suggest you learn. It’s still very early and its growing super quick. cryptocurrency has gained a ton of attention in the past couple years and is actually starting to become a real actual currencies (already is, but according to our governments) many different types of crypto is starting to become accepted in a bunch of stores, realtors are taking as payment for a house, and colleges are even accepting as tuition. I started researching bitcoin a short amount of time after Satoshi Nakamoto released it (2009) and bought my first few in 2013 at 15$!! From early 2013 the price was about $11 USD and at the end of 2017, $20,000. But they fell and recovered as the stock market does. But the 24-hour trading Volume today, in 2020 is is INSANE ($20,690,383,231) with an even crazier market cap of $209,783,036,693, which by the middle-end of next month should reach $210 billion, possibly sooner. Its just a really smart investment, buy a little over time. Some analysts are predicting that BTC could reach anywhere from $100k to $1,000,000 for BTC in the next few years. Im not sure exactly where i would name the price in 5 years, but know there is only a limited supply of BTC. They are mined (basically just means that the transactions and blocks on the ledger or blockchain are verified) by sophisticated pieces of hardware called ASIIC miners, or some even use GPU, and CPU in expensive computers. Although CPU mining can be very inefficient anymore as the mathematical calculations and problems the miners need to solve get more and more complicated over time. This, the limited supply, the increasing interest, usability, and need for blockchain technology all add the the idea of BTC reaching such incredibly high futures. Their is a total of 20,999,976 bitcoin and that is it. With a total of 18,517,418.75 in circulation. The last BTC is estimated to be 2140. Big difference from the 18.5M mined in 10 years, right? Thats because of the halving. Anyway, I’m sure you have heard some things about BTC, probably from the media, and if it was, it probably wasn’t good. You probably heard that people buy illegal dangerous stuff off of the “Darknet” and that its completely untraceable. Or that money can be laundered through BTC. But that is hardly partly true for BTC and other cryptocurrencies, and completely true for the USD. While the blockchain doesn’t include any personal information connected to wallets (unless you want it there, or you have the wallet through a service that makes you use personal information, which many services are doing), all transactions can still be tracked and seen by anyone who has an internet connection at https://www.blockchain.com. So if the identity of one of the wallet addresses is known, it would be easier to figure the other out. But for paper, money that cannot be said... completely untraceable, has been prone to money laundering since it’s inception, can be used to purchase various drugs—hookers, guns, dynamite, and even politicians... since its inception, without a trace. The reason not just bitcoin, but i think even more exciting, is just blockchain technology and a host of things that are coming with it. It can be used for tons of things, software and can be built directly into blockchains, they can hold and process data at enormous speeds, while being extremely, extremely secure. More secure in a lot ways than banks. There are tons of new cryptocurrency projects being started everyday. For the most part, all of these projects have some sort of token integrated, because its what powers, and processes the data. If people find the project interesting or a great idea you like you’ll be able to invest in it buy buying/selling, or holding the token/coin. When these projects gain enough traction by like-minded individuals, the coin gains a value. This value can then be exchanged for other crypto, or traded directly for Fiat currencies ($,€,₽,¥,£,₩). For some examples of how wonderful the community is, and reveal what the true nature of blockchain and crypto was founded on, ill list 3 of my favorite crypto projects of 2020 so far along with a little excerpt from the white paper or other:
  1. AIDCOIN: “allows websites to embed a widget into their website and accept donations in any cryptocurrency. Any donated crypto is transferred into AID token, which is also a stable coin. At first, this might seem like not such a good thing but the more I looked into it, the more I realized accepting a stable coin might actually make more sense for a charity as it reduces their risk exposure to volatility.”
  2. BRAVE BROWSER—Privacy Internet Browser: “As far as I’m concerned, keeping people safe and protecting their privacy and security is a noble endeavor. For far too long, giants like Google and Facebook have gotten away with unethical data practices with nothing more than a slap on the wrist. They have been able to spy on their users, abuse their data and use it for whatever purpose they deem fit. Brave Browser is looking to put an end to that through the most secure browser that exists on the market today.” Basically Brave takes on the responsibility of completely protecting privacy and from ads. As an added available option, brave allows you, to watch and look at sponsored ads while you browse. So basically just a stand-in for other browsers ads, but instead you make money WITH brave. You are awarded BAT (Basic Attention Token) for your service. BAT’s are currently at .21¢.
  3. Power Ledger: Last but not least. Power Ledger is probably one of my favorite projects that is actually making a real use-case out of crypto and blockchain. They are aiming to disrupt the energy sector with a heightened focus on renewable energy. Their software allows for three core things: 1. Energy Trading (if you have excess energy from your solar panels, for example, you can trade that to your neighbor through Power Ledger). 2. Environmental commodities trading (to help for the reliable tracking of renewable energy credits). 3. Renewable asset ownership (This will allow people who cannot afford their own renewable energy set-up to invest in fractional ownership). I honestly think Power Ledger is doing God’s work and wish them all the best.
As those projects above outlined, the basic principles behind pretty much every currency and upcoming project i have ever seen is, Trust, Sharing profit with the users who help make it into what it becomes, actual transparency, no central authority (due to decentralization), and lastly i believe it gives opportunity to those who are out if opportunity’s way. This is because it reaches so far, like into oppressive governments and 3rd work countries. Anyways, i hope to have given you a little insight during this read. Crypto has so much potential to fill and has already done so much. Looking forward to seeing where else all of this goes.
submitted by ABetterPsychiatrist to ReferralsForPay [link] [comments]

About problems of Ethereum miners

Bitcoin miners are massively switching to Ethereum. According to 8btc estimates, the payback period for a Bitcoin miner is 600 days, while for the same metric on Ether it only takes 200 days. But this goodness won’t last forever. Read about what threatens the development of Ethereum below.
Hardware and Filling – Halfway to Success
Experienced folks advise taking the most productive video cards, for example, the latest models from Nvidia and AMD. When choosing, pay attention to the amount of video memory (ideally from 2 GB), memory speed (with DDR 5 memory), bus width (better with a 256-bit bus), and cooling (basically there’s no competition to Radeon devices). Take Radeon RX 570, this 169 USD card produces 24-30 Mh/s, which is superb.
The Illusion of Stability
The entire multi-million community of Ether lovers trembled in early August when the Ethereum Classic network was subjected to several 51% attacks at once. In addition, in the first half of 2020 alone, over 5 attacks were carried out on popular DeFi platforms, including Balancer ($500,000 stolen) and bZx (17,500 ETH were stolen in total). Moreover, cybercriminals do not always use technical vulnerabilities, sometimes good old social engineering works.
Reduction of Reward
Ethereum developers have proposed to reduce the block mining reward by 75%. ConsenSys Managing Director John Leelik published the EIP-2878 proposal aimed at reducing inflation and preserving purchasing power. If supported, the reward will drop to 0.5 ETH.
The transition of ETH to ETH 2.0 (PoS)
We already wrote about this in the article "Problems of Ethereum Mining", and you can also watch the interview by Peter McCormack with the project founder Vitalik Buterin.
While the opportunity is still there, we offer everyone to get the most out of it and mine profitably. For example, take a closer look at the new CoinFLy ETH Pool, that nowadays offers more rewards than others, at least by 10%.
Profit That is Not Profit
A hidden and obvious problem is choosing the pool based on its profitability. If you only have a few capacities, then it is better to choose a pool that uses the PPS+ model, if you’ve got a lot of them, then a powerful pool with PPLNS is better. And if you’ve got so many capacities that there’s even enough for others, then you can also go SOLO, buddy. More details - here.
submitted by applesEgo to ethtrader [link] [comments]

RESEARCH REPORT ABOUT ARYACOIN

RESEARCH REPORT ABOUT ARYACOIN
Author: Gamals Ahmed, CoinEx Business Ambassador

https://preview.redd.it/a7jv4azk86u51.jpg?width=1600&format=pjpg&auto=webp&s=e4a4dbb5afacd5747076beaa59e6343b805c3392

ABSTRACT

Aryacoin is a new cryptocurrency, which allows for decentralized, peer to peer transactions of electronic cash. It is like Bitcoin and Litecoin, but the trading of the coin occurs on sales platforms that have no restriction to use. Further, it was created with the goal of addressing the double spend issues of Bitcoin and does so using a timestamp server to verify transactions. It works by taking the hash of a block of items to be timestamped and widely publishing the hash. The timestamp proves that the data must have existed at the time in order to get the hash. Each timestamp then includes the previous timestamp in its hash, forming a chain.
The Aryacoin team is continuously developing new use cases for the coin, including exchanges where users can exchange the coins without any fees or restrictions, and offline options where the coins can be bought and sold for cash. The coins can also be used on the company’s other platform, mrdigicoin.io. Along with the coin, there is a digital wallet that can be created and controlled by the user entirely, with no control being retained by the Aryacoin team.

1.INTRODUCTION

The concept of Blockchain first came to fame in October 2008, as part of a proposal for Bitcoin, with the aim to create P2P money without banks. Bitcoin introduced a novel solution to the age-old human problem of trust. The underlying blockchain technology allows us to trust the outputs of the system without trusting any actor within it. People and institutions who do not know or trust each other, reside in different countries, are subject to different jurisdictions, and who have no legally binding agreements with each other, can now interact over the Internet without the need for trusted third parties like banks, Internet platforms, or other types of clearing institutions.
When bitcoin was launched it was revolutionary allowing people to transfer money to anytime and anywhere with very low transaction fees . It was decentralized and their is no third party involved in the transaction , only the sender and receiver were involved.
This paper provide a solution to the double-spending problem using a peer-to-peer distributed timestamp server to generate computational proof of the chronological order of transactions.The system is secure as long as honest nodes collectively control more CPU power than any cooperating group of attacker nodes. Bitcoin was made so that it would not be controlled or regulated but now exchanges and governments are regulating bitcoin and other cryptocurrencies at every step. Aryacoin was developed to overcome these restrictions on a free currency.
Aryacoin is a new age cryptocurrency, which withholds the original principle on which the concept of cryptocurrency was established. Combining the best in blockchain technology since the time of its creation, Aryacoin strives to deliver the highest trading and mining standards for its community.

1.1 OVERVIEW ABOUT ARYACOIN

Aryacoin is a new age cryptocurrency, which withholds the original principle on which the concept of cryptocurrency was established. Combining the best in blockchain technology since the time of its creation, Aryacoin strives to deliver the highest trading and mining standards for its community.
Aryacoin is a blockchain based project that allows users to access their wallet on the web and mobile browsers, using their login details.
Aryacoin can be mined; it also can be exchanged by other digital currencies in several world-famous exchanges such as Hitbtc, CoinEx, P2pb2b, WhiteBit, Changelly and is also listed in reputable wallets such as Coinomi and Guarda.
Aryacoin is a coin, which can be used by anyone looking to use cryptocurrency which allows them to keep their privacy even when buying/selling the coin along with while using the coin during transactions. Proof of work and cryptographic hashes allows transactions to verified.
Stable Fee Per AYA is a unique feature of Aryacoin, so by increasing the amount or volume of the transaction, there is no change in the fee within the network, which means that the fee for sending an amount less than 1 AYA is equal to several hundred million AYA. Another unique feature of Aryacoin is the undetectability of transactions in Explorer, such as the DASH and Monero, of course, this operation is unique to Aryacoin.
Using Aryacoin digital currency, like other currencies, international transactions can be done very quickly and there are no limitations in this area as the creators claim.
Aryacoin aims to allow users to access the Aryacoin wallet via the web and mobile browsers using their login details.
Aryacoin is a peer-to-peer electronic cash system that enables users to send and receive payments directly from one party to another, and allow them to transfer funds across borders with no restriction or third party involvement. The blockchain-based system embraces the digital signature, which prevents double spending and low transfer fees, which enables users to transfer huge amounts with very low fees. The proof-of-work consensus mechanism allows each transaction to be verified and confirmed, while anonymity enables users to use the coin anywhere at any time.
According to the website of the operation, each wallet is divided into 2 or more AYA wallet addresses for each transaction, and depending on the volume of the transaction block, the origin, and destination of transactions in the network can not be traced and displayed to the public.
In fact, each wallet in Aryacoin consists of a total of several wallets. The number of these wallets increases per transaction to increase both security and privacy. Aryacoin also uses the dPoW protocol. In the dPoW protocol, a second layer is added to the network to verify transactions, which makes “51% attack” impossible even with more than half of the network hash, and blocks whose Blockchain uses this second layer of security never run the risk of 51% attacks.
AYA has been listed on a number of crypto exchanges, unlike other main cryptocurrencies, it cannot be directly purchased with fiats money. However, You can still easily buy this coin by
first buying Bitcoin from any large exchanges and then transfer to the exchange that offers to trade this coin.

1.1.1 ARYACOIN HISTORY

Aryacoin (AYA) is a new cryptocurrency, which has been created by a group of Iranian developers, is an altcoin which allows for decentralised, peer to peer transactions of electronic cash without any fees whatsoever. Along with the coin, there is a digital wallet that can be created and managed by the user entirely, with no control being retained by the Aryacoin team.
Aryacoin’s founder, Kiumars Parsa, has been a fan of alternative currencies and particularly Bitcoin.
We see people from all around the world using Blockchain technology and the great benefits that came with it and it then that I decided to solve this puzzle for find a way of bringing the last missing piece to the jigsaw. The idea for Aryacoin was born.” Parsa said.
Parsa and his team of Iranian ex-pats not only persevered but expedited the project and just a year later, in the summer of 2019, the first version of Aryacoin was released. In 2020, Aryacoin is the first and only Iranian coin listed on CMC.
Parsa goes on to state that it is now the strength of the community that has invested in the coin that will ultimately drive its success, alongside its robust technology and appealing 0% network fees.
We have thousands of voices behind Aryacoin. People for the people make this coin. It is a massive shout out for democracy. This had made us base the whole team strategy on the benefits for both our users and our traders.
One key example is that the network fee on AYA Blockchain is 0%. Yes, absolutely nothing, which which differentiates us from other networks. What also differentiates us from other coins is that we have AYAPAY which is the first cryptocurrency Gateway in the world which does not save funds on third party storage with all funds being forwarded directly to any wallet address that the Gateway owner requests”.
So for the first time ever, and unlike other gateways, incoming funds will be saved on the users account with submitted withdrawal requests then made on the Gateway host website. In AYAPAY which has also been developed by the Aryacoin team, all funds without extra fees or extra costs will directly forwarded to users wallets. We have named this technology as CloudWithdrawal.
We are continuously challenging ourselves as it is a crowded marketplace. We are striving to have a safer Blockchain against 51% attacks, faster confirmations speeds of transactions, cheaper network fee, growing the market by cooperation with Top tier Exchangers.

1.1.2 ARYACOIN’S MAIN GOAL

Aryacoin’s main goal is to educate people and give them the freedom to use cryptocurrency in any way they want. Aryacoin empowers the users to transfer, pay, trade cryptocurrency from any country around the globe.
Platforms that have been created by Aryacoin Team, as well as those that will go live in future, operate on the same principle and exclude absolutely no one.

1.1.3 PROBLEM ARYACOIN SEEKS TO SOLVE

Aryacoin aims to provide a long-term solution to the problem of double spending, which is still common in the crypto market. The developers of the system have created a peer-to-peer distributed timestamp server that generates computational proof of the transactions as they occur.
Besides, the system remains secure provided honest nodes control more CPU power than any cooperating group of attacker nodes. While Bitcoin was designed not to be regulated or controlled, many exchanges and governments have put regulatory measures on the pioneer cryptocurrency at every step. Aryacoin aims to overcome these restrictions as a free digital currency.

1.1.4 BENEFITS OF USING ARYACOIN

Aryacoin solution offers the following benefits:
  • Real-time update: whether you’re going on a holiday or a business trip, no problem. You can access your coins all over the world.
  • Instant operations: Aryacoin makes it quite easy for you to use your digital wallet and perform various operations with it.
  • Safe and secure: all your data is stored encrypted and can only be decrypted with your private key, seed, or password.
  • Strong security: The system has no control over your wallet. You are 100% in charge of your wallet and funds.

1.1.5 ARYACOIN FEATURES

1. Anonymity
The coin provides decent level of anonymity for all its users. The users can send their transactions to any of the public nodes to be broadcasted , the transaction sent to the nodes should be signed by the private key of the sender address . This allows the users to use the coin anywhere any time , sending transactions directly to the node allows users from any place and country .
2. Real Life Usage
aryacoin’s team is continuously developing new and innovative ways to use the coins , they are currently developing exchanges where the users can exchange the coins without any fees and any restrictions . They also are currently developing other innovative technologies, which would allow users to spend our coins everywhere and anywhere.
3. Offline Exchanges
They are also working with different offline vendors which would enable them to buy and sell the coins directly to our users on a fixed/variable price this would allow easy buy/sell directly using cash . This would allow the coins to be accessible to users without any restrictions which most of the online exchanges have, also increase the value and number of users along with new ways to spend the coin. This would increase anonymity level of the
coin. In addition, introduce new users into the cryptomarket and technology. Creating a revolution, which educates people about crypto and introduce them to the crypto world, which introduces a completely new group of people into crypto and a move towards a Decentralized future!
4. Transactions
When it comes to transactions, Aryacoin embraces a chain of digital signatures, where each owner simply transfers the coin to the next person by digitally signing a hash of the previous transaction and the public key of the next owner. The recipient can then verify the signatures to confirm the chain of ownership. Importantly, Aryacoin comes with a trusted central authority that checks every transaction for double spending.
5. Business Partner with Simplex
Aryacoin is the first and only Iranian digital currency that managed to obtain a trading license in other countries.
In collaboration with the foundation and financial giant Simplex, a major cryptocurrency company that has large companies such as Binance, P2P, Changelly, etc. Aryacoin has been licensed to enter the world’s major exchanges, as well as the possibility of purchasing AYA through Credit Cards, which will begin in the second half of 2020.
Also, the possibility of purchasing Aryacoin through Visa and MasterCard credit cards will be activated simultaneously inside the Aryacoin site. plus, in less than a year, AYA will be placed next to big names such as CoinCapMarket, Coinomi, P2P, Coinpayments and many other world-class brands today.

1.1.6 WHY CHOOSE ARYACOIN?

If you want to use a cryptocurrency that allows you to keep your privacy online even when buying and selling the coins, the Aryacoin team claims that AYA is the way to go. Aryacoin is putting in the work: with more ways to buy and sell, and fixing the issues that were present in the original Bitcoin, plus pushing the boundaries with innovative solutions in cryptocurrencies. You can get started using Aryacoin (AYA) payments simply by having a CoinPayments account!

1.1.7 ARYANA CENTRALIZED EXCHANGE

Aryana, the first Iranian exchange is a unique platform with the following features:
  • The first real international Persian exchange that obtains international licenses and is listed in CoinMarketCap.
  • The first Iranian exchange that has been cooperating with a legal and European exchange for 3 years.
  • The possibility of trading in Tomans (available currency in Iran) at the user’s desired price and getting rid of the transaction prices imposed by domestic sites inside Iran.
  • There is an internal fee payment plan by Iranian domestic banks for depositing and withdrawing Tomans for Aryacoin holders in Aryana Exchange.
  • The number that you see on the monitor and in your account will be equal to the number that is transferred to your bank account without a difference of one Rial.
  • The last but not least, noting the fact that there is a trading in Tomans possibility in Aryana exchange.
Aryana Exchange is using the most powerful, fastest, and most expensive server in the world, Google Cloud Platform (GCP), which is currently the highest quality server for an Iranian site, so that professional traders do not lag behind the market even for a second.
The feature of Smart Trading Robots is one of the most powerful features for digital currency traders. Digital cryptocurrency traders are well aware of how much they will benefit from smart trading robots. In the Aryana exchange, it is possible to connect exchange user accounts to intelligent trading bots and trade even when they are offline.
The injection of $ 1 million a day in liquidity by the WhiteBite exchange to maintain and support the price of Tether and eliminate the Tether fluctuations with Bitcoin instabilities used by profiteers to become a matter of course.

1.1.8 HOW DOES ARYACOIN WORK?

Aryacoin (AYA) tries to ensure a high level of security and privacy. The team has made sure to eliminate any trading restrictions for the network users: no verification is required to carry out transactions on AYA, making the project truly anonymous, decentralized, and giving it a real use in day-to-day life. The Delayed-Proof-of-Work (dPoW) algorithm makes the Aryacoin blockchain immune to any attempts of a 51% attack. AYA defines a coin as a chain of digital signatures — each owner transfers the coin to the next owner by digitally signing the hash of the previous transaction and the public key of the next owner, and the receiver verifies the signatures and the chain of ownership.

2. ARYACOIN TECHNOLOGY

2.1 PROOF-OF-WORK

They use a proof-of-work system similar to Adam Back’s Hashcash to implement a distributed timestamp server on a peer-to-peer basis, rather than newspaper or Usenet publications. The proof-of-work involves scanning for a value that when hashed, such as with SHA-256, the hash begins with a number of zero bits. The average work required is exponential in the number of zero bits required and can be verified by executing a single hash.
For their timestamp network, they implement the proof-of-work by incrementing a nonce in the block until a value is found that gives the block’s hash the required zero bits. Once the CPU effort has been expended to make it satisfy the proof-of-work, the block cannot be changed without redoing the work. As later blocks are chained after it, the work to change the block would include redoing all the blocks after it.
The proof-of-work also solves the problem of determining representation in majority decision making. If the majority were based on one-IP-address-one-vote, it could be subverted by anyone able to allocate many IPs. Proof-of-work is essentially one-CPU-one-vote. The majority decision is represented by the longest chain, which has the greatest proof-of-work effort invested in it. If honest nodes control a majority of CPU power, the honest chain will grow the fastest and outpace any competing chains. To modify a past
block, an attacker would have to redo the proof-of-work of the block and all blocks after it, then catch up with, and surpass the work of the honest nodes.

2.2 NETWORK

The steps to run the network are as follows:
  • New transactions are broadcast to all nodes.
  • Each node collects new transactions into a block.
  • Each node works on finding a difficult proof-of-work for its block.
  • When a node finds a proof-of-work, it broadcasts the block to all nodes.
  • Nodes accept the block only if all transactions in it are valid and not already spent.
This is a very simple system that makes the network fast and scalable, while also providing a decent level of anonymity for all users. Users can send their transactions to any of the public nodes to be broadcast, and the private key of the sender’s address should sign any transaction sent to the nodes. This way, all transaction info remains strictly confidential. It also allows users to send transactions directly to the node from any place at any time and allows the transferring of huge amounts with very low fees.

2.3 AYAPAY PAYMENT SERVICES GATEWAY:

According to creators Aryacoin, the development team has succeeded in inventing a new blockchain technology for the first time in the world, which is undoubtedly a big step and great news for all digital currency enthusiasts around the world.
This new technology has been implemented on the Aryacoin AYAPAY platform and was unveiled on October 2. AYAPAY payment platform is the only payment gateway in the world that does not save money in users’ accounts and transfers incoming coins directly to any wallet address requested by the gateway owner without any additional transaction or fee.
In other similar systems or even systems such as PayPal, money is stored in the user account.

2.4 CONSENSUS ALGORITHM IN ARYACOIN

The devs introduced the Delayed-Proof-of-Work (dPoW) algorithm, which represents a hybrid consensus method that allows one blockchain to take advantage of the security provided by the hashing power of another blockchain. The AYA blockchain works on dPoW and can use such consensus methods as Proof-of-Work (PoW) or Proof-of-Stake (PoS) and join to any desired PoW blockchain. The main purpose of this is to allow the blockchain to continue operating without notary nodes on the basis of its original consensus method. In this situation, additional security will no longer be provided through the attached blockchain, but this is not a particularly significant problem. dPoW can improve the security level and reduce energy consumption for any blockchain.

2.5 DOUBLE-SPEND PROBLEM AND SOLUTION

One of the main problems in the blockchain world is that a receiver is unable to verify whether or not one of the senders did not double-spend. Aryacoin provides the solution, and has established a trusted central authority, or mint, that checks every transaction for double-spending. Only the mint can issue a new coin and all the coins issued directly from the mint are trusted and cannot be double-spent. However, such a system cannot therefore
be fully decentralized because it depends on the company running the mint, similar to a bank. Aryacoin implements a scheme where the receiver knows that the previous owners did not sign any earlier transactions. The mint is aware of all transactions including which of them arrived first. The developers used an interesting solution called the Timestamp Server, which works by taking a hash of a block of items to be ‘timestamped’ and publishing the hash. Each timestamp includes the previous timestamp in its hash, forming a chain. To modify a block, an attacker would have to redo the proof-of-work of all previous blocks, then catch up with, and surpass the work of the honest nodes. This is almost impossible, and makes the network processes more secure. The proof-of-work difficulty varies according to circumstances. Such an approach ensures reliability and high throughput.

3. ARYACOIN ROADMAP

April 2019: The launch of Aryacoin; AYA ICO, resulting in over 30BTC collected
December 2019: The launch of AYA Pay
April 2020: The successful Hamedan Hardfork, supported by all AYA exchanges, aimed at integrating the dPoW algorithm, improving the security of the AYA blockchain.
June 2020: Aryana Exchange goes live, opening more trading opportunities globally
July 2020: The enabling of our Coin Exchanger
November 2020: The implementation of Smart Contracts into the Aryacoin Ecosystem
Q1 2021: Alef B goes live (more details coming soon)

4. THE NUCYBER NETWORK COMMUNITY & SOCIAL

Website: https://aryacoin.io/
Explorer: https://explorer.aryacoin.io/
Github: https://github.com/Aryacoin/Aryacoin
Twitter: 1.1k followers https://twitter.com/AryacoinAYA
Reddit: 442 members https://github.com/nucypher
Instagram: 3.8k followers https://www.instagram.com/mrdigicoin/ Telegram: 5.9k subscribers https://t.me/AYA_Global

5. SUMMARY

Aryacoin (AYA) is a new age cryptocurrency that combines the best of the blockchain technology and strives to deliver high trading and mining standards, enabling users to make peer-to-peer decentralized transactions of electronic cash. Aryacoin is part of an ecosystem that includes payment gateway Ayapay and the Ayabank. AYA has a partnership with the Microsoft Azure cloud platform, which provides the ability to develop applications and store data on servers located in distributed data centers. The network fee for the AYA Blockchain is 0%. In Ayapay service, which has been developed by the Aryacoin team, all funds without extra fees or costs are directly forwarded to users’ wallets with technology called CloudWithdrawal. The devs team is introducing new use cases including exchanges where users will exchange AYA without any restrictions. You can buy AYA on an exchange of your choice, create an Aryacoin wallet, and store it in Guarda.

6. REFERENCES

1) https://coincodex.com/crypto/aryacoin/
2) https://www.icosandstos.com/coin/Aryacoin%20AYA/YuXO60UPF3
3) https://www.publish0x.com/iran-and-cryptocurrency/a-brief-introduction-of-aryacoin-first-ever-iranian-cryptocu-xoldlom
4) https://techround.co.uk/cryptocurrency/aryacoin-the-digital-currency-created-by-iranians/
5) https://bitcoinexchangeguide.com/aryacoin/
6) https://blog.coinpayments.net/coin-spotlight/aryacoin
7) https://guarda.com/aryacoin-wallet
submitted by CoinEx_Institution to Coinex [link] [comments]

$51 Live payment proof  New bitcoin mining site  Bit-atm ... Bitcoins minen in je achtertuin: geen probleem! - YouTube The Big Problem with Bitcoin Bitcoin Mining in 4 Minutes - Computerphile - YouTube Bitcoin 51% Attack - Clearly Explained

The threat of a 51 percent attack became very real for many Bitcoin owners this week, when the world’s largest Bitcoin mining pool, GHash.IO, flirted with, and may have even surpassed, 51 percent. GHash.IO is one of the largest Bitcoin mining pools, which entered the mining market in July 2013 and contributes to over 30% of the overall hashing power making it the #1 pool in the Bitcoin network. GHash.IO charges 0% pool fee and provides 24/7 technical support for its users. October 2016, GHash.IO pool officially closed. The team behind GHash.IO offers development of custom-built pools ... Cryptocurrencies like Bitcoin, Litecoin, and Dash are facing a growing problem. That being, rising energy costs and usage, the centralization of mining. Not only that, but also a company that has a virtual monopoly on nearly all ASIC mining hardware. Sobald Eve TX1 an das Bitcoin-Netzwerk geschickt hat, setzt sie ihre eigenen Mining-Computer ein und schürft einen Block, der statt TX1 nur TX2 enthält. Wenn Eve mit ihren Mining-Computern über deutlich mehr als die Hälfte der Hashrate verfügt, wird sie wahrscheinlich den nächsten Block vor dem restlichen Bitcoin-Netzwerk finden. Damit ist nur ihr konstruierter Block gültig und die ... Today we explore just how much energy Bitcoin mining really uses and 5 possible ways to reduce or offset its power consumption. In 2011, Google revealed that it used enough energy from fossil fuels to continuously power 200,000 homes, which is about one quarter the output of a nuclear power plant.

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$51 Live payment proof New bitcoin mining site Bit-atm ...

Business Insider UK spoke with University of Cambridge Research Fellow Garrick Hileman about cryptocurrency mining and the potential problems that it could bring in the future. He explains that ... The Big Problem with Bitcoin Crypto Daily. Loading... Unsubscribe from Crypto Daily? ... Bitcoin Documentary Crypto Currencies Bitcoins Blockchain Digital Currency Money Gold ... Bitcoin 51% Attack - Clearly Explained In this video I explain what a 51% attack is in the world of blockchain & cryptocurrency. Did you enjoy this video? SUBSCRIBE for more: https://www.youtube ... When a Bitcoin Miner Mines, what is happening? Dr Mike Pound exposes the process.. note: at 3:39 Mike mentions a Bitcoin is mined every ten minutes when it i... What it really takes to mine a Bitcoin in 10 Minutes. Firstly I'll show you a special free method to mine Bitcoin and send funds directly to your wallet in 1...

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