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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
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[ANN][ANDROID MINING][AIRDROP] NewEnglandcoin: Scrypt RandomSpike

New England
New England 6 States Songs: https://www.reddit.com/newengland/comments/er8wxd/new_england_6_states_songs/
NewEnglandcoin
Symbol: NENG
NewEnglandcoin is a clone of Bitcoin using scrypt as a proof-of-work algorithm with enhanced features to protect against 51% attack and decentralize on mining to allow diversified mining rigs across CPUs, GPUs, ASICs and Android phones.
Mining Algorithm: Scrypt with RandomSpike. RandomSpike is 3rd generation of Dynamic Difficulty (DynDiff) algorithm on top of scrypt.
1 minute block targets base difficulty reset: every 1440 blocks subsidy halves in 2.1m blocks (~ 2 to 4 years) 84,000,000,000 total maximum NENG 20000 NENG per block Pre-mine: 1% - reserved for dev fund ICO: None RPCPort: 6376 Port: 6377
NewEnglandcoin has dogecoin like supply at 84 billion maximum NENG. This huge supply insures that NENG is suitable for retail transactions and daily use. The inflation schedule of NengEnglandcoin is actually identical to that of Litecoin. Bitcoin and Litecoin are already proven to be great long term store of value. The Litecoin-like NENG inflation schedule will make NewEnglandcoin ideal for long term investment appreciation as the supply is limited and capped at a fixed number
Bitcoin Fork - Suitable for Home Hobbyists
NewEnglandcoin core wallet continues to maintain version tag of "Satoshi v0.8.7.5" because NewEnglandcoin is very much an exact clone of bitcoin plus some mining feature changes with DynDiff algorithm. NewEnglandcoin is very suitable as lite version of bitcoin for educational purpose on desktop mining, full node running and bitcoin programming using bitcoin-json APIs.
The NewEnglandcoin (NENG) mining algorithm original upgrade ideas were mainly designed for decentralization of mining rigs on scrypt, which is same algo as litecoin/dogecoin. The way it is going now is that NENG is very suitable for bitcoin/litecoin/dogecoin hobbyists who can not , will not spend huge money to run noisy ASIC/GPU mining equipments, but still want to mine NENG at home with quiet simple CPU/GPU or with a cheap ASIC like FutureBit Moonlander 2 USB or Apollo pod on solo mining setup to obtain very decent profitable results. NENG allows bitcoin litecoin hobbyists to experience full node running, solo mining, CPU/GPU/ASIC for a fun experience at home at cheap cost without breaking bank on equipment or electricity.
MIT Free Course - 23 lectures about Bitcoin, Blockchain and Finance (Fall,2018)
https://www.youtube.com/playlist?list=PLUl4u3cNGP63UUkfL0onkxF6MYgVa04Fn
CPU Minable Coin Because of dynamic difficulty algorithm on top of scrypt, NewEnglandcoin is CPU Minable. Users can easily set up full node for mining at Home PC or Mac using our dedicated cheetah software.
Research on the first forked 50 blocks on v1.2.0 core confirmed that ASIC/GPU miners mined 66% of 50 blocks, CPU miners mined the remaining 34%.
NENG v1.4.0 release enabled CPU mining inside android phones.
Youtube Video Tutorial
How to CPU Mine NewEnglandcoin (NENG) in Windows 10 Part 1 https://www.youtube.com/watch?v=sdOoPvAjzlE How to CPU Mine NewEnglandcoin (NENG) in Windows 10 Part 2 https://www.youtube.com/watch?v=nHnRJvJRzZg
How to CPU Mine NewEnglandcoin (NENG) in macOS https://www.youtube.com/watch?v=Zj7NLMeNSOQ
Decentralization and Community Driven NewEnglandcoin is a decentralized coin just like bitcoin. There is no boss on NewEnglandcoin. Nobody nor the dev owns NENG.
We know a coin is worth nothing if there is no backing from community. Therefore, we as dev do not intend to make decision on this coin solely by ourselves. It is our expectation that NewEnglandcoin community will make majority of decisions on direction of this coin from now on. We as dev merely view our-self as coin creater and technical support of this coin while providing NENG a permanent home at ShorelineCrypto Exchange.
Twitter Airdrop
Follow NENG twitter and receive 100,000 NENG on Twitter Airdrop to up to 1000 winners
Graphic Redesign Bounty
Top one award: 90.9 million NENG Top 10 Winners: 500,000 NENG / person Event Timing: March 25, 2019 - Present Event Address: NewEnglandcoin DISCORD at: https://discord.gg/UPeBwgs
Please complete above Twitter Bounty requirement first. Then follow Below Steps to qualify for the Bounty: (1) Required: submit your own designed NENG logo picture in gif, png jpg or any other common graphic file format into DISCORD "bounty-submission" board (2) Optional: submit a second graphic for logo or any other marketing purposes into "bounty-submission" board. (3) Complete below form.
Please limit your submission to no more than two total. Delete any wrongly submitted or undesired graphics in the board. Contact DISCORD u/honglu69#5911 or u/krypton#6139 if you have any issues.
Twitter Airdrop/Graphic Redesign bounty sign up: https://goo.gl/forms/L0vcwmVi8c76cR7m1
Milestones
Roadmap
NENG v1.4.0 Android Mining, randomSpike Evaluation https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/NENG_2020_Q3_report/NENG_2020_Q3_report.pdf
RandomSpike - NENG core v1.3.0 Hardfork Upgrade Proposal https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/2020Q1_Report/Scrypt_RandomSpike_NENGv1.3.0_Hardfork_Proposal.pdf
NENG Security, Decentralization & Valuation
https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/2019Q2_report/NENG_Security_Decentralization_Value.pdf
Whitepaper v1.0 https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/whitepaper_v1.0/NENG_WhitePaper.pdf
DISCORD https://discord.gg/UPeBwgs
Explorer
http://www.findblocks.com/exploreNENG http://86.100.49.209/exploreNENG http://nengexplorer.mooo.com:3001/
Step by step guide on how to setup an explorer: https://github.com/ShorelineCrypto/nengexplorer
Github https://github.com/ShorelineCrypto/NewEnglandCoin
Wallet
Android with UserLand App (arm64/armhf), Chromebook (x64/arm64/armhf): https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0.5
Linux Wallet (Ubuntu/Linux Mint, Debian/MX Linux, Arch/Manjaro, Fedora, openSUSE): https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0.3
MacOS Wallet (10.11 El Capitan or higher): https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0.2
Android with GNUroot on 32 bits old Phones (alpha release) wallet: https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0
Windows wallet: https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.3.0.1
addnode ip address for the wallet to sync faster, frequently updated conf file: https://github.com/ShorelineCrypto/cheetah_cpumineblob/mastenewenglandcoin.conf-example
How to Sync Full Node Desktop Wallet https://www.reddit.com/NewEnglandCoin/comments/er6f0q/how_to_sync_full_node_desktop_wallet/
TWITTER https://twitter.com/newenglandcoin
REDDIT https://www.reddit.com/NewEnglandCoin/
Cheetah CPU Miner Software https://github.com/ShorelineCrypto/cheetah_cpuminer
Solo Mining with GPU or ASIC https://bitcointalk.org/index.php?topic=5027091.msg52187727#msg52187727
How to Run Two Full Node in Same Desktop PC https://bitcointalk.org/index.php?topic=5027091.msg53581449#msg53581449
ASIC/GPU Mining Pools Warning to Big ASIC Miners Due to DynDiff Algo on top of Scrypt, solo mining is recommended for ASIC/GPU miners. Further more, even for mining pools, small mining pool will generate better performance than big NENG mining pool because of new algo v1.2.x post hard fork.
The set up configuration of NENG for scrypt pool mining is same as a typical normal scrypt coin. In other word, DynDiff on Scrypt algo is backward compatible with Scrypt algo. Because ASIC/GPU miners rely on CPU miners for smooth blockchain movement, checkout bottom of "Latest News" section for A WARNING to All ASIC miners before you decide to dump big ASIC hash rate into NENG mining.
(1) Original DynDiff Warning: https://bitcointalk.org/index.php?topic=5027091.msg48324708#msg48324708 (2) New Warning on RandomSpike Spike difficulty (244k) introduced in RandomSpike served as roadblocks to instant mining and provide security against 51% attack risk. However, this spike difficulty like a roadblock that makes big ASIC mining less profitable. In case of spike block to be mined, the spike difficulty immediately serve as base difficulty, which will block GPU/ASIC miners effectively and leave CPU cheetah solo miners dominating mining almost 100% until next base difficulty reset.
FindBlocks http://findblocks.com/
CRpool http://crpool.xyz/
Cminors' Pool http://newenglandcoin.cminors-pool.com/
SPOOL https://spools.online/
Exchange
📷
https://shorelinecrypto.com/
Features: anonymous sign up and trading. No restriction or limit on deposit or withdraw.
The trading pairs available: NewEnglandcoin (NENG) / Dogecoin (DOGE)
Trading commission: A round trip trading will incur 0.10% trading fees in average. Fees are paid only on buyer side. buy fee: 0.2% / sell fee: 0% Deposit fees: free for all coins Withdraw fees: ZERO per withdraw. Mining fees are appointed by each coin blockchain. To cover the blockchain mining fees, there is minimum balance per coin per account: * Dogecoin 2 DOGE * NewEnglandcoin 1 NENG
Latest News Aug 30, 2020 - NENG v1.4.0.5 Released for Android/Chromebook Upgrade with armhf, better hardware support https://bitcointalk.org/index.php?topic=5027091.msg55098029#msg55098029
Aug 11, 2020 - NENG v1.4.0.4 Released for Android arm64 Upgrade / Chromebook Support https://bitcointalk.org/index.php?topic=5027091.msg54977437#msg54977437
Jul 30, 2020 - NENG v1.4.0.3 Released for Linux Wallet Upgrade with 8 Distros https://bitcointalk.org/index.php?topic=5027091.msg54898540#msg54898540
Jul 21, 2020 - NENG v1.4.0.2 Released for MacOS Upgrade with Catalina https://bitcointalk.org/index.php?topic=5027091.msg54839522#msg54839522
Jul 19, 2020 - NENG v1.4.0.1 Released for MacOS Wallet Upgrade https://bitcointalk.org/index.php?topic=5027091.msg54830333#msg54830333
Jul 15, 2020 - NENG v1.4.0 Released for Android Mining, Ubuntu 20.04 support https://bitcointalk.org/index.php?topic=5027091.msg54803639#msg54803639
Jul 11, 2020 - NENG v1.4.0 Android Mining, randomSpike Evaluation https://bitcointalk.org/index.php?topic=5027091.msg54777222#msg54777222
Jun 27, 2020 - Pre-Announce: NENG v1.4.0 Proposal for Mobile Miner Upgrade, Android Mining Start in July 2020 https://bitcointalk.org/index.php?topic=5027091.msg54694233#msg54694233
Jun 19, 2020 - Best Practice for Futurebit Moonlander2 USB ASIC on solo mining mode https://bitcointalk.org/index.php?topic=5027091.msg54645726#msg54645726
Mar 15, 2020 - Scrypt RandomSpike - NENG v1.3.0.1 Released for better wallet syncing https://bitcointalk.org/index.php?topic=5027091.msg54030923#msg54030923
Feb 23, 2020 - Scrypt RandomSpike - NENG Core v1.3.0 Relased, Hardfork on Mar 1 https://bitcointalk.org/index.php?topic=5027091.msg53900926#msg53900926
Feb 1, 2020 - Scrypt RandomSpike Proposal Published- NENG 1.3.0 Hardfork https://bitcointalk.org/index.php?topic=5027091.msg53735458#msg53735458
Jan 15, 2020 - NewEnglandcoin Dev Team Expanded with New Kickoff https://bitcointalk.org/index.php?topic=5027091.msg53617358#msg53617358
Jan 12, 2020 - Explanation of Base Diff Reset and Effect of Supply https://www.reddit.com/NewEnglandCoin/comments/envmo1/explanation_of_base_diff_reset_and_effect_of/
Dec 19, 2019 - Shoreline_tradingbot version 1.0 is released https://bitcointalk.org/index.php?topic=5121953.msg53391184#msg53391184
Sept 1, 2019 - NewEnglandcoin (NENG) is Selected as Shoreline Tradingbot First Supported Coin https://bitcointalk.org/index.php?topic=5027091.msg52331201#msg52331201
Aug 15, 2019 - Mining Update on Effect of Base Difficulty Reset, GPU vs ASIC https://bitcointalk.org/index.php?topic=5027091.msg52169572#msg52169572
Jul 7, 2019 - CPU Mining on macOS Mojave is supported under latest Cheetah_Cpuminer Release https://bitcointalk.org/index.php?topic=5027091.msg51745839#msg51745839
Jun 1, 2019 - NENG Fiat project is stopped by Square, Inc https://bitcointalk.org/index.php?topic=5027091.msg51312291#msg51312291
Apr 21, 2019 - NENG Fiat Project is Launched by ShorelineCrypto https://bitcointalk.org/index.php?topic=5027091.msg50714764#msg50714764
Apr 7, 2019 - Announcement of Fiat Project for all U.S. Residents & Mobile Miner Project Initiation https://bitcointalk.org/index.php?topic=5027091.msg50506585#msg50506585
Apr 1, 2019 - Disclosure on Large Buying on NENG at ShorelineCrypto Exchange https://bitcointalk.org/index.php?topic=5027091.msg50417196#msg50417196
Mar 27, 2019 - Disclosure on Large Buying on NENG at ShorelineCrypto Exchange https://bitcointalk.org/index.php?topic=5027091.msg50332097#msg50332097
Mar 17, 2019 - Disclosure on Large Buying on NENG at ShorelineCrypto Exchange https://bitcointalk.org/index.php?topic=5027091.msg50208194#msg50208194
Feb 26, 2019 - Community Project - NewEnglandcoin Graphic Redesign Bounty Initiated https://bitcointalk.org/index.php?topic=5027091.msg49931305#msg49931305
Feb 22, 2019 - Dev Policy on Checkpoints on NewEnglandcoin https://bitcointalk.org/index.php?topic=5027091.msg49875242#msg49875242
Feb 20, 2019 - NewEnglandCoin v1.2.1 Released to Secure the Hard Kork https://bitcointalk.org/index.php?topic=5027091.msg49831059#msg49831059
Feb 11, 2019 - NewEnglandCoin v1.2.0 Released, Anti-51% Attack, Anti-instant Mining after Hard Fork https://bitcointalk.org/index.php?topic=5027091.msg49685389#msg49685389
Jan 13, 2019 - Cheetah_CpuMiner added support for CPU Mining on Mac https://bitcointalk.org/index.php?topic=5027091.msg49218760#msg49218760
Jan 12, 2019 - NENG Core v1.1.2 Released to support MacOS OSX Wallet https://bitcointalk.org/index.php?topic=5027091.msg49202088#msg49202088
Jan 2, 2019 - Cheetah_Cpuminer v1.1.0 is released for both Linux and Windows https://bitcointalk.org/index.php?topic=5027091.msg49004345#msg49004345
Dec 31, 2018 - Technical Whitepaper is Released https://bitcointalk.org/index.php?topic=5027091.msg48990334#msg48990334
Dec 28, 2018 - Cheetah_Cpuminer v1.0.0 is released for Linux https://bitcointalk.org/index.php?topic=5027091.msg48935135#msg48935135
Update on Dec 14, 2018 - NENG Blockchain Stuck Issue https://bitcointalk.org/index.php?topic=5027091.msg48668375#msg48668375
Nov 27, 2018 - Exclusive for PC CPU Miners - How to Steal a Block from ASIC Miners https://bitcointalk.org/index.php?topic=5027091.msg48258465#msg48258465
Nov 28, 2018 - How to CPU Mine a NENG block with window/linux PC https://bitcointalk.org/index.php?topic=5027091.msg48298311#msg48298311
Nov 29, 2018 - A Warning to ASIC Miners https://bitcointalk.org/index.php?topic=5027091.msg48324708#msg48324708
Disclosure: Dev Team Came from ShorelineCrypto, a US based Informatics Service Business offering Fee for service for Coin Creation, Coin Exchange Listing, Blockchain Consulting, etc.
submitted by honglu69 to NewEnglandCoin [link] [comments]

FAQ for Beginners

What is Bitcoin?

Bitcoin is scarce, decentralized, and global digital money that cannot be censored.

Quick Advice

  • Do not respond to strangers messaging you with investment advice or offers and read how to avoid being scammed from the posts below.
  • Do not invest in Bitcoin until you do basic research, paid off all high interest debt, and have a emergency savings account of a stable fiat currency.
  • If investing do not expect to get rich quickly. You should expect to wait at least 1-2 years before taking profits. Bitcoin is currently very volatile. In the interim spend and replace Bitcoin because its a useful currency.
  • Beginners should avoid all mining and day trading until at least very familiar with Bitcoin. Mining is very professional(You cannot efficiently mine with your computer and need to buy special ASIC machines) and most people lose money day trading.
  • Never store your Bitcoins on an exchange or web wallet. Buy your bitcoins and withdraw it to your personal wallet where you actually own them instead of IOUs. Services like Robinhood and Revoult should be avoided because you cannot withdraw or use Bitcoin.
  • Make sure you make a backup of your wallet(software holding keys to your BTC) and preferably keep it offline and physical and private. Typically 12 to 24 words you write down on paper or metal. This onetime backup will restore all your keys, addresses , and Bitcoins on a new wallet if you lose your old wallet.
  • Beginners should avoid altcoins, tokens, and ICOs at least initially until they learn about Bitcoin. Most of these are scams and you should be familiar with the basics first. Bitcoin is referred to as BTC or XBT.

Exchanges Requiring ID Verification

Bitcoin = BTC or XBT on exchanges
Exchange Buy fee* Withdraw BTC Notes
Cash App Sliding ~2.2% to 1% 0 BTC Instant Withdraw, USA only
Coinbase Debit3.99% ACH1.49% 1-4USD ~7Day hold BTC withdraw
CoinbasePro 0.5% 1-4USD ~7Day hold free ACH Deposit or €0.15 EUR SEPA fee
Gemini 1.49% to 0.25%ATrader 0 BTC 10 free BTC withdraws w/ActiveTrader
Kraken 0.16% 0.0005 BTC Deposit Fiat=USwire+5USD or SEPA free
Bitstamp 0.50% 0.0005 BTC Deposit Fiat=0 SEPA or 5% card fee
Note: Exchanges all have unique market prices and spreads so fees alone will not tell you the best rates. Best way is to directly compare the rates between exchanges. Buy fees above are for normal trading volumes. Verification and hold times can vary based upon lack of history, verification level or credit.
More exchanges per location
For a secure Decentralized Exchange (DEX) use https://bisq.network

Recommended Wallets

Best wallets for securing small amounts of BTC
electrum For Desktop and Android
Pros= Great Desktop and Android wallet with advanced functionality like coin control
Cons= UX is not as polished as some other wallets, make sure you only upgrade from official sources like play store or https://electrum.org as malicious servers or adverts can tell you to upgrade malware from other sites
https://www.youtube.com/watch?v=E4EhZg5QslI
Phoenix LN wallets for Android
Pros- Lightning network integration(as well as onchain) allowing you to spend with LN merchants for instant confirmations and much lower fees. Easiest lightning wallet to use
Cons- Lightning is still somewhat experimental and less merchants accept it.
https://phoenix.acinq.co/
https://www.youtube.com/watch?v=Cx5PK1H5OR0
Breez LN wallet for Android and IOS
https://breez.technology
https://www.youtube.com/watch?v=t_4b-y4T8bY
Pros- Lightning network integration(as well as onchain) allowing you to spend with LN merchants for instant confirmations and much lower fees
Cons- Lightning is still somewhat experimental and less merchants accept it.
Other Lightning wallets - http://lightningnetworkstores.com/wallets
Blockstream Green Wallet IOS and android wallet
Pros- Great UX, easy hardware wallet and full node integration, RBF, HW wallet support and advanced 2fa options Cons- Until single signature is released 2 of 2 multisig means that one must depend upon blockstream’s server for tx signing. Other light wallets are dependent upon other servers as well but light wallets like electrum allow you to swap servers.
https://www.youtube.com/watch?v=uO3Zi9D5b0Y
https://blockstream.com/green/
Securing Larger amounts of Bitcoin
ledger nano S wallet = ~68 USD https://shop.ledger.com/products/ledger-nano-s
https://www.youtube.com/watch?v=YI1OntWB7wc
https://www.youtube.com/watch?v=AGe2GgfkO64
trezor one wallet = ~54 USD https://shop.trezor.io
https://www.youtube.com/watch?v=pT1j_kbZBEo
Trezor Model T = ~164 USD https://shop.trezor.io
https://www.youtube.com/watch?v=i3BIo5Ac_n4
Cold Card Hardware wallet = 119.97 USD https://store.coinkite.com/store/coldcard
https://www.youtube.com/watch?v=kocEpndQcsg
https://www.youtube.com/watch?v=f8dBNrlwJ0k
Digital Bitbox 02 = 109 USD https://shiftcrypto.ch/bitbox02/
https://www.youtube.com/watch?v=tdP_7LgZw7s
https://www.youtube.com/watch?v=z7nRq2OEhiw
https://www.youtube.com/watch?v=6D4FgJo3j64
Best Advanced Bitcoin Wallet= Bitcoin Core
Pros= Great privacy and security
Cons= UX is for more experienced users, takes ~week to sync and requires ~5GB minimum disk space if prunned
https://bitcoincore.org/en/download/
Best High Privacy Bitcoin Wallet = Wasabi
Pros= Best Privacy with Chaumian CoinJoin built in
Cons= mixing coins costs more fees and for more advanced users
https://www.wasabiwallet.io/#download
https://www.youtube.com/watch?v=ECQHAzSckK0
https://www.youtube.com/watch?v=zPKpC9cRcZo&list=PLmoQ11MXEmahCG1nkbKK6DiAwVx9giJCi
https://www.youtube.com/watch?v=y8wQK-Ndl3Q&list=PLPj3KCksGbSaEmjU0sywoTYDVYYSu8LsS

Further Resources

https://www.lopp.net/bitcoin-information.html
https://www.lopp.net/lightning-information.html
https://10hoursofbitcoin.com/
http://bitcoinrabbithole.org/
https://bitcoin-resources.com
https://www.bitcoin101.club
https://21lessons.com
submitted by bitusher to BitcoinBeginners [link] [comments]

Bylls — the Canadian Bitcoin bill payment service by Bull Bitcoin — celebrates its 6th birthday

I sometimes find it hard to believe that it has already been 6 years since the public launch of Bylls on January 13 2014. What started out as a simple and humble “garage startup”, the world’s first Bitcoin bill payment service, evolved into so much more.
Bylls eventually became the company that people know today as Bull Bitcoin, and it is from Bylls’ UASF advocacy that sprouted the Cyphernode open-source project. I also like to think of Bylls as a “bitcoin culture” institution that served as the vanguard of the Bitcoin Maximalist and Cypherpunk movements within the Bitcoin exchange and payments industry.
Happy Birthday Bylls! 🎂

What is Bylls?

For those of you who don’t know about Bylls, here’s a short summary:

Short history of world’s first Bitcoin bill payment service

Bylls was founded in 2013 by Eric Spano, a Montreal entrepreneur part of the original Bitcoin Embassy team. Eric, one of my earliest and most influential mentors, is a true Bitcoin OG. Check out his 2014 Bitcoin Ted Talk or his 2019 Podcast on Tales From the Crypt which describes in great detail the inception of Bylls.
When Bylls was launched, I was Public Affairs Director at the Bitcoin Embassy, the world’s first physical Bitcoin hub (a 14,000 square feet building downtown Montreal). Bylls was effectively a one-man operation, with Eric doing pretty much everything himself. I wasn’t directly involved with the company, but Bylls was one of the startups in the Embassy’s incubator program, so I was helping out in various ways. My first “public appearance” in the Bitcoin industry was actually to man the Bylls booth at the Toronto Bitcoin Expo in 2014!
In 2015, Eric was offered a huge career opportunity that he couldn’t accept without stepping down from running Bylls. It was to me an inconceivable tragedy for Bitcoin to let Bylls quitely close down. For the past 2 years, whenever somebody asked me “what can you do with Bitcoin?”, I would always reply “well, for starters, you can pay all your bills in Canada, even your taxes and your credit card”. What was I going to say now?
I had just founded my company Satoshi Portal Inc. with the aim of developing a non-custodial Bitcoin exchange (which eventually became Bull Bitcoin). And so, I acquired Bylls from Eric and it immediately became the focus of all my energy. For the first year, our team consisted of only 2 people including our lead developer Arthur which is still working on Bylls features to this day. From the beginning until today, we are still 100% self-funded. We grew organically and slowly. My philosophy on entrepreneurship and startup scaling is articulated in this medium post.It has been an incredibly intense journey. I cannot think of a more challenging professional experience than being a startup founder and entrepreneur in the Bitcoin industry. The number of Bitcoin startups that have perished since is a stark reminder. Some of them sank quietly, but many went down in flames taking down their users with them. The fact that Bylls is still standing — without VC funding and with its reputation intact — is my proudest achievement.
Over the past 4 years. we completely redesigned the software, continuously adding new features, but the core of the service remained the same. Most importantly, we added the ability for users to pay any individual or business in Canada by creating a personal biller from their bank details. Previously, they were limited to Bylls’ biller list of around 9000 billers.
One of the defining moments in the history of Bylls was UASF. Bylls was one of the first Bitcoin companies to support BIP-148 for the activation of Segwit (second after Bitconic). Not only that, but we were the first to run a public BIP-148 block explorer and public UASF electrum server. We had done a “seppuku pledge” regarding BIP-148, meaning that we would only accept coins from the UASF segwit chain and would pay the Bitcoin market price for them. If UASF had failed, we would not have survived. This cemented our ideology of “skin-in-the-game”. We would never compromise on our values, no matter the cost. Our policy on forks (2017) was described here. But the jist of it is:
Satoshi Portal is a Bitcoin-only company and does not conduct any transaction in any altcoin, including altcoins that are the result of a fork of the Bitcoin blockchain and which can be spent with Bitcoin private keys. This includes, but is not limited to, the coins commonly referred to as BCash, Segwit2X, BGold, Clams and Lumens.We strongly oppose the “New York Agreement” and will under no circumstance ever recognize the Segwit2X blockchain (and BTC1 client) as Bitcoin, regardless of market response or hashing power. In the unlikely event that an overwhelming majority of the Bitcoin ecosystem migrates to the Segwit2X blockchain, Satoshi Portal will continue nevertheless to support the Bitcoin blockchain.
Following the UASF/NO2X “war” in 2017, we devoted a large prortion of ressources to building Cyphernode, an open-source project that makes it very easy for startups to build and deploy Bitcoin applies without any third-parties, using exclusively their own full nodes. We are still developing this project today and plan on actively maintaining it in the future.
It is also worth noting that Bylls has never accepted any altcoins and was one of the first company to pledge never to accept altcoins in the future, leading to what became the “Bitcoin-Only” movement. We were also the first Bitcoin exchange and payment processing company, to our knowledge, that has integrated coinjoin as part of its processes.

Unbanking yourself with Bylls

The coolest feature of Bylls is that you can pay pretty much all your expenses with Bitcoin without needing to go through a bank account. In Canada, you can obtain a credit card without having it linked to a bank account. In 2016, the last of my personal bank accounts was closed due to my activities in the Bitcoin industry. I decided not apply at another bank and try the experiment of living completely unbanked. I’m happy to report it was a success, and serves as a powerful testament for the use-cases provided by Bylls.
I really like the idea of not owning any fiat. You can pay pretty much all daily expenses with a credit card, and pay back the debt with Bitcoin. Of course you have fiat-denominated debts which conveniently tends to diminish in price over time.
You can withdraw cash from a credit card and pay it off instantly with Bylls, so you can get access to cash at any time, in any country across the world, without having a bank account. The only inconvenience is the cash advance fee.
When you have to pay larger amounts such as rent or whatever services don’t accept cash or credit card, you can find the biller in the Bylls list or ask the recipient for his banking details, the same as you would for a wire transfer.

The future of Bylls

Many people ask us if we intend to expand outside of Canada. The answer is, unequivocally, no. We will always be a Canada-only, Bitcoin-only company. That doesn’t mean that we stop working hard to improve our services. We will continue to be the first to integrate the cutting-edge Bitcoin technologies that
Here is are some of the features you can expect in 2020:
Thanks for reading! 🎂
Yours truly,
Francis
Original post here: https://medium.com/bull-bitcoin/bylls-the-canadian-bitcoin-bill-payment-service-by-bull-bitcoin-celebrates-its-6th-birthday-ef6d22acdf2a
submitted by FrancisPouliot to BitcoinCA [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

What is Bitcoin? Why does it have value? What's the point of all this anyway?

Bitcoin: a Peer-to-peer Electronic Cash System

Abstract.
A purely peer-to-peer version of electronic cash would allow online payments to be sent directly from one party to another without going through a financial institution. Digital signatures provide part of the solution, but the main benefits are lost if a trusted third party is still required to prevent double-spending. We propose a solution to the double-spending problem using a peer-to-peer network. The network timestamps transactions by hashing them into an ongoing chain of hash-based proof-of-work, forming a record that cannot be changed without redoing the proof-of-work. The longest chain not only serves as proof of the sequence of events witnessed, but proof that it came from the largest pool of CPU power. As long as a majority of CPU power is controlled by nodes that are not cooperating to attack the network, they'll generate the longest chain and outpace attackers. The network itself requires minimal structure. Messages are broadcast on a best effort basis, and nodes can leave and rejoin the network at will, accepting the longest proof-of-work chain as proof of what happened while they were gone.
  1. Introduction
Commerce on the Internet has come to rely almost exclusively on financial institutions serving as trusted third parties to process electronic payments. While the system works well enough for most transactions, it still suffers from the inherent weaknesses of the trust based model. Completely non-reversible transactions are not really possible, since financial institutions cannot avoid mediating disputes. The cost of mediation increases transaction costs, limiting the minimum practical transaction size and cutting off the possibility for small casual transactions, and there is a broader cost in the loss of ability to make non-reversible payments for non- reversible services. With the possibility of reversal, the need for trust spreads. Merchants must be wary of their customers, hassling them for more information than they would otherwise need. A certain percentage of fraud is accepted as unavoidable. These costs and payment uncertainties can be avoided in person by using physical currency, but no mechanism exists to make payments over a communications channel without a trusted party.
What is needed is an electronic payment system based on cryptographic proof instead of trust, allowing any two willing parties to transact directly with each other without the need for a trusted third party. Transactions that are computationally impractical to reverse would protect sellers from fraud, and routine escrow mechanisms could easily be implemented to protect buyers. In this paper, we propose 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.
edit: in case it isn't self evident
the cashlike use case - two willing parties transacting directly with one another in hard currency - is the disruptive use case because it completely cuts out the existing financial system
In contrast, "storing value" - where you go to an exchange and convert dollars into Bitcoins that you later sell back for more dollars - is completely non disruptive to anything. It changes nothing and threatens nobody because it leaves everyone still completely dependent on the existing financial system.
Real Bitcoin - the disruptive Bitcoin with the potential to change the world - is the one that enables the cashlike use case where any two willing parties can transact directly with one another with no intermediary.
submitted by jessquit to btc [link] [comments]

[Weekly Report] LivesOne's Choice

[Weekly Report] LivesOne's Choice
Dear friends of LivesOne,
China official's greenlight to Chinese companies to innovate more using blockchain in October last year has been crucial in the development of the technology in the country. Consequently, Chinese companies have embraced blockchain, with the major tech giants leading the pack. In March, Beijing has announced that it will implement blockchain invoice to reduce costs and make it easier for the tax payers to authenticate the invoices. Beijing will rely on the immutable nature of the blockchain to enhance transparency for its tax payers.
LivesOne always believes that blockchain is a kind of epoch-making technology, which solves the problems of authenticity and security in the traditional Internet mode, improves the ability of password anti-cracking and prevents records from being tampered with.
LivesOne has been widely recognized by members of the BSV community in cooperation with BSV in the past six months. The exchange BSV event has accelerated the integration of the two communities.
Recently, there are still many community members asking why not choose BTC or BCH with longer development time, and finally choose BSV? I will compare the parameters among the three public chains now.
The technological metrics of the three Bitcoin blockchains
Here are the technological metrics of the following three Bitcoin blockchains that share the same genesis block and proof of work mining algorithm required by miners to secure the network.

https://preview.redd.it/1ybn5g0daso41.png?width=809&format=png&auto=webp&s=4ccc10db2e4dacbb53c3a773b5fd968d543a96a9
Bitcoin SV (BSV) wins not only in all technical capabilities, but judging by the metrics from the most recent month of February it shows that it is the most frequently used and remains the cheapest by far.
Why is BSV relatively better?
BTC Core only allows about six megabytes of data per hour across the network. The scripting language has been truncated and transaction malleability has been removed. As such, BTC is not even attempting to compete in this arena, so it is not a consideration for data or payment usage at a useful scale.
BCH was a promising project for about a year, but the introduction of Canonical Transaction Ordering (CTOR) and Schnorr Signatures has removed its functionality as a reliable timestamp server and bitcoin-style chain of digital signatures. With the further loss of malleability, many of its capabilities in higher level deployment of applications is also reduced. The developers replaced some of those functions with new Op_codes that work differently, but the use-cases have been very specifically targeted at payment functions, and the Bitcoin Cash community has eschewed anything to do with data services. So it is hard to estimate where the project is even attempting to move long term.
BSV has completed Genesis and is working on Teranode to prepare for expansion to TB size or even more blocks. BSV is no longer competing with other blockchains to capture data on the chain and is committed to subverting all existing business models in the world.
The Superlatives of BSV
  • No Block Size Limit: The only limit to the number of transactions per block is the ingenuity of miners to attempt to mine and propagate blocks to the network.
  • Higher Data Limits: Data per block is unbounded, and the data per transaction is best-in-class too!
  • Network Topology: Nodes are miners, and any node that is not contributing more than it is taking from the network will get kicked off eventually. Incentives choose which nodes thrive, and the only nodes that thrive are those that cooperate best with the network by bringing the hardest competition. Every other network has an altruistic view of nodes, and that altruism signals their doom.
  • Legal Compliance: Bitcoin SV is the only chain in compliance with the protocols of the bitcoin white paper without encumbrances or compliance issues in regard to laws pertaining to digital signatures, currency issuance, securities/equities and other regulations around token issuance and proof of work.
BSV is set in stone with unlimited scaling abilities and adopting the fixed protocol. LivesOne will follow the BSV consensus and work together with BSV. Let's look forward to it.

Symbiosism Economy Foundation
Mar25, 2020
submitted by LivesoneToken to LivesOne [link] [comments]

Are You Up-To-Date On Your Phishing Scams?

This was sent a week ago, and I just found it in my spam folder today (well past the 72 hour deadline). This is a new one on me. I do regular security updates on all my devices. And no, I didn't click on any of the links.
I wonder if this has any correlation with those videos I posted on PornHub two weeks ago...
Content appear as followed (with the inclusion of my commentary if you need a laugh at how bad these scams are getting, and the exclusion of my full email):
"
Subject: Undelivered Mail Returned to Sender
Sender: [email protected] (Brazilian Government email?)
This is the mail system at host isaque.prodepa.gov.br. I'm sorry to have to inform you that your message could not be delivered to one or more recipients. It's attached below. For further assistance, please send mail to postmaster. If you do so, please include this problem report. You can delete your own text from the attached returned message. The mail system [email protected]: host mail.protonmail.ch[server] said:server Blocked by SpamAssassin (in reply to end of DATA command) - message/delivery-status -----
Hi.
I think you will not be happy, because I have a very bad news for you.
Just a few months ago I hacked your operating system and I have full control of your device. I implanted a small application into your device which sends me your current IP address and allows me to connect to your device just like remote desktop. Even if you change your password, it won=E2=80=99t help.
How I infected you? The router that you used to connect to Internet had a security hole. You can read about this problem by searching for CVE-2018-10562. I hacked your router and I put my code into it, and when you tried to connect to Internet, my program infected your device. Later I made a full copy of your hard drive (I have all your email contact lists, list of websites you visited, phone numbers, your passwords etc.)
A little while later, when I was searching your web browsing history I was shocked by what I saw!! The sites for adults you are visiting... you know what I mean... I just want to say - your fantasies are shifted far away from the normal course!...
(Bold accusation, as the people that know me lovingly refer to me as 'vanilla'. Also, you're trying to shame an American for watching any kind of porn??)
For months I have been spying on you through your device camera.. especially when you visited those sites to have fun... Those videos show clearly you having fun and the content for adults you were watching.. this is pretty nasty and I would be very worried if I were you.
I have secured 2 videos:
[email protected]_1557074047.mp4 (119.1 MB)
[email protected]_1555285697.mp4 (64.5 MB)
You can verify that the timestamps correspond to the moments you were enjoying yourself... Now, because I do not like at all what I saw (that=E2=80=99s pretty crazy and ugly) I ask you to send me a donation through Bitcoin=20 network. 3000 US dollars is a fair price (considering your perversions). If you want me to forget about the whole case, remove the files and disable the nasty app that is spying you, send me the Bitcoin=20 payment within 72 hours. Yes, I give you 72 hours only. (Oops, missed that deadline, and I haven't heard anything about it from from my mom yet. Trust me, I would've heard about it.)
Here is my wallet:
=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D (The fuck are all of these, dicks and balls? They look out of order. I would know, wouldn't I?)
Send exactly 0.36293249 BTC to my address: 34ZY6mEErHSZ76KAdHhNM3vAcpRckCRLqS (copy it and paste - it=E2=80=99s case sensitive)
(I'm supposed to trust that came out correct considering the excessive amount of characters littered through this whole shit show of an email?)
0.36293249 BTC =3D 3000 dollars (That's actually $3,368 USD.)
If you do not send me the Bitcoin, I promise you - I will send those 4 files (Wait, you said 2 just a few lines ago) with you enjoying yourself to all your contact=20 lists, associates and social network friends. I still have access to your device and I know when you read this message. When you opened it, time started ticking. You have 72 hours only! I am from Russia and nobody will help you if you report this email..
(So, you're in "Russia" spoofing a Brazilian government email address?)
Before they find me your life will be ruined!
(Actually, this would be great publicity for the book I'm writing about my experience as a SW. Too bad for me that you aren't real.)
If you do=20 not cooperate with me - I will release this ugly material immediately. This is why I advise you - send me the Bitcoin and let=E2=80=99s forget about the whole situation. I know you can afford it.
(They don't know shit about living in America, clearly.)
If you do not know how to send bitcoin
Step 1: Create an account on www.localbitcoins.com
Step 2: Buy 0.36293249 BITCOIN
Step 3: Send the amount on this BTC address: 34ZY6mEErHSZ76KAdHhNM3vAcpRckCRLqS
Step 4: Contact me on this email address [email protected]=20 with this subject: 012VIPERMARVO-RESTOREKEYPC4102934
After this steps you will receive through email the key and a decrypt tutorial.
Here is another list where you can buy bitcoin: https://bitcoin.org/en/exchanges
(Thank you for that short tutorial. Could you also explain to me how Block Chain works?)
Here is my address again:
Send exactly: 0.36293249 BTC to my address: 34ZY6mEErHSZ76KAdHhNM3vAcpRckCRLqS
Remember to send the exact amount as above! This way I will know it=E2=80=99s from you. Do not be angry at me. This is just my job, and you are not the only person i caught. Be angry at your fantasies - if you didn=E2=80=99t visit those sites for adults you would have no problem.. but now... I am waiting for your bitcoin. Remember, time is ticking..=20=20=20=20=20=20=20=20
(Again, if mom hasn't brought it up by now...)
submitted by YourBluntFriend to SexWorkersOnly [link] [comments]

A better anti-reorg algorithm using first-seen times to punish secret/dishonest mining

Bitcoin currently allows a malicious miner with at least 51% of the network hashrate to arbitrarily rewrite blockchain history. This means that transactions are reversible if they belong to a miner with a hashrate majority, and such transactions are subject to double-spend attempts. Bitcoin SV's miners have repeatedly threatened to perform this attack against exchanges using BCH by mining a secret, hidden chain which they only publish after they have withdrawn funds in a different currency from the exchange. It would be nice if we could prevent these secret mining re-org attacks.
Yesterday, I came up with a new algorithm for making secret re-org attacks very expensive and difficult to pull off. This new algorithm is designed to avoid the permanent chainsplit vulnerabilities of ABC 0.18.5 while being more effective at punishing malicious behavior.
The key to the new algorithm is to punish exactly the behavior that indicates malice. First, publishing a block after another block at the same height has arrived on the network suggests malice or poor performance, and the likelihood of malice increases as the delay increases. A good algorithm would penalize blocks in proportion to how much later they were published after the competing block. Second, building upon a block that was intentionally delayed is also a sign of malice. Therefore, a good algorithm would discount the work done by blocks based not only on their own delays, but the delays that were seen earlier in that chain as well. Since the actions at the start of the fork are more culpable (as they generate the split), we want to weight those blocks more heavily than later blocks.
I wrote up an algorithm that implements these features. When comparing two chains, you look at the PoW done since the fork block, and divide that PoW by a penalty score. The penalty score for each chain is calculated as the sum of the penalty scores for each block. Each block's penalty score is equal to the apparent time delay of that block relative to its sibling or cousin[1], divided by 120 seconds[2], and further divided by the square[3] of that block's height[4] from the fork.[5]
This algorithm has some desirable properties:
  1. It provides smooth performance. There are no corners or sharp changes in its incentive structure or penalty curve.
  2. It converges over very long time scales. Eventually, if one chain has more hashrate than the other and that is sustained indefinitely, the chain with the most hashrate will win by causing the chain penalty score for the slower (less-PoW) chain to grow.
  3. The long-term convergence means that variation in observed times early in the fork will not cause permanent chainsplits.
  4. Long-term convergence means that nodes can follow the standard most-PoW rule during initial block download and get the same results unless an attack is underway, in which case the node will only temporarily disagree.
  5. Over intermediate time scales (e.g. hours to weeks), the penalty given to secret-mining deep-reorg chains is very large and difficult to overcome even with a significant hashrate advantage. The penalty increases the longer the attack chain is kept secret. This makes attack attempts ineffective unless they are published within about 20 minutes of the attack starting.
  6. Single-block orphan race behavior is identical to existing behavior unless one of the blocks has a delay of at least 120 seconds, in which case that chain would require a total of 3 blocks to win (or more) instead of just 2.
  7. As the algorithm strongly punishes hidden chains, finalization becomes much safer as long as you prevent finalization from happening while there are known competitive alternate chains. However, this algorithm is still effective without finalization.
I wrote up this algorithm into a Python sim yesterday and have been playing around with it since. It seems to perform quite well. For example, if the attacker has 1.5x as much hashrate as the defenders (who had 100% of the hashrate before the fork), mine in secret for 20 minutes before publishing, and if finalization is enabled after 10 blocks when there's at least a 2x score advantage, then the attacker gets an orphan rate of 49.3% on their blocks and is only able to cause a >= 10 block reorg in 5.2% of cases, and none of those happen blindly, as the opposing chain shows up when most transactions have about 2 confirmations. If the attacker waits 1 hour before publishing, the attack is even less effective: 94% of their blocks are orphaned, 95.6% of their attempts fail, 94.3% of the attacks end with defenders successfully finalizing, and only 0.6% of attack attempts result in a >= 10 block reorg.
The code for my algorithm and simulator can be found on my antiReorgSim Github repository. If you guys have time, I'd appreciate some review and feedback. To run it:
git clone https://github.com/jtoomim/antiReorgSim.git cd antiReorgSim python reorgsim.py # use pypy if you have it, as it's 30x faster 
Thanks! Special thanks to Jonald Fyookball and Mark Lundeberg for reviewing early versions of the code and the ideas. I believe Jonald is working on a Medium post based on some of these concepts. Keep an eye out for it.
Edit: I'm working on an interactive HTML visualization using Dash/Python! Here's a screenshot from a preliminary version in which convergence (or attacker victory, if you prefer) happens after 88.4 hours. In this scenario, the attacker wins because of the rule in Note 5.
Edit 2: An alpha website version of the simulator is up! The code is all server-side for the simulation, so it might get overloaded if too many people hit it at the same time, but it might be fine. Feel free to play around with it!
Note 1: This time delay is calculated by finding the best competing chain's last block with less work than this one and the first block with more work than this one and interpolating the time-first-seen between the two. The time at which the block was fully downloaded and verified is used as time-first-seen, not the time at which the header was received nor the block header's timestamp.
Note 2: An empirical constant, intended to be similar to worst-case block propagation times.
Note 3: A semi-empirical constant; this balances the effect of early blocks against late blocks. The motivation for squaring is that late blocks gain an advantage for two multiplicative reasons: First, there are more late blocks than early blocks. Second, the time deltas for late blocks are larger. Both of these factors are linear versus time, so canceling them out can be done by dividing by height squared. This way, the first block has about as much weight as the next 4 blocks; the first two blocks have as much weight as the next 9 blocks; and the first (n) blocks have about as much weight as the next (n+1)2 blocks. Any early advantage can be overcome eventually by a hashrate majority, so over very long time scales (e.g. hours to weeks), this rule is equivalent to the simple Satoshi most-PoW rule, as long as the hashrate on each chain is constant. However, over intermediate time scales, the advantage to the first seen blocks is large enough that the hashrate will likely not remain constant, and hashrate will likely switch over to whichever chain has the best score and looks the most honest.
Note 4: The calculation doesn't actually use height, as that would be vulnerable to DAA manipulation. Instead, the calculation uses pseudoheight, which uses the PoW done and the fork block's difficulty to calculate what the height would be if all blocks had the fork block's difficulty.
Note 5: If one chain has less PoW than the other, the shorter chain's penalty is calculated as if enough blocks had been mined at the last minute to make them equal in PoW, but these fictional blocks do not contribute to the actual PoW of that chain.
submitted by jtoomim to btc [link] [comments]

AMA: Ask Mike Anything

Hello again. It's been a while.
People have been emailing me about once a week or so for the last year to ask if I'm coming back to Bitcoin now that Bitcoin Cash exists. And a couple of weeks ago I was summoned on a thread called "Ask Mike Hearn Anything", but that was nothing to do with me and I was on holiday in Japan at the time. So I figured I should just answer all the different questions and answers in one place rather than keep doing it individually over email.
Firstly, thanks for the kind words on this sub. I don't take part anymore but I still visit occasionally to see what people are talking about, and the people posting nice messages is a pleasant change from three years ago.
Secondly, who am I? Some new Bitcoiners might not know.
I am Satoshi.
Just kidding. I'm not Satoshi. I was a Bitcoin developer for about five years, from 2010-2015. I was also one of the first Bitcoin users, sending my first coins in April 2009 (to SN), about 4 months after the genesis block. I worked on various things:
You can see a trend here - I was always interested in developing peer to peer decentralised applications that used Bitcoin.
But what I'm best known for is my role in the block size debate/civil war, documented by Nathaniel Popper in the New York Times. I spent most of 2015 writing extensively about why various proposals from the small-block/Blockstream faction weren't going to work (e.g. on replace by fee, lightning network, what would occur if no hard fork happened, soft forks, scaling conferences etc). After Blockstream successfully took over Bitcoin Core and expelled anyone who opposed them, Gavin and I forked Bitcoin Core to create Bitcoin XT, the first alternative node implementation to gain any serious usage. The creation of XT led to the imposition of censorship across all Bitcoin discussion forums and news outlets, resulted in the creation of this sub, and Core supporters paid a botnet operator to force XT nodes offline with DDoS attacks. They also convinced the miners and wider community to do nothing for years, resulting in the eventual overload of the main network.
I left the project at the start of 2016, documenting my reasons and what I expected to happen in my final essay on Bitcoin in which I said I considered it a failed experiment. Along with the article in the New York Times this pierced the censorship, made the wider world aware of what was going on, and thus my last gift to the community was a 20% drop in price (it soon recovered).

The last two years

Left Bitcoin ... but not decentralisation. After all that went down I started a new project called Corda. You can think of Corda as Bitcoin++, but modified for industrial use cases where a decentralised p2p database is more immediately useful than a new coin.
Corda incorporates many ideas I had back when I was working on Bitcoin but couldn't implement due to lack of time, resources, because of ideological wars or because they were too technically radical for the community. So even though it's doesn't provide a new cryptocurrency out of the box, it might be interesting for the Bitcoin Cash community to study anyway. By resigning myself to Bitcoin's fate and joining R3 I could go back to the drawing board and design with a lot more freedom, creating something inspired by Bitcoin's protocol but incorporating all the experience we gained writing Bitcoin apps over the years.
The most common question I'm asked is whether I'd come back and work on Bitcoin again. The obvious followup question is - come back and work on what? If you want to see some of the ideas I'd have been exploring if things had worked out differently, go read the Corda tech white paper. Here's a few of the things it might be worth asking about:
I don't plan on returning to Bitcoin but if you'd like to know what sort of things I'd have been researching or doing, ask about these things.
edit: Richard pointed out some essays he wrote that might be useful, Enterprise blockchains for cryptocurrency experts and New to Corda? Start here!
submitted by mike_hearn to btc [link] [comments]

Part 6. (Last part) I'm writing a series about blockchain tech and possible future security risks. Failing shortcuts in an attempt to accomplish Quantum Resistance

The previous parts will give you usefull basic blockchain knowledge and insights on quantum resistance vs blockchain that are not explained in this part.
Part 1, what makes blockchain reliable?
Part 2, The mathematical concepts Hashing and Public key cryptography.
Part 3, Quantum resistant blockchain vs Quantum computing.
Part 4A, The advantages of quantum resistance from genesis block, A
Part 4B, The advantages of quantum resistance from genesis block, A
Part 5, Why BTC is vulnerable for quantum attacks sooner than you would think.

Failing shortcuts in an attempt to accomplish Quantum Resistance
Content:
Hashing public keys
“Instant” transactions
FIFO
Standardized fees
Multicast
Timestamped transactions
Change my mind: If a project doesn't use a Quantum Resistant signature scheme, it is not 100% Quantum Resistant.
Here are some of the claims regarding Quantum Resistance without the use of a quantum resistant signature scheme that I have come across so far. For every claim, I give arguments to substantiate why these claims are incorrect.
“We only have public keys in hashed form published. Even quantum computers can't reverse the Hash, so no one can use those public keys to derive the private key. That's why we are quantum resistant.” This is incorrect.
This example has been explained in the previous article. To summarize: Hashed public keys can be used as an address for deposits. Deposits do not need signature authentication. Alternatively, withdrawals do need signature authentication. To authenticate a signature, the public key will always need to be made public in full, original form. As a necessary requirement, the full public key would be needed to spend coins. Therefore the public key will be included in the transaction.
The most famous blockchain to use hashed public keys is Bitcoin. Transactions can be hijacked during the period a user sends a transaction from his or her device to the blockchain and the moment a transaction is confirmed. For example: during Bitcoins 10 minute blockchain, the full public keys can be obtained to find private keys and forge transactions. Page 8, point 3 Hashing public keys does have advantages: they are smaller than the original public keys. So it does save space on the blockchain. It doesn't give you Quantum Resistance however. That is a misconception.
“Besides having only hashed public keys on the blockchain, we also have instant transactions. So there is no time to hijack a transaction and to obtain the public key fast enough to forge a transaction. That's why we are quantum resistant.” This is incorrect and impossible.
There is no such thing as instant transactions. A zero second blocktime for example is a claim that can’t be made. Period. Furthermore, transactions are collected in pools before they are added to a block that is going to be processed. The time it takes for miners to add them to a new block before processing that block depends on the amount of transactions a blockchain needs to process at a certain moment. When a blockchain operates within its maximum capacity (the maximum amount of transactions that a blockchain can process per second), the adding of transactions from the pool will go quite swiftly, but still not instantaneously.
However, when there is high transaction density, transactions can be stuck in the pool for a while. During this period the transactions are published and the full public keys can be obtained. Just as with the previous hijacking example, a transaction can be forged in that period of time. It can be done when the blockchain functions normally, and whenever the maximum capacity is exceeded, the window of opportunity grows for hackers.
Besides the risk that rush hours would bring by extending the time to work with the public key and forge transactions, there are network based attacks that could serve the same purpose: slow the confirmation time and create a bigger window to forge transactions. These types are attacks where the attacker targets the network instead of the sender of the transaction: Performing a DDoS attack or BGP routing attack or NSA Quantum Insert attack on a peer-to-peer network would be hard. But when provided with an opportunity to earn billions, hackers would find a way.
For example: https://bitcoinmagazine.com/articles/researchers-explore-eclipse-attacks-ethereum-blockchain/
For BTC: https://eprint.iacr.org/2015/263.pdf
An eclipse attack is a network-level attack on a blockchain, where an attacker essentially takes control of the peer-to-peer network, obscuring a node’s view of the blockchain.
That is exactly the recipe for what you would need to create extra time to find public keys and derive private keys from them. Then you could sign transactions of your own and confirm them before the originals do.
This specific example seems to be fixed now, but it most definitely shows there is a risk of other variations to be created. Keep in mind, before this variation of attack was known, the common opinion was that it was impossible. With little incentive to create such an attack, it might take a while until another one is developed. But when the possession of full public keys equals the possibility to forge transactions, all of a sudden billions are at stake.
“Besides only using hashed public keys as addresses, we use the First In First Out (FIFO) mechanism. This solves the forged transaction issue, as they will not be confirmed before the original transactions. That's why we are quantum resistant.” This is incorrect.
There is another period where the public key is openly available: the moment where a transaction is sent from the users device to the nodes on the blockchain network. The sent transaction can be delayed or totally blocked from arriving to the blockchain network. While this happens the attacker can obtain the public key. This is a man-in-the-middle (MITM) attack. A MITM is an attack where the attacker secretly relays and possibly alters the communication between two parties who believe they are directly communicating with each other. No transaction is 100% safe from a MITM attack. This type of attack isn’t commonly known amongst average usergroups due to the fact communication is done either encrypted or by the use of private- public key cryptography. Therefore, at this point of time MITM attacks are not an issue, because the information in transactions is useless for hackers. To emphasize the point made: a MITM attack can be done at this point of time to your transactions. But the information obtained by a hacker is useless because he can not break the cryptography. The encryption and private- public key cryptography is safe at this point of time. ECDSA and RSA can not be broken yet. But in the era of quantum computers the problem is clear: an attacker can obtain the public key and create enough time to forge a transaction which will be sent to the blockchain and arrive there first without the network having any way of knowing the transaction is forged. By doing this before the transaction reaches the blockchain, FIFO will be useless. The original transaction will be delayed or blocked from reaching the blockchain. The forged transaction will be admitted to the network first. And First In First Out will actually help the forged transaction to be confirmed before the original.
“Besides having only hashed public keys, we use small standardized fees. Forged transactions will not be able to use higher fees to get prioritized and confirmed before the original transactions, thus when the forged transaction will try to confirm the address is already empty. This is why we are quantum resistant.” This is incorrect.
The same arguments apply as with the FIFO system. The attack can be done before the original transaction reaches the network. Thus the forged transaction will still be handled first no matter the fee hight.
“Besides the above, we use multicast so all nodes receive the transaction at the same time. That's why we are quantum resistant.” This is incorrect.
Multicast is useless against a MITM attack when the attacker is close enough to the source.
“Besides the above, we number all our transactions and authenticate nodes so the user always knows who he's talking to. That's why we are quantum resistant.” This is incorrect.
Besides the fact that you’re working towards a centralized system if only verified people can become nodes. And besides the fact that also verified nodes can go bad and work with hackers. (Which would be useless if quantum resistant signature schemes would be implemented because a node or a hacker would have no use for quantum resistant public keys and signatures.) There are various ways of impersonating either side of a communication channel. IP-spoofing, ARP-spoofing, DSN-spoofing etc. All a hacker needs is time and position. Time can be created in several ways as explained above. All the information in the transaction an original user sends is valid. When a transaction is hijacked and the communication between the user and the rest of the network is blocked, a hacker can copy that information to his own transaction while using a forged signature. The only real effective defense against MITM attacks can be done on router or server-side by a strong encryption between the client and the server (Which in this case would be quantum resistant encryption, but then again you could just as well use a quantum resistant signature scheme.), or you use server authentication but then you would need that to be quantum resistant too. There is no serious protection against MITM attacks when the encryption of the data and the authentication of a server can be broken by quantum computers.
Only quantum resistant signature schemes will secure blockchain to quantum hacks. Every blockchain will need their users to communicate their public key to the blockchain to authenticate signatures and make transactions. There will always be ways to obtain those keys while being communicated and to stretch the period where these keys can be used to forge transactions. Once you have, you can move funds to your own address, a bitcoin mixer, Monero, or some other privacy coin.
Conclusion
There is only one way to currently achieve Quantum Resistance: by making sure the public key can be made public without any risks, as is done now in the pre-quantum period and as Satoshi has designed blockchain. Thus by the use of quantum resistant signature schemes. The rest is all a patchwork of risk mitigation and delaying strategies; they make it slightly harder to obtain a public key and forge a transaction but not impossible.
Addition
And then there is quite often this strategy of postponing quantum resistant signature schemes
“Instead of ECDSA with 256 bit keys we will just use 384 bit keys. And after that 521 bit keys, and then RSA 4096 keys, so we will ride it out for a while. No worries we don’t need to think about quantum resistant signature schemes for a long time.” This is highly inefficient, and creates more problems than it solves.
Besides the fact that this doesn’t make a project quantum resistant, it is nothing but postponing the switch to quantum resistant signatures, it is not a solution. Going from 256 bit keys to 384 bit keys would mean a quantum computer with ~ 3484 qubits instead of ~ 2330 qubits could break the signature scheme. That is not even double and postpones the problem either half a year or one year, depending which estimate you take. (Doubling of qubits every year, or every two years). It does however have the same problems as a real solution and is just as much work. (Changing the code, upgrading the blockchain, finding consensus amongst the nodes, upgrading all supporting systems, hoping the exchanges all go along with the new upgrade and migrate their coins, heaving all users migrate their coins.) And then quite soon after that, they'll have to go at it again. What they will do next? Go for 512 bit curves? Same issues. It's just patchworks and just as much hassle, but then over and over again for every “upgrade” from 384 to 521 etc.
And every upgrade the signatures get bigger, and closer to the quantum resistant signature sizes and thus the advantage you have over blockchains with quantum resistant signature schemes gets smaller. While the quantum resistant blockchains are just steady going and their users aren’t bothered with all the hassle. At the same time the users of the blockchain that is constantly upgrading to a bigger key size, keep on needing to migrate their coins to the new and upgraded addresses to stay safe.
submitted by QRCollector to CryptoTechnology [link] [comments]

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Bitcoin acts as a timestamp server allowing data to be validated and referenced using transactions. Network. The Bitcoin Network is the network that all peers use to access the ledger. The network forms spontaneously over time as more peers access and use the system. There is no central governance that determines how peers on the network must connect, but the incentive structure that Bitcoin ... Bitcoincharts is the world's leading provider for financial and technical data related to the Bitcoin network. It provides news, markets, price charts and more. Browse other questions tagged digital-signature trusted-timestamp or ask your own question. The Overflow Blog The Loop: Our Community Roadmap for Q4 2020 Why is Bitcoin a Viable Medium of Exchange? ... Also, a timestamp server takes a hash of a block of transactions and publicly broadcasts the hash. The timestamp confirms the existence of the data. Each timestamp includes the previous timestamp in its hash, so each additional timestamp reinforces the ones before it. In general, a distributed system is more resistant to failures and cyber ... A timestamp is accepted as valid if it is greater than the median timestamp of previous 11 blocks, and less than the network-adjusted time + 2 hours. So I suppose a miner can insert a "fake" timestamp, insomuch that it is between these two bounds. Nonetheless, a "fake" timestamp will not influence its position in the blockchain.

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