#ethereum

« The Most Important Scarce Resource is Legitimacy »

▻https://vitalik.ca/general/2021/03/23/legitimacy.html

Très intéressant texte de Vitalik Buterin (le créateur d’#Ethereum) sur la notion de légitimité à partir de questions comme « si je fais une scission pour le logiciel libre X, quelle version va être considérée comme légitime ? ». Il n’y a pas d’obstacle technique ou juridique (puisque le logiciel est libre) à cette scission, mais le vrai problème sera de bâtir une légitimité. Il étudie le cas des cryptomonnaies, le financement du logiciel libre, les noms de domaine, et bien sûr, puisque c’est à la mode, les NFT.

#légitimité #gouvernance_logiciel_libre #gouvernance_chaîne_de_blocs #chaîne_de_blocs

Towards More Programmable and Robust Security Tokens: Five Protocols that Should be Part of…
▻https://hackernoon.com/towards-more-programmable-and-robust-security-tokens-five-protocols-that

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Towards More Programmable and Robust Security Tokens— Five Protocols that Should be Part of Security Token PlatformsThe market for security token platforms seems to be getting crowder every weeks. In a market with only a handful of actively traded security tokens, we already have over 50 platforms that are promising to be the future of crypto-securities. On paper, most of those platforms look incredibly similar which contributes to the noise in the market. To differentiate signal from noise, security token platforms must evolve their technical capabilities in order to support more sophisticated offerings. And we don’t need to start from scratch; the #ethereum ecosystem offers a rich set of protocols that can easily improve the feature-set of the next generation security token platforms. (...)

#security-token #blockchain #cryptocurrency #invector-labs

Trendsetting in 2019: How #crypto Traders Get an Edge
▻https://hackernoon.com/trendsetting-in-2019-how-crypto-traders-get-an-edge-dee49a5cf3ef?source=

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Bitcoin bubbles have a tendency to be so volatile and unpredictable, despite their historical occurrence, that they often leave traders traumatized and drained of confidence. After being raked through the coals by the latest ups and downs, those who witness #bitcoin at historical bottom-barrel prices may miss a years-in-the-making opportunity to buy in at the best possible moment. However, this dilemma is by design. Hesitance is bred on the tail-end of a bubble, when a logical market would otherwise look at the charts and be quite optimistic.Despite that there’s always a way to derive value from #cryptocurrency speculation, Bitcoin is now a mature and known entity, and navigating the markets is therefore not as straightforward as it was in 2011. Back then, no one knew if Bitcoin would (...)

#ethereum #blockchain

Secure Proof of Stake in #blockchain, Explained
▻https://hackernoon.com/secure-proof-of-stake-in-blockchain-explained-f7fbea5a787a?source=rss---

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Secure Proof of Stake in Blockchain: ExplainedProof of Stake consensus mechanism states that a person can either mine or validate block transactions in accordance with how many coins he or she possesses. Now, this implies that the more bitcoin or altcoins are owned by a miner, the more mining power he or she has.The first digital currency to adopt this method of Proof of Stake was Peercoin.Let’s discuss this in detailWhat Exactly is Proof of Stake?The Proof of Stake (PoS) consensus algorithm was first introduced back in 2011 on the Bitcointalk forum aimed to solve the issues of the most popular algorithm in use — Proof of Work.Where both the algorithms share the same goal of reaching consensus in the blockchain, the process to reach this goal in for both is all different.How Does This (...)

#ethereum #proof-of-stake #blockchain-technology

Fixed point math in Solidity
▻https://hackernoon.com/fixed-point-math-in-solidity-616f4508c6e8?source=rss----3a8144eabfe3---4

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It always seems impossible until it’s done. — Nelson MandelaIntroductionAny financial application with a minimum of complexity will need some decimal support and multiplications to calculate things like interest. In the case of CementDAO we needed logarithms to implement the transaction fee curve that steers its cryptocurrency basket towards the desired configuration.Solidity supports integers but no decimals, so we coded a fixed point arithmetic contract, made it safe against overflow, and tested it extensively. It underpins the CementDAO deployment in Ropsten.The Fixidity contract is available from the CementDAO github with a MIT license, please feel free to use it and build upon it.ImplementationIn order to code this we went from the simplest to the most complex arithmetic functions, (...)

#blockchain #mathematics #ethereum #software-development #open-source

A Deep Dive into the MythX Smart Contract #security Analysis #api
▻https://hackernoon.com/a-deep-dive-into-the-mythx-smart-contract-security-analysis-api-3c2cd8e6

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This week, we launched five challenges as part of the Ethereal Virtual Hackathon with a prize pool of $6k (paid in crypto, obviously). This quick guide explains how to perform an analysis with MythX API.What is MythX?MythX is a security analysis platform for #ethereum smart contracts. It performs a comprehensive range of industry-leading analyses on smart contracts, including input fuzzing, static and symbolic analysis.The goal of MythX is to make security analysis available to all Ethereum developers — even those who are not security-savvy. In the ongoing Hackathon we award prizes in five categories. For more details on the requirements and prizes check out the Gitcoin issues:Foundational ToolsContinuous Integration ToolsIDEs and Code EditorsWeb appsFreestyleHow MythX API worksMythX clients (...)

#hackernoon-top-story #smart-contracts

EthVM: First Open-Source Block Explorer Powered by Kafka
▻https://hackernoon.com/ethvm-first-open-source-block-explorer-powered-by-kafka-e1639fc93e8e?sou

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Implementing the Apache Kafka ecosystem for processing #ethereum #blockchain dataIn the decade since Bitcoin introduced the world to cryptocurrencies, the industry has evolved in ways that perhaps even Satoshi could not envision. The Ethereum blockchain, which emerged in July 2015, opened a new world of possibilities thanks to the Ethereum Virtual Machine (EVM) — an environment for developing and executing smart contracts.The EVM enabled the Ethereum network to be something more than a repository for a history of monetary transactions — it was an ecosystem that invited exploration, interaction and collaborative innovation.Continuing the MEW (MyEtherWallet) legacy of open-source products that empower both users and developers to explore the possibilities of blockchain, we introduce EthVM: the (...)

#cryptocurrency #data #blockchain-technology

The Innards of an #erc20 Token
▻https://hackernoon.com/the-innards-of-an-erc20-token-587c29e9b8a1?source=rss----3a8144eabfe3---

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What does this mean?You’ve all heard by now that #suncontract’s SNC token is an ERC20 token… But do you know what it means to be of ERC20 standard? If not, stick around for a simple explanation on the ERC20 standard.Ethereum PlatformERC20 tokens are designed and used solely on the #ethereum platform. The Ethereum platform consists of a #blockchain that is capable of storing transactions, and a virtual machine that is capable of running smart contracts.Because of these two functions of the Ethereum network, the platform can support the running of decentralised applications (DApps). In return Ethereum charges developers for the computing power in their network — which is paid in Ethers — the main currency on the Ethereum network. Besides Ether, the platform can also support other tokens, including (...)

#ethereum-blockchain

Tackling #ethereum’s #blockchain Trilemma via Serenity, Ethereum 2.0
▻https://hackernoon.com/tackling-ethereums-blockchain-trilemma-via-serenity-ethereum-2-0-1fb423a

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An overview of the impending transition towards Proof of Stake (Casper), #sharding, and Ethereum-flavored WebAssembly (eWasm)The following post is an academic-style piece written in April 2019. Depending on when you are reading this, much may have changed in the Ethereum roadmap.Introduction to Ethereum’s Scaling Issues & The Blockchain TrilemmaEthereum is a decentralized application platform that runs applications without any chance of fraud, censorship or third-party interference. Powering thousands of decentralized applications (dApps), Ethereum is hailed as one of the most defining digital currency projects of the era and is heavily utilized in both commercial and non-commercial settings. However, as the network continues to grow in terms of traffic, it has reached certain (...)

#proof-of-stake-casper #scalability

Top green #mining projects
▻https://hackernoon.com/top-green-mining-projects-a3127a88f8b1?source=rss----3a8144eabfe3---4

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Top Green Mining Crypto ProjectsThe advantage of bubbles, when they pop, is that they make it possible to do a big spring cleaning. And, on the side of the mining services provider, we can say that the purge was severe.Why that?Let’s go back a few months ago…- The sector has been the target of many scams (it has been highly targeted, as have been the exchange and #blockchain projects). - The price of cryptocurrencies has fallen sharply, making unprofitable most of the mines that had been built in a hurry, with machines that are not very efficient and use a huge amount of energy.- Mining has been criticized in all major media for its impact on the climate, has been hijacked by Javascript hacks on contaminated sites to unknowingly mine using the computers of the Internet users.- Etc.In (...)

#cryptocurrency #ethereum

The State Of The DAOs
▻https://hackernoon.com/the-state-of-the-daos-b7cba318460b?source=rss----3a8144eabfe3---4

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Decentralised Autonomous Organisations (DAOs) are one of the most anticipated applications of #blockchain technology. After all, this is the first time in history we homo sapiens had the means to coordinate in a trustless and anonymous way to make collective decisions for a certain cause.In this article, I will attempt to take you on a walk (be prepared, it’s going to be a long walk) through the most notable DAOs that have ever existed, are already running and are going to launch in the near future. While discussing DAOs, I will categorise them in terms of 3 main properties:Nature of the decisions to be madeIncentives for participationLevel of decentralisationAlong the way, I will also discuss my opinions about the DAOs, as well as any concerns I have for any of the mechanisms.Before (...)

#decentralization #dao #ethereum #hackernoon-top-story

Some Thoughts About Security Token Networks: Part I
▻https://hackernoon.com/some-thoughts-about-security-token-networks-part-i-d94518e7f32e?source=r

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Recently, I wrote about the emergence of security tokens in permissioned blockchains as a “local maximum” phenomenon or an approach with strong short term perspectives but with questionable viability long term. The last part of that article explores the idea of a security token network that enables public availability with privacy constraints to link together the different participants in the security token ecosystem. Coincidentally, shortly after my article came out, we saw the news of Provenance raising $20 million on a security token offering(STO) to build a very similar model. Today, I would like to explore some ideas about the thesis of security token networks, its value proposition and risks.As a market dynamic, the emergence of security token networks might be influenced by two (...)

#invector-labs #cryptocurrency #ethereum #blockchain #security-token

Move over ICO, Reverse ICO is the future
▻https://hackernoon.com/move-over-ico-reverse-ico-is-the-future-9d2a4278b550?source=rss----3a814

Are initial coin offerings (ICOs) dead? Not quite so, with ICOs having raised more than $11 billion in 2018, nearly double the amount raised in 2017. Are they still relevant and the best funding technique in this maturing market? Probably not.Launching an ICO has been the de facto way for #blockchain startups to raise funds. Traditional funding methods such as an initial public offering (IPO) where private companies go public and sell shares to investors is a rigorous process, with corporates having to ensure that regulatory and compliance measures are met. ICOs on the other hand, provide an easier way for companies to raise funds through cryptocurrencies. They also democratise the fundraising process, enabling anyone and everyone to contribute with minimal restrictions.However, given (...)

#bitcoin #reverse-ico #cryptocurrency #ethereum

#blockchain as the Next Evolutionary Step of the Open Source Movement
▻https://hackernoon.com/blockchain-as-the-next-evolutionary-step-of-the-open-source-movement-12e

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There’s little argument that open source has transformed our world. As a developer, I cannot recall a single day in the last few years where I did not rely on open source software. I’m not the exception. The majority of software engineers today rely on open source daily in their professional lives.For one, open source is dominating developer infrastructure. From operating systems (Linux in the cloud) to databases (MySQL, MongoDB, Redis) to programming languages themselves (JavaScript, Python, Java, C, PHP). It’s not just developers, it’s consumers as well. From what they run on their phones (Android) to how they access the web (Chrome, Firefox).The motivation is clear. Open source is good for humanity. It is making technology more accessible and open — anyone can build anything.Open source (...)

#bitcoin #open-source #ethereum #cryptocurrency

A Divergence of HashRates in 2019
▻https://hackernoon.com/a-divergence-of-hashrates-in-2019-1a91143395d4?source=rss----3a8144eabfe

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A Divergence of HashRates in 2019Bitcoin mining operation — ▻https://usethebitcoin.com/bitcoin-computing-power-is-growing-faster-than-its-price/IntroductionAs I have established in previous posts, the hashrate and price of a cryptoasset are typically linked. As cryptocurrencies recover in 2019, it is worthwhile to evaluate the hash power of the leading cryptoassets to gain a sense of the mining community’s confidence in the future prospects each cryptoasset. In this post I evaluate the hash power of three leading cryptoassets Litecoin, #bitcoin, and Ethereum. I find that hashrates are diverging for Litecoin, Bitcoin, and Ethereum, indicating that Litecoin and Bitcoin will outperform Ethereum in the forthcoming bull market.LitecoinLitecoin has had the most remarkable #hash-rate resurgence (...)

#litecoin-hash #bitcoin-hash #ethereum-hash

Going to Atlantis : #ethereum Classic (ETC) ECIP-1054 Hard Fork
▻https://hackernoon.com/going-to-atlantis-ethereum-classic-etc-ecip-1054-hard-fork-a9a84ef6a785?

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The Definitive Guide to Ethereum Classic’s Next Hard ForkThe Atlantis ECIP-1054 Hard Fork has been announced with great reception amongst the stakeholders in the ETC ecosystem. The proposed changes will “Enable the outstanding Ethereum Foundation Spurious Dragon and Byzantium network protocol upgrades on the Ethereum Classic network in a hard-fork code-named Atlantis to enable maximum compatibility across these networks.”You can find the Hard Fork proposal on ETC Labs Core Github:etclabscore/ECIPsThe team is available for questions and further discussion on the ETC Labs Core Discord server.The Hard Fork is targetted for block8_750_000 on the Ethereum Classic mainnet, expected some time in mid-September 2019After this Hard Fork, the Ethereum Classic network will benefit from:A more (...)

#blockchain #ethereum-blockchain #ethereum-classic #blockchain-technology

A Local Maximum Paradox: Permissioned Blockchains and Security Tokens
▻https://hackernoon.com/a-local-maximum-paradox-permissioned-blockchains-and-security-tokens-ec4

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Security tokens have evolved exclusively as public #blockchain scenarios but that trend seems to be rapidly shifting. In the last few months, I’ve talked to at least a dozen of startups that are embarking on the journey of building crypto-security platforms for permissioned blockchains. These types of solutions seem obviously targeted to enable the infrastructure for banks and institutional investors to leverage security tokens while mitigating the risks of public blockchains. Whereas the value proposition of permissioned blockchains for security tokens might look clear in the short term, there are some very interesting economic and technological arguments that should be considered for the long-term viability of this trend. Today, I would like to present some ideas about (...)

#security-token #invector-labs #cryptocurrency #ethereum

How to Handle #cryptocurrency Mining on Your #taxes
▻https://hackernoon.com/how-to-handle-cryptocurrency-mining-on-your-taxes-bd665a0efc57?source=rs

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Cryptocurrency received from mining is treated in two ways for tax purposes. Other factors also come into play depending on whether or not your mining operation is treated as a business entity or just as a hobby. This article breaks down each of these two taxable events and explains the implications of reporting your crypto and #bitcoin mining transactions on your taxes.1. Crypto received from mining is treated as incomeThe first tax event you need to be aware of is income received from mining. When you mine coins, you have income on the day the coin is “created” in your account at that day’s exchange value.For example, if you successfully mined 0.25 ETH on June 15th, 2018, then you have income of whatever the USD value of 0.25 ETH was on June 15th, 2018. This income needs to be reported.If (...)

#blockchain #ethereum

Enough with the Chainsplaining (Part 1): How to Talk #blockchain Empathtically
▻https://hackernoon.com/enough-with-the-chainsplaining-part-1-how-to-talk-blockchain-with-empath

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Enough with the Chainsplaining (Part 1): How to Talk Blockchain Empatheticallymansplain: verb: (of a man) explain (something) to someone, typically a woman, in a manner regarded as condescending or patronizing.Chainsplaining starts innocuously enough. Maybe you’re at a cocktail party or a neighborhood gathering, and blockchain happens to bubble up in casual conversation.“Blockchain? That’s like Bitcoin right?”Or “Yeah, I’ve read a bit about Crypto but I still don’t get it…”Or “Didn’t everyone lose a bunch of money on ICOs?”You might be bursting at the seams to explain, describe, and demystify the layers of blockchain. And in the beginning, your audiences will probably greet this with a mixture of feigned curiosity, FOMO, surveillance unease, and disdain for yet another over-hyped techno-fad.But —  (...)

#ethereum #usability #mansplaining #empathy

Does Your Company Need #blockchain?
▻https://hackernoon.com/does-your-company-need-blockchain-740893ea6201?source=rss----3a8144eabfe

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Blockchain has been a buzzword for the last couple of years arising out of the hype from #bitcoin. No doubt, the #technology is promising as it allows for trust less-consensus between multiple parties based on peer-peer networking and secures hashes that cannot be altered by design.The image is taken from ShutterstockAs Governments and Private Sectors embark on the Digital Transformation journey, increasingly Blockchain is a part of conversations for providing immediate consensus, real-time information sharing and smart contracts, which can trigger payments based on preset conditions. However, in order for this technology to succeed, the biggest challenge is around identity verification and the ability to prove ownership in the digital world.We at Go4 Blockchain empowering organizations (...)

#decentralization #ethereum

Identity: The Elephant in the Enterprise #blockchain Room
▻https://hackernoon.com/identity-the-elephant-in-the-enterprise-blockchain-room-6f31ed8d4132?sou

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The adoption of permissioned blockchain technologies in the enterprise is a road full of challenges. The so called Web3 stack based on decentralized ledgers is still fundamentally immature to enable sophisticated enterprise business processes. Among the building blocks missing from enterprise blockchain platforms, identity raises to the top of the list as one of the omnipresent challenges of this new generation of enterprise solutions. At Invector Labs, we are regularly faced with the challenges of enabling identity management capabilities in permissioned blockchain solutions. As a result, we have developed certain ideas of the key capabilities and models of an identity layer for enterprise blockchain solutions which I would like to outline in this article.Over the last five years, the (...)

#hyperledger #ethereum #invector-labs #cryptocurrency

#crypto for Adventurers. Part 1: Access
▻https://hackernoon.com/crypto-for-adventurers-part-1-access-243f0ba4365c?source=rss----3a8144ea

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via National GeographicThis guide is meant as a companion to your adventure in crypto. It follows the first article in the series which covered the promises and excitement of blockchain technologies in the context of its evolution over the past decade. If you’ve already delved into the space, I’m hopeful these articles will fill in some hidden gaps.My journey in crypto has not been straightforward. I’ve been in tech the last few decades and yet I found the maze of services, offerings, platforms and tokens in blockchain frankly overwhelming.I needed to build up a mental model of the entire puzzle, but I struggled to know where to start. Over time I learned about the evolution of the various blockchain generations enough to understand what they had in common and where they distinguished (...)

#ethereum #wallet #bitcoin #eos

How #ethereum Is Very Likely To Become A Leading #blockchain Platform
▻https://hackernoon.com/how-ethereum-is-very-likely-to-become-a-leading-blockchain-platform-110e

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▻https://cdn.pixabay.com/photo/2018/09/07/09/10/ethereum-3660218_960_720.jpgWhen blockchain technology went mainstream in late December 2017, little did many tech analysts, IT experts, and ordinary users know that the industry was heading into an unprecedented revolution era. At that time, few cryptos like Ethereum and Bitcoin were all over the news making popular headlines as prices kept soaring high.It was at this point that many enterprising individuals and business organizations saw the need to adopt relevant blockchain solutions by investing in the technology. Most folks who were already tired of the old, dysfunctional monetary system didn’t hesitate to join in the bandwagon too. Within two months, the crypto market seemed to have gone out of control, blowing everyone’s imagination (...)

#blockchain-development #blockchain-technology

Market Maker Bot Signals Overview
▻https://hackernoon.com/market-maker-bot-signals-overview-9e48d35567e7?source=rss----3a8144eabfe

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IntroductionDeciding when to buy low and sell high is the key to any automated trading strategy. We’ve been incorporating many theories in our bot as it evolves over time, and this post will summarize them.RSIDon’t buy RSI over 70 — don’t sell RSI under 30. Simple. RSIs are minutely arrays in 6 second update intervals separated into 10 instances, checked against the minutely values from the previous 14 values of bids.Bollinger BandsDon’t buy over upper BB band. Simple. Same methodology as RSIs except over 9 minutes.Tiered Buy Orders Down the BooksAs the price declines, and we submit buy orders that turn into trades, we submit smaller buy orders for lesser prices. This allows us to scrape differences in the books easier than holding a coin until it appreciates, and allows us to profit more from (...)

#ethereum #bitcoin #blockchain #ico #bot-signals

Be Your Own “X”- Why #blockchain Matters
▻https://hackernoon.com/be-your-own-x-why-blockchain-matters-4f07fe899992?source=rss----3a8144ea

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There are three types of folks you’d usually meet on Crypto Twitter.“The blockchain is just an overhyped technology. It’s slow and it sucks”“The blockchain is good for #bitcoin, and nothing else. Everything else is an alt/shitcoin/scam. Also, Satoshi is my lord and savior”“The blockchain is a monumental shift in computing, and we’re just in the beginning”I’m in the third camp, and I’ll tell you why.The market looks fine today, doesn’t it?Blockchain Redefines Data CustodyHave you heard the phrase “Be Your Own Bank”?This phrase pretty much encapsulates the value proposition of Bitcoin: You don’t need banks because you have a decentralized network that enables you to control your own money. You, and no one else.So in essence, we’re talking about a shift of custody.Banks -> You.But what if we look at (...)

#cryptocurrency #decentralization #ethereum