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Articles by Alex Roan
The Cyfrin Mission
In 2023, it's embarrassing to be in Crypto. It's a painful statement to type, having personally spent roughly the last four years here, but it's true. Knowing that most mainstream exposure is about traders, scams, and monumental collapses, how do you broach the fact that you work in Crypto to the general population without hesitating? The industry that was born as a protest against opaque corruption is now, in the eyes of many, the poster boy for opaque corruption.
How To Create A ZK Smart Contract
Creating and verifying zero-knowledge proofs in solidity Zero Knowledge Proofs enable a Prover to demonstrate knowledge of something to a Verifier without revealing that knowledge. For example, if we want to prove that we have solved a puzzle without giving away the solution, we can use Zero Knowledge Proofs. How does this relate to Smart Contracts? Imagine a Solidity smart contract called Sudoku , running on an EVM blockchain.
Invariant Testing - Enter The Matrix
No one has root access to Base Reality. However, we do have root access to The Matrix. We get to define everything that can happen and everything that must remain true, no matter what. By classifying these things, we can start to reason about them better: Actions - A set of everything that can happen during a simulation. Invariants - A set of truths that should always hold no matter which Action or sequence of Actions is performed.
How to Survive a Crypto Bull Run
The do’s and don’ts Photo by NRKbeta on Unsplash “It’s super exciting right now. Prices will likely never be as low as they were just a few months ago. The more I analyse the trends, the more I am confident that I know where Bitcoin is going. The news consistently speaks of institutional investment, and it’s clear to me that people are waking up and getting into Bitcoin for good. A supply shock is just around the corner.
Animoca Brands and WAX are bringing Bratz® to blockchain this December!
The global fashion doll line Bratz®, manufactured by MGA Entertainment (MGAE), is stepping into digital entertainment and blockchain, together with Animoca Brands and WAX.io. While preparing for the soon to be launched Ethereum-based Bratz Lookz™ game, Animoca Brands and WAX will launch a “Bratz® Card Sale” on the WAX blockchain on 22 December 2020.
Shroom Community Update #1
Hey Shroomies! How is it going? It’s been a couple of weeks since we appeared in the DeFi scene and since then things in the ecosystem have been evolving rapidly. It’s crazy the speed at which things are moving. It’s super exciting to see this fast innovation.
Understanding the Different Types of Blockchain in the Digital Market Today
By AsianMarketCap Official on The Capital There are mainly four types of Blockchains that have emerged after Bitcoin introduced Blockchain to the world. 1. Public Blockchain 2. Private Blockchain 3. Consortium or Federated Blockchain 4. Hybrid Blockchain 1. Public Blockchain A public blockchain, as its name suggests, is the blockchain of the public. It is a kind of blockchain which is -‘ for the people, by the people and of the people’ It is non-restrictive, permission-less distributed ledger system.
How to Create a DApp With Blockchain Lego
The story of how I created a Defi application without spending a penny. Photo by Xavi Cabrera on Unsplash I created a DApp in the simplest way I knew how to: by piecing together the work of others. Decentralized Finance (DeFi) is huge in the blockchain world right now. With over $1Billion locked up in DeFi protocols on Ethereum alone, it has an interesting future ahead. I don’t have the manpower to create my DeFi ecosystem, so how can I build something useful?
This Is How Chainlink Oracles Work on Ethereum
Calling web APIs from Ethereum smart contracts using Chainlink Oracles. Photo by Joshua Sortino on Unsplash Blockchains are essentially walled gardens. One of the biggest roadblocks to the adoption of decentralized applications is the ability to interact with data outside of the blockchain itself. Smart contracts which runs on Ethereum, for example, have no native way of accessing data outside of the Ethereum ecosystem. Chainlink solves this problem by providing a platform for Blockchain Oracles.
Abnormal ETH Transactions Attracted a Lot of Attention Last Week - BTC, ETH, LTC Price Analysis, 15 June 2020
By Bitvalex on The Capital Last week, a couple of mysterious transactions took place on the Ethereum blockchain. Their initiators paid millions of dollars in fees.
How to Create the World’s First Mainstream DApp
Remove the high barrier for entry Photo by Joshua Earle on Unsplash Despite the promise of decentralised applications, user experience is still not ready for mass adoption. There are plenty of projects aiming to improve this. Next-generation wallets, aimed at competing with Metamask, are working to hide the plumbing of Web3 injection. Some prime examples are Torus, Fortmatic, Portis, Unilogin and Authereum. However, in my opinion, none go far enough.
What The Bitcoin Revolution Will Look Like
What happens when the foundations of our financial system are disrupted? Image by WikiImages from Pixabay “The Times 03/Jan/2009 Chancellor on brink of second bailout for banks” That’s the message digitally etched into the first block in a chain that would eventually bring about the age of the Blockchain. Bitcoin. That was in 2009. Since then, thousands of other Blockchain solutions have popped up, all staking their claim as the “future of x”.
Weekly Crypto News Digest: Bitcoin Predicted to Grow Well Over $10,000, Binance Announced Support for STEEM Hardfork, Layer1 Will Be Paid Over $17 Million for Not Mining
By SwapSpace on The Capital Bloomberg’s head analyst Mike McGlone predicted that BTC prices will rise to and above $10,000. According to a tweet from May 21st, several key factors — including the growth of used addresses, record-breaking open interest values, and current AUM amounts — all signal to the fact that the coin can rise to and sustain a price of $10,000 per BTC.
What Is HedgeTrade and How to Buy HEDG?
By SwapSpace on The Capital HedgeTrade was launched in 2019 and currently works in conjunction with the decentralized application of the same name which provides cryptocurrency market analysis, predictions, and educational material for novice traders. The project’s ICO was held from September 15 to October 15, 2017, and the developers raised $15 million for 60% of the total emissions, which amounted to 1 billion HEDG.
What is Hybrid Cryptocurrency? And how It can Revolutionize the Crypto Industry?
By Nagaya Technologies on The Capital https://nagaya.co/ With Digital Currencies becoming the talk of the town, people are seeing the potential for them to become the perfect alternative to the current financial system. As per 2019, market adoption of Cryptocurrency is 237.1 billion U.S. dollars, up from the 2018 value of 128.78 billion. Source: Statista.com But we got to ask, what is the percentage of these are investors willing to bet on it long-term?
Why We Won’t See Effects of the Bitcoin Halving for a Few Years
First of all, what is the Halving Halvening? Photo by Aron Visuals on Unsplash In Blockchain, it’s so easy to be lost in the acronyms, buzzwords, and terminology. Amongst which, is The Bitcoin Halving. In the simplest terms: The Bitcoin Halving makes Bitcoin twice as expensive to “mine”. After a halving event, the miners who spend their hard-earned cash on electricity to power their computers, receive half as much BTC for their troubles. That’s pretty much the crux of it.
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