Are you ready to dive into the world of flash loan arbitrage using Aave and Hardhat? If you’re looking to leverage the power of decentralized finance (DeFi) to profit from price discrepancies, you’re in the right place. …

This post is the continuation of my previous about key derivation. So we already know how to create an huge amount of wallets using a recovery seed or an extended private key, the well-known derivation method described in BIP32 and the derivation paths of BIP44. However, generating keys based on…

This is the second installment in the Ethereum 101 series. Previously, we explored blocks and how they’re linked to form a blockchain, then poked around at real block data on a test network. 2021 note: since the time of writing, Ethereum demand — and therefore transaction fees — have risen…

I only recently found out about the realm of MEVs despite having traded in the crypto space for some time already. My work mainly revolved around trading in spots and futures markets in CeFi, so I never really bothered to look into DeFi that much. But one of my clients…

We will be doing walk through of a simple zk-dapp for age verification, that will allow users to prove that they are below a certain age without revealing their actual age. …

Forthcoming mainnet upgrades suggest a future of incentivized data preservation and a shared responsibility to encode the past — Ethereum’s core devs are already approaching another major upgrade to mainnet. This upgrade will center on Ethereum Improvement Proposal #4844 (EIP-4844). They’ve designated a new portmanteau, “Dencun,” to refer to this upgrade (combining “Deneb” and “Cancun,” for updates to the consensus and execution layers, respectively).

The blockchain ecosystem is rapidly evolving, with the need for interoperability and cross-chain communication becoming increasingly important. In this article, we will explore the implementation of cross-chain communication using the Cosmos SDK and the Inter-Blockchain Communication (IBC) protocol. …

GMX’s initial version distinguished itself by offering a decentralized spot and perpetual exchange that supported low swap fees and zero price impact trades, an attractive proposition for both casual and professional traders. The backbone of the GMX trading infrastructure was GLP, a unique multi-asset pool, that allowed liquidity providers to…

The Future of Transacting on Ethereum — Ethereum Improvement Proposal (EIP) 4337, now known as Ethereum Request for Comment (ERC) 4337, is a transformative proposal that could redefine the Ethereum blockchain’s transaction process. …

Meet the architecture powering the internet of value — Scaling Blockchains Today, Ethereum processes around 12 transactions per second. To support a future in which the world’s financial activity is on-chain, we need to be able to process millions of transactions per second. However, blockchains are hard to scale due to their decentralized nature. The holy grail has always been horizontal…

No Maxis, not every blockchain is slow and inefficient. The Bitcoin blockchain is, which is not a bad thing. — Introduction In the realm of blockchain technology, a debate has emerged between proponents of blockchains and Bitcoin maximalists. Bitcoin maximalists, are individuals who believe that Bitcoin is the superior cryptocurrency and that other digital assets are unlikely to succeed. It is often argued that (permissionless) blockchains, which allow for decentralized participation…

This article assumes an understanding of Avalanche architecture. If you need a refresher, please read my previous article. Avalanche’s subnet architecture enables builders to create customized blockchains that cater to their specific requirements. With subnets, developers can build private blockchains for businesses, public blockchains for decentralized applications, or even gaming…

Introduction Hubble Exchange is a trustless and composable trading system for perpetuals. Engineered at the intersection of derivatives and application-specific VMs. Hubblenet is a perp-specific chain; customized to embed a fully Decentralized Limit Order Book and its Matching Engine. These perp-specific customizations enable Hubblenet to be the foundation of a…

A hands-on guide — Compound is a decentralized protocol which establishes money markets with algorithmically set interest rates based on supply and demand, allowing users to frictionlessly exchange the time value of Ethereum assets*. Compound V2 is one of the most important protocols on EVM chains. …

Bytes are a large aspect of Solidity, whether when using fixed size bytesN or dynamic size bytes array. We will see in this article their difference, bitwise operations related to fixed-sized array bytesN and we can use them to perform some generic methods like concatenating. Table of Content : Endianness & bytes data layout…

Understanding Finality Risks in Bridges — Understanding What Happened With Ethereum Last Week On Thursday, May 11th, and Friday, May 12th, Ethereum encountered an unexpected problem that disrupted block finality for roughly two hours in total. During the two network stoppages (we’re reticent to call it an outage here at LI.FI), …

We are welcoming you to our weekly digest! Here we discuss the latest trends and advancements in account abstraction, as well as bring some insights from Etherspot’s kitchen. The latest news we’ll cover: · ERC4337 Core Devs call — Meeting #10 · Ethereum nears Visa in processed transaction volume · Etherspot Partnered…

What are ZKPs In simple terms, Zero Knowledge Proofs enable one party (prover) to cryptographically prove the possession or validity of a piece of secret information (witness) to a second party (verifier), without revealing that information. This cryptography primitive was first introduced by Shafi Goldwasser, Silvio Micali, and Charles Rackoff in 1985, in…

Table of Content Prerequisite Introduction EIP 4337 Account Abstraction Conclusion Prerequisite solidity knowledge Knowledge of Blockchain account types Introduction Blockchain transactions can only be initiated from an Externally Owned Account (EOA) because an EOA account has a private key to sign a transaction and ETH to pay for gas. Contract accounts can…

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 …