Best of Ethereum — 2024

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   Coins Bench·2y

   Advanced Blockchain: Mastering How Blockchain Works :)

   This post simplifies the complexities of blockchain technology using simple explanations and illustrative diagrams. It debunks common misconceptions such as the confusion between Bitcoin and blockchain. The post explains blockchain fundamentals, including its decentralized nature, the role of nodes, and how transactions are validated and stored. It also covers concepts like smart contracts, the Ethereum Virtual Machine (EVM), gas fees, and the difference between Ethereum and Bitcoin. Additionally, it tackles advanced topics like consensus mechanisms (PoW, PoS), and the importance of maintaining network security against double-spending and 51% attacks.

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   Community Picks·2y

   Create a Blockchain App Using React

   Learn to build a decentralized application (dApp) using React, Vite, and Tailwind CSS that allows users to send Ethereum transactions, view their transaction history, and connect their MetaMask wallet. The tutorial covers the entire process from setting up the development environment and writing smart contracts using Solidity to deploying and testing the smart contract on the Ethereum Sepolia test network.

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   Javarevisited·2y

   5 Best 101 Blockchains Courses for Blockchain Developers in 2025

   Looking to become a Blockchain Developer in 2025? Here are the top blockchain courses from 101 Blockchains that offer comprehensive training. These courses cover essential blockchain skills like Ethereum, Solidity, and Web3, and include certifications such as the Certified Enterprise Blockchain Professional (CEBP). Whether you're interested in NFT development, decentralized finance (DeFi), or enterprise blockchain applications, 101 Blockchains provides self-paced, modular courses designed for both beginners and seasoned professionals. Enhance your blockchain expertise and explore various career paths with these training programs.

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   Ethereum BlockChain Development·1y

   Blockchain Devops

   Blockchain DevOps applies DevOps principles to blockchain development, focusing on streamlining processes such as development, deployment, testing, and operations. This example demonstrates the implementation of DevOps with the Foundry framework, covering installation and requirements but not the main coding part.

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   Coins Bench·2y

   Blockchain

   Blockchain is a distributed immutable ledger that is completely transparent. It is used for various applications such as product tracking, smart contracts, health care, and international wire transfer. Hashing algorithm is important for ensuring the integrity of data in a blockchain.

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   Javarevisited·1y

   Top 10 Courses Blockchain Developers Should Take in 2025

   Discover the top 10 online courses for blockchain developers in 2025. These courses cover essential skills like smart contracts, Ethereum, Solana, NFT development, and AI, available on 101 Blockchains. Enhance your blockchain expertise with comprehensive lessons and take advantage of current discounts on courses.

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   Coins Bench·2y

   🔐 Master Solidity: Must-Know Interview Questions for Ethereum Developers 🛠️ (Practical Only)

   Solidity expertise is critical for Ethereum developers, particularly during interviews that often include practical coding challenges. Key topics include differences between transfer and send functions, gas-efficient for loops, avoiding storage collisions in proxy contracts, and distinguishing between storage and memory in array handling. Other important areas are encoding data with abi.encode and abi.encodePacked, preventing inflation attacks in ERC4626 contracts, using custom errors versus require statements with error strings, and understanding function selector clashes and beacons in proxy contexts. Recognizing common pitfalls and applying best practices is crucial for succeeding in real-world Ethereum development.

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   TechCentral·2y

   Bitcoin takes pain

   The crypto market is experiencing significant losses, marking its second worst weekly drop of 2024 due to cooling demand for bitcoin ETFs and uncertainty over US monetary policy. Bitcoin fell below $63,000, and ether and solana have faced their longest weekly declines in recent memory. Fund companies are gearing up to launch the first US ETFs investing directly in ether, while concerns over the Federal Reserve's interest rates persist.

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   Coins Bench·2y

   Understanding Solidity: A Simple simpleStorage Contract

   Smart contracts are essential for decentralized applications on the blockchain. This post explores a basic Solidity smart contract called `simpleStorage`, detailing how to store and retrieve data. It breaks down key components like the pragma directive, contract definition, state variables, and functions. Deployment tips using tools like Remix or Hardhat are also provided, along with use cases for future expansion.

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    Coins Bench·2y

    Solidity Tips and Trick

    Tips and tricks for learning Solidity, including using console.log, locking the pragma version, avoiding the Stack Too Deep error, splitting large contracts, reusing functions and structs, working with percentages, reading state variables, instantiating nested mappings, working with nested arrays, returning all elements in an array, iterating over a mapping, applying the principle of least privilege, validating external values, saving gas with events, using the uncheck keyword, understanding storage vs. stack variables, using keywords, choosing between mappings and arrays, and optimizing variable stacking.

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    Ethereum BlockChain Development·1y

    Forta!! The Ultimate Guide to Decentralized Security for Web3 Projects

    Forta is a decentralized monitoring network aimed at enhancing web3 security by providing real-time detection of threats and anomalies. It tracks vulnerabilities in DeFi applications, smart contracts, and other web3 platforms using a network of independent nodes. The system uses its native token to incentivize node operators to remain vigilant, which helps developers and investors secure their assets and avoid losses.

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    Coins Bench·2y

    A Simple Explanation of Ethereum Gas and Fees

    Understanding Ethereum gas and fees is crucial for efficient transactions on the network. Gas fees incentivize miners and validators, prevent spam, and manage network resources. Key components include gas price, gas limit, base fee, and priority fee, with the total fee calculated as Gas Used × (Base Fee + Priority Fee). The EIP-1559 update introduced a base fee burning mechanism to control supply and reduce inflation. Prioritizing transactions depends on network demand and appropriately setting the gas parameters helps ensure smooth operations.

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    Coins Bench·1y

    Web JavaScript Made Easy: Code Like a Pro in No Time

    This guide introduces beginners to Web3.js and its role in Ethereum development, covering prerequisites, installation, and interaction with the Ethereum network. It emphasizes the importance of foundational knowledge in JavaScript and blockchain basics before diving into Web3.js. Step-by-step instructions for setting up the development environment using NodeJS, Visual Studio Code, and Infura are provided. The post also includes resources for further learning about blockchain programming languages and tools for building decentralized applications.

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    Blockchain·2y

    Gas Fees In Ethereum: How Transactions Are Powered

    Gas is a unit that measures the computational effort needed for operations on the Ethereum network, such as transactions and smart contract execution. Users pay gas fees in Ether (ETH) to incentivize miners or validators. The gas limit is the maximum amount of gas a user will spend, while the gas price is the amount of ETH paid per unit of gas. High gas fees can lead to delays and higher costs during congestion, while Ethereum 2.0's shift to Proof of Stake and sharding aims to make transactions faster and cheaper.

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    Coins Bench·2y

    Automating Inheritance on the Blockchain with Etheritance

    Etheritance is a Solidity-based smart contract on the Ethereum blockchain designed to automate and secure the inheritance process. The contract allows parents or guardians to set conditions under which beneficiaries can withdraw funds, ensuring transparency and security. Key features include automated funds distribution, customizable conditions, and several security measures. While it has limitations such as handling simple inheritance structures and lacking dispute resolution mechanisms, future enhancements aim to address these issues.

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    Coins Bench·2y

    Learning to Call Smart Contract Functions with Web3.js

    This post explains how to use web3.js to interact with smart contracts on the Ethereum blockchain. It covers topics such as integrating web3.js into a project, fetching contract address and ABI, instantiating a contract, reading from a contract, and paying to a contract. It also mentions how to listen to events emitted by a smart contract.

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    Coins Bench·2y

    Solidity vs Rust vs Go: The Top Programming Language for Blockchain Technology

    Solidity, Rust, and Go are prominent programming languages in blockchain development, each offering unique strengths. Solidity is tailored for Ethereum smart contracts and dApps, Rust excels in performance and security especially in high-throughput systems like Solana and Polkadot, while Go is ideal for scalable blockchain infrastructures and cross-chain communication. The choice of language depends on project requirements, security needs, team expertise, and platform compatibility.

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    Coins Bench·2y

    A Basic Guide to Smart Contract Auditing for Beginners

    This guide outlines a systematic approach to auditing Ethereum smart contracts, covering essential steps such as understanding protocol documentation, identifying core contracts, mapping dependencies, focusing on public and external functions, and analyzing high-risk functions. Emphasis is also placed on the importance of testing, securing access controls, and considering upgradability and governance. While audits are crucial, they are not foolproof, and a multi-layered security strategy that includes continuous monitoring and bug bounty programs is recommended.

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    Coins Bench·2y

    Smart Contract Dev : Hands-On with Truffle, Ganache and Solidity

    This guide walks you through setting up a local Ethereum test environment using Truffle and Ganache, avoiding traditional testnets. It explains installing necessary tools, creating and compiling a smart contract with Solidity, and deploying and interacting with it using the Truffle console, providing a hands-on experience in smart contract development.

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    Developer Tech·2y

    Sony bets on Web3 with Soneium blockchain and incubation programme

    Sony Block Solutions Labs launched Soneium Minato, an Ethereum layer-2 testnet, and the Soneium Spark incubation program to promote Web3 technology. Aimed at mainstream adoption, the initiatives offer a public blockchain testnet and resources to support developers and creators in building innovative solutions. Soneium Spark provides mentorship, strategic partnerships, and up to $100,000 USD in investments per team, focusing on areas like DeFi, NFTs, gaming, and social applications. Applications open in mid-October with the program running through the following months.

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    Coins Bench·2y

    Blockchain-Based ROSCA: Implementing On-Chain Verification for Secure Fund Claims

    By implementing a Rotating Savings and Credit Association (ROSCA) on the blockchain, traditional cooperative savings and lending methods are enhanced with decentralization, transparency, and automation. Using smart contracts, participant registration, contribution collection, recipient selection, and on-chain verification are efficiently managed. This approach reduces reliance on mutual trust and provides increased security and reliability.

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    Coins Bench·2y

    Building a NestJS API to Extract Prices from Thena Protocol

    This tutorial guides you through setting up a NestJS API that interacts with Ethereum-based contracts to fetch and process token prices from the Thena protocol. It covers prerequisites, setup, Ethereum service, ERC20 service, and THENA service.

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    Coins Bench·2y

    From Code to Crypto: Writing Your First Smart Contract with Solidity

    Web3 represents a decentralized version of the internet, leveraging blockchain technology to empower users without relying on centralized authorities. A blockchain is a tamper-proof distributed ledger where each verified entry becomes a permanent record. Solidity, a high-level programming language, is used to write smart contracts that run on the Ethereum blockchain. When executing smart contracts, users must pay for computational work with 'gas' measured in Ether. Useful tools like Remix IDE and Metamask facilitate smart contract development and deployment.

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    Coins Bench·2y

    Building Blocks of Smart Contracts: Libraries in Solidity

    Solidity libraries are tools for organizing and reusing code, promoting modularity, reusability, and gas efficiency in Ethereum smart contracts. Libraries differ from standard contracts in that they don't store state variables and focus on 'pure' and 'view' functions. They can be deployed either internally or externally, the latter using delegate call for efficient updates and reduced gas costs. Examples include SafeMath for safe arithmetic operations and MerkleProof for data integrity checks.

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