Smart Contracts Programming Tutorials, Guides & Best Practices

• Description: A powerful and feature-rich library for Bitcoin and blockchain-related applications, built by the developers behind BitPay.
• Use Cases:
• Create Bitcoin wallets and manage keys.
• Develop custom Bitcoin transaction scripts.
• Build and query Bitcoin blockchain services.
• Key Features:
• Comprehensive support for Bitcoin development.
• Provides tools for both full-node and SPV (Simplified Payment Verification) implementations.
• Includes utilities for working with Bitcoin cash and other forks.
• Installation:

  npm install bitcore-lib

• Description: A decentralized storage network built on top of IPFS.
• Key Features:
• Provides verifiable, decentralized storage with economic incentives.
• Allows users to rent out unused storage space.
• Integrates seamlessly with IPFS for decentralized file storage.
• Ideal for storing large datasets and DApp data.
• Website: Filecoin

• Description: A blockchain-based storage solution for permanent, low-cost data storage.
• Key Features:
• Stores data permanently with a one-time fee.
• Uses a unique consensus mechanism called Proof of Access.
• Integrates with Ethereum for storing DApp data, NFTs, and more.
• Scalable and reliable for long-term data storage.
• Website: Arweave

     require("@nomiclabs/hardhat-waffle");

     module.exports = {
         solidity: "0.8.0",
         networks: {
             ropsten: {
                 url: "https://ropsten.infura.io/v3/YOUR_INFURA_PROJECT_ID",
                 accounts: [`0x${YOUR_PRIVATE_KEY}`]
             }
         }
     };

• Deploy the contract to the testnet: