Blockchain

Ebooks

BLOCKCHAIN - CRYPTOCURRENCY	BLOCKCHAIN - CRIPTOMOEDAS
Dive into the universe of blockchain and cryptocurrencies that is revolutionizing the world! In this content, the disruptive power of this technology will be explored, ushering in a new era of decentralization, transparency, and security. THIS CONTENT IS NOT ANY INVESTMENT RECOMMENDATION, IT IS FOR EDUCATIONAL PURPOSES ONLY!	Mergulhe no universo do blockchain e das criptomoedas que está revolucionando o mundo! Neste conteúdo, o poder disruptivo dessa tecnologia será explorado, inaugurando uma nova era de descentralização, transparência e segurança. ESTE CONTEÚDO NÃO É NENHUMA RECOMENDAÇÃO DE INVESTIMENTO, É APENAS PARA FINS EDUCACIONAIS!

Links

• TOKEN2049 - International conference focused on blockchain, cryptocurrencies, and Web3, bringing together companies, developers, investors, and industry experts.

• LF Decentralized Trust - Foundation focused on developing open-source distributed ledger (DLT) and blockchain technologies.

• Use Cases - Consensys - Collection of blockchain use cases and case studies showing how the technology is applied across different industries.

• Use Cases - Brazil - Collection of blockchain applications and initiatives in Brazil.

• Hardhat - Development environment for building, testing, debugging, and deploying Ethereum smart contracts and applications.

• Remix IDE - Online IDE for developing, compiling, testing, and deploying Solidity smart contracts.

• Solidity - Official documentation for Solidity, the programming language used to develop Ethereum smart contracts.

• Ethereum Improvement Proposals (EIPs) - Repository of technical proposals documenting standards, improvements, and changes to the Ethereum ecosystem.

• OpenZeppelin - Platform providing secure, reusable smart-contract libraries and development tools for blockchain applications.

• OpenZeppelin Wizard - Tool for generating smart contracts based on OpenZeppelin’s reusable contract libraries.

• ethers.js - JavaScript/TypeScript library for interacting with the Ethereum blockchain and smart contracts.

• InterPlanetary File System (IPFS) - Decentralized protocol for storing, addressing, and sharing files based on their content rather than a central server.

• Bitcoin Explorer - Blockchain explorer for viewing Bitcoin addresses, transactions, and blocks.

• Electrum - Bitcoin wallet for managing keys, addresses, and transactions.

Examples

• Blockchain - Console application in C#/.NET that implements a blockchain from scratch, featuring transactions, block hashing, proof-of-work mining with difficulty and miner rewards, chain validation, and a tampering attempt demonstration.

• Solidity Contracts - Hardhat project with smart contracts built on OpenZeppelin: an ERC-20 fungible token (Token) with burn, pause, and permit support; an ERC-721 non-fungible token (NFT) with IPFS metadata; and a soulbound token (SBT), a non-transferable NFT. Includes automated tests and TypeScript typings.

• Solidity DAO - Hardhat project implementing a Decentralized Autonomous Organization: an ERC-20 governance token with voting power (DaoToken), a governor contract (DaoGovernor) with configurable voting delay, duration, quorum, and timelock execution, and a Box contract managed through on-chain proposals.

• Solidity Pokemon - Hardhat project with an on-chain Pokemon game built as ERC-721 NFTs, where each Pokemon has elements and attributes, can battle other Pokemons, gain attribute increases, and evolve, with results emitted as blockchain events.

• Wallet - Node.js script that generates a Bitcoin HD wallet, creating a BIP39 mnemonic phrase, deriving keys via BIP32/BIP44, and producing a SegWit (P2WPKH) testnet address with its private and public keys.

Production

npx hardhat keystore set RPC_URL

npx hardhat keystore set PRIVATE_KEY

npx hardhat keystore set ETHERSCAN_API_KEY

pnpm deploy