EtherAuthority creates smart contracts including: DeFi, NFT, DAO, Metaverse, Gaming, DEX, Launchpad, L1 Blockchain, Escrow, Cross-chain Bridge, and many more.

Solidity contract for storing verified X.509 certificate chains in parent pointer trees on ETH blockchain

CityDAO's Solidity smart contracts

master cheatsheet for solidity developers

[crypto] A collection of the smart contracts for unreleased decentralized applications I've made, each with their own description, functionality, and truffle tests. Feel free to utilize or improve on them.

High level implementation of the ERC-20 tokens contract

The practice of working with Uniswap: creating a pair for two tokens and swaping.

This is a working repo of @EthereumCommonwealth audits. We performed more than 400 security audits since 2018. Not even a single contract was hacked after our auditors approved the code. Accepting audit requests here.

solidity

A DApp that deploys a local IPFS node and provides a minimal frontend for interacting with IPFS.

ポチ袋に ETH を入れて、お年玉を送ろう

This blockchain node network protocol is built on Solidity, leveraging advanced AI-driven algorithms to enhance the robustness, security, and scalability of decentralized networks. Our protocol is designed to support next-generation decentralized applications (dApps) and smart contracts, providing a foundation for building secure, efficient, future

Fungible ERC-20 token implemented on Ethereum with blacklist feature

Sample contracts written while learning solidity basics.

Voting Smart Contract using Solidity

Simplest example of a hardhat project, useful for getting started

Zero Sized Contract Attack

Overflow vulnerability in Solidity ( v0.6.12 )

Web3 Platform that rewards you ETH for Smiling

create a Solidity smart contract that accepts two user addresses to automate the creation of joint saving accounts.