641 Open source projects that are alternatives of or similar to challenge

Message encoder/decoder and password hasher for the NTLM authentication protocol

Social impact bond implemented on Ethereum

A SDK for implementing blockchain-based digital currencies

☠️ The Pathwar Project ☠️

🧰 Export Solidity contract ABIs on compilation ⚙️

A high-level language for Dune Network (and Tezos) with OCaml and ReasonML syntaxes, with a decompiler from Michelson

Reference DAML application demonstrating a bond issuance use case.

No description or website provided.

This project is to create a system that uses DeFi technology to enforce contracts. Users will be able to set up contracts between each other, this includes an escrow service for payments. If users disagree over whether a contract was fulfilled, a jury appointed by the system will make the final decision.

The Non-Fungible Token standard on the Flow Blockchain

IDE for waves blockchain RIDE language

Ethereum smart contract fuzzer

Backend code challenge

Skycoin Core and Wallet

Desafio do quarto módulo do Bootcamp GoStack 🚀👨🏻‍🚀

A Web UI for creating, editing and testing Accord Project templates

A series of notes that were taken during the ConsenSys Academy program.

☁️ 🚀 📊 📈 Evaluating state of the art in AI

Ethereum contract for Bitcoin SPV: Live on https://etherscan.io/address/0x41f274c0023f83391de4e0733c609df5a124c3d4

🃏🎮A NFT(ERC721) card game build on Ethereum, Truffle, Ganache and hosting on IPFS.

An advanced Ethereum mobile wallet

Collection of Smart Contract for Stacks Blockchain in Clarity

Repositório de hackathons do Training Center

Repository responsible for 25 days of Serverless challenges

Understanding JavaScript and coding without the help of a library or tool

Official Go implementation of the IOST blockchain

An up to date and bare minimum tutorial on deploying smart contracts with python

xView 2018 Object Detection Challenge: YOLOv3 Training and Inference.

Smart contracts for Ampleforth Protocol (working name uFragments)

Security analysis tool for EVM bytecode. Supports smart contracts built for Ethereum, Hedera, Quorum, Vechain, Roostock, Tron and other EVM-compatible blockchains.

Tezos FA2 NFT CLI Tool And Tutorial

🎨 Pix is an online pixel art community where everyone can unleash their creativity on a 16x16 canvas, built with React-Native for iOS devices. 🚀

General interoperability framework for trustless cross-system interaction

blockchain basis,logic,usage

Desafio do sexto módulo do Bootcamp GoStack 🚀👨🏻‍🚀

Smart contracts Genesis Vision platform

🖖 Web3.js module integration for Nuxt 2 ( Nuxt 3 under development )

Includes codes from coding competitions and contests over the internet. Languages:- Python3 and C++

A factory contract for creating metamorphic (i.e. redeployable) contracts.

Cryptocurrency study materials resources

A decentralized protocol for NFT fractionalization

Can you create something cool without modern tools?

HKUST university research. Supervised by prof. HUI Pan and Dr. Dimitris Chatzopoulos.

Ethereum Smart Contracts Security CheckList From Knownsec 404 Team

Smart Contract Vulnerability Detection Using Graph Neural Networks (IJCAI-20 Accepted)

[SPOILER ALERT] My attempt at tackling the x86_64 asm riddles in xorpd's xchg rax,rax book. Pull requests welcome.

A php interface for interacting with the Ethereum blockchain and ecosystem. Native ABI parsing and smart contract interactions.

EDEN - EDN Smart Token & Smart Contracts

No description or website provided.

Code Problems from LeetCode website and other fun code problems websites. The goal is to help people studying for coding interviews.

The RHme2 (Riscure Hack me 2) is a low level hardware CTF challenge that comes in the form of an Arduino Nano board. The new edition provides a completely different set of new challenges to test your skills in side channel, fault injection, cryptoanalysis and software exploitation attacks.

The Baseline Protocol is an open source initiative that combines advances in cryptography, messaging, and blockchain to execute secure and private business processes at low cost via the public Ethereum Mainnet. The protocol will enable confidential and complex collaboration between enterprises without leaving any sensitive data on-chain

Elegant Web3js functionality in Swift. Native ABI parsing and smart contract interactions on Ethereum network.

A weekly challenge where we share some code and you find a bug in it.

DataScience projects for learning : Kaggle challenges, Object Recognition, Parsing, etc.

Completing 100DaysOfCode challenge by making 1 project every day using JavaScript for next 100 Days.

A guide to smart contract security best practices

At any time, the size of the world border is equal to your level count

The Plutus language implementation and tools