Cap is a lightweight, modern open-source CAPTCHA alternative using SHA-256 proof-of-work
Internet History, Digital Cryptography, Cypherpunks, Money \ Economics... All the history is related to Bitcoin.
Pure PHP implementation of Hashcash 1.
Protect online forms from spam by making them perform Proof of Work (PoW).
Hashcash implementation in ES6 / Javascript
Hash based proof of work in Electrum protocol
Proof of work similar to Hashcash, based on BLAKE2b, written in JavaScript and WebAssembly
hashcash a Go library which implements the hashcash proof-of-work algorithm.
A toy implementation of a tcp server with its own simple text protocol with content protection from ddos attacks using proof of work.
React Native C++ turbo module for the new architecture which implements SHA-256 based Hashcash algorithm against brute-force
A hashcash proof of work implementation for Dart and Flutter
ZeroTier-compatible cryptography library for Rust
This repository is proof of concept that implement proof of work system in PHP, javascript, and web assembly.
Proof-of-work based challenge-response TCP server
Golang implementation of hashcash algorithm
JSON Work Proof - proof-of-work algorithm encoded like a JWT
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