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Cap is a lightweight, modern open-source CAPTCHA alternative using SHA-256 proof-of-work
A collection about awesome blockchains - open distributed public databases w/ crypto hashes incl. git ;-). Blockchains are the new tulips 🌷🌷🌷. Distributed is the new centralized.
A no-nonsense CAPTCHA system with seamless UX | Backend component
GDPR, WCAG 2.2 AA, and EAA compliant, self-hosted CAPTCHA alternative with PoW mechanism and advanced anti-spam filter.
a memory-bound graph-theoretic proof-of-work system
Go Implementation of the Spacemesh protocol full node. 💾⏰💪
The widget and docs for the proof of work challenge used in Friendly Captcha. Protect your websites and online services from spam and abuse with Friendly Captcha, a privacy-first anti-bot solution.
Escalation of Privilege to the root through sudo binary with chroot option. CVE-2025-32463
Project dedicated to fight Layer 7 DDoS with proof of work, with an additional WAF and controller. Completed with full set of features and containerized for rapid and lightweight deployment.
git is a blockchain. Start your commit hashes with 00000000 like a real blockchain should.
JeChain decentralized application platform and smart contract blockchain network
blockchain (crypto) tools, libraries & scripts in ruby
A SDK for implementing blockchain-based digital currencies
C/C++ implementation of Ethash and ProgPoW – the Ethereum Proof of Work algorithms
This is my attempt to list all possible blockchain consensus out there, i welcome pull request of the blockchain community! lets make it the main reference for blockchain consensus
⋰·⋰ Feeless is a Nano cryptocurrency node, wallet, tools, and Rust crate. https://feeless.dev/
BitCore (BTX) - Cryptocurrency 220 Byte Datacarriersize
Simple javascript proof-of-work based access for Nginx with virtually no overhead. (Similar to Cloudflare's anti-DDoS feature)
⛓✨ Interactive blockchain built with Node.js