handshake-org/urkel

Urkel is a cryptographically provable key-value store optimized for performance, simplicity, and compact proof sizes. It was designed as an alternative to Ethereum's trie for the Handshake protocol, offering 100x+ speedup by storing nodes in flat files and maintaining only two node types. The project is ideal for developers building consensus applications requiring efficient, verifiable data storage and retrieval, particularly in blockchain or distributed systems contexts.