This project is a proof-of-concept using Heirarchical Deterministic Keys (BIP 32) in a J2EE environment. It uses BitcoinJ 0.10 for the bitcoin protocol.

A private key tree is created (in practice this needs to be created locally). A public key tree is created from a branch off the private tree. Addresses are created off the public key tree and displayed for each web request. A Watch-only wallet is created to handle incoming coins. A ping service is used in conjunction with the private key tree to return coins to testers. This project runs on TestNet3. Use at your own risk.