I've been hard at work completing an open source Ruby gem library (called MoneyTree) that implements Hierarchical Deterministic Bitcoin wallets (BIP32), and it's about ready for release. It passes all of the test vectors and has 100% code coverage. I've also written an extensive README which goes into depth about HD Wallets, which I'll probably be turning into a blog post.

However, I'm pretty new to crypto, so I wanted to run it by this group first before releasing it. If anybody has knowledge of BIP32 and can give at a review, I would greatly appreciate it, and would be glad to add you as a contributor.

If you have knowledge of the BIP32 spec, but not Ruby, you can still help by reading over my README for conceptual accuracy.

Check out the repo here: https://github.com/wink/money-tree

Thanks in advance,

Micah Winkelspecht