BIP44

An implementation of the BIP44 spec for organizing Hierarchical Deterministic Bitcoin addresses. Based on the BIP32 spec.

Examples

var bip44 = Bip44("<some hex seed>");
List<Account> accounts = bip44.coins[0].accounts // coin 0 is bitcoin

Discovery

The specification mandates that accounts, and ultimately addressess, are discoverable. Currently only two remote sources can be queried: Blockchair and Blockstream. The Scanner interface should make it easier to add sources.

Supported coins

It is trivial to add more iff the coin appears in SLIP44.

• Bitcoin
• Testnets
• Litecoin

Installing

Add it to your pubspec.yaml:

dependencies:
  bitcoin_bip44: ^0.1.0

TODO

• Make the scanners robust versus exceptions thrown by the remotes
• Add Scanner for locally run Bitcoin node
• Only the first scanner is ever used
• Only traditional Bitcoin addresses (starting with a '1') are scanned for, add segwit
• Add 'Address gap limit'
• Cache address scanning

Licence overview

All files in this repository fall under the license specified in COPYING. The project is licensed as AGPL with a lesser clause. It may be used within a proprietary project, but the core library and any changes to it must be published online. Source code for this library must always remain free for everybody to access.