BIP-329 is a Bitcoin Improvement Proposal that specifies a standard, wallet-agnostic format for exporting and importing wallet labels. It defines a JSONL structure associating human-readable labels and metadata with transactions, addresses, inputs, outputs, and extended public keys. The standard improves portability of bookkeeping and provenance information between wallets, which is valuable for asset tracking and compliance in Taproot-asset and multi-wallet workflows.
Content
- Each line of the JSONL export ties a label and optional fields to a referenced object such as a transaction or address. By standardising this previously proprietary data, BIP-329 enables users to migrate wallets without losing the contextual annotations needed for accounting and provenance.