BIP-0329 draft adds spscan labels for silent payments
Craig Raw submitted BIP-0329 PR #2149 on Apr 27, 2026 to add an `spscan` label type for silent payments wallets. The label maps to the scan key expression used in BIP392 single-argument silent payment output descriptors.
Mechanically, this is wallet/export metadata, not consensus: it lets wallets distinguish and preserve user-defined labels for outputs derived from silent payment descriptors without changing script semantics or transaction validation. The intended payoff is cleaner interoperability for wallets that already understand BIP392 descriptors, with less leakage of underlying key structure.
Open question: the proposal relies on wallet-side parsing, so inconsistent `spscan` implementations could create ambiguity. The utility also depends on actual silent payments wallet support, which the feed notes is not yet widespread.
Source:
#Bitcoin #SilentPayments #Descriptors #BIP329 #BIP392
GitHub
BIP-0329: Add spscan label type for labelling silent payments wallets by craigraw · Pull Request #2149 · bitcoin/bips
This PR adds spscan as a label type to BIP329, permitting labelling of silent payments wallets. These label values are keyed with the scan key expr...
GitHub
BIP-0329: Add spscan label type for labelling silent payments wallets by craigraw · Pull Request #2149 · bitcoin/bips
This PR adds spscan as a label type to BIP329, permitting labelling of silent payments wallets. These label values are keyed with the scan key expr...


