Withdrawal notice
This standard has been withdrawn and its normative content removed. It defined an optional latched transfer profile (v3 provenance, O(1) verification) for 1Sat Ordinals tips held in basket 1sat.
The author withdrew it because HandCash is not shipping the hardened Commit/Settle path that made the profile distinct; soft-latch tip naming alone did not justify a separate standard.
Interoperable tip→origin provenance is BRC-150 — 1Sat Provenance Remittance for Basket 1sat. Implementations that referenced this document should read BRC-150 instead. Basket custody remains BRC-147.
BRC number 156 is retired and will not be reassigned. This file remains only so that existing references resolve.