# Synthetic comprehension-preserving patch

Status: candidate pending executable verification and human-owned acceptance.

Provenance: written as a protocol fixture. It is not output from a named model,
Brian's code, or evidence about the behavior of AI assistants.

The patch places classification, receipt creation, and account credit inside
one transaction. A transition or receipt failure rolls both state collections
back. Exact duplicates remain accepted without another credit. A conflicting
payload is refused without mutation.

This design assumes receipt and account state share one transactional resource.
It must be reconsidered when acknowledgement, ownership, or storage boundaries
make that assumption false.