Recall Freshness and Supersession

These examples and illustrative results are independently authored teaching materials, not measured model results.

Use case

Old release decision M1 retains its bytes/hash, but the current issue records rollback and M2 explicitly withdraws it. Answer present state rather than replaying M1 approval. Teaching records share one candidate task, with inspectable timestamps and supersession.

Mechanism

Read current authoritative sources and check scope, observation time and corrections. When record maintenance is authorized, mark M1 superseded by M2 with a reason; ordinary recall excludes it as current, while historical reads retain content/status. A link alone does not perform supersession; establish the record system’s semantics.

Bad example

M1's unchanged hash proves continuing release permission. Ignore the rollback issue/M2 and treat M1 as a live instruction.

Good example

Check the task's current issue and M2, reporting rollback and withdrawal. Treat M1 as historical with explicit replacement/time. In authorized records mark superseded by M2 while retaining old content. Do not reuse it as current approval. State the corrected handoff's next check; byte integrity is not continuing authorization.

Why the change matters

A hash establishes unchanged old bytes, not applicability. Explicit supersession separates history/current decisions and prevents a more similar old record from outranking a correction.

Observable expectation

Current teaching recall returns rollback/M2, not active M1 approval. A historical ID lookup retains M1 plus its superseded status.

Inspect links, status and matched scope. A mere M2 link with active M1, or acting from hash integrity, fails.

Limits

Supersession needs source/scope evidence; a newer note does not automatically replace everything older. Maintenance needs authorization, and history does not authorize sending/access/release. Unreadable current sources leave state unconfirmed.