Corpus / Epoch
Corpus / Epoch is the operator view for corpus lineage, replay coverage, migration evidence, and reset verification.
Key fields
- active and prior epoch identifiers;
- engine, catalog, inventory, and capability fingerprints;
- projected and actual replay coverage;
- per-identity replay outcomes;
- eligible and excluded evidence counts;
- exclusion reasons;
- old-versus-new counts;
- protected-store attestations;
- stage completion and final reconciliation.
Replay outcomes
replayed means the claim was re-adjudicated under the pinned campaign. unrescorable_skip means the
legacy record lacked enough authoritative metadata for honest replay. A skip is preferable to an
invented denominator.
Fresh starts
A low-coverage activation requires explicit fresh-start acceptance. The historical scientific record is preserved as Legacy Epoch 0 while the new active corpus begins with only eligible replay results.
Green verification
Do not treat an activation as complete until verification reconciles replay counts, corpus eligibility, epoch stamps, append-only decisions, trial accounting, holdout state, and protected hashes.
See Run a corpus epoch for the guarded workflow.