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Synthetic data only · case:synthetic-public-diff

Public-data change

Did the synthetic public register change between two versions?

syntheticpublic-datadiffA deterministic comparison of two versions that shows an observed difference, not its cause.Synthetic reference fixture
Case status
Investigating
Data class
synthetic
Last updated

Verification paths

One question — four honest outcomes

BaselineNegative checkAbstentionCorrection

The owner corrected a snapshotAn immutable control copy of an open dataset or page at a defined point in time.: the diff was recomputed and the previous claimAn atomic, verifiable statement linked to evidence, a coverage envelope and separate human assessment dimensions. is marked corrected with a new version.

Overview

Verifiable brief

The question is defined before search and the conclusion boundary is stored separately.

Research question

Did the synthetic public register change between two versions?

en · synthetic

Conclusion boundary

The observation applies only to the two snapshots and complete pages available at review time.

bounded

Audit chainA log where every event is linked to the previous event hash, making later undisclosed alteration detectable.

Decision timeline

  1. Source PassportA versioned source record describing ownership, legal basis, coverage, freshness, risk and collection-admission state.Synthetic fixtureA deterministic record created for repeatable testing that represents no real person or event.source:public-data-change
  2. ClaimThe second synthetic register version changed one record's status in the checked interval.claim:public-data-change

Audit chain verified · 13 events · sha256:synthetic…