{
  "recorded_at_utc": "2026-09-24T01:37:31.457892+00:00",
  "scope_changed": false,
  "changes": [
    {
      "event": "Official OECD ZIP returned HTTP403 in this environment",
      "action": "Use the same OECD regular 2022 file preserved in WorldBank institutional archive catalog511; catalog identifies January2026 vintage and archive hash report matches extracted table; no current direct-OECD-byte-equivalence claim"
    },
    {
      "event": "Source matrix identities fail the conservative four-decimal rounding envelopes in123output rows and26input columns",
      "action": "Original balance tolerance is retained and failures disclosed. Do not rebalance Z,x,VA orTLS. Compute original estimand and explicitly carry an unallocated source-balance account, with net and absolute propagated magnitudes for each export cell. Never call this all rounding or a confidence interval."
    }
  ],
  "validation_status": "Numerical checks are distinct from source-balance warnings; source imbalances remain unresolved at producer level."
}