{
  "anchors": [
    {
      "anchored_at_utc": "2026-10-01T19:30:20Z",
      "date": "2026-10-01",
      "history_log": {
        "chain_head_sha256": "4843094806fd182500739fc3d92287e275df2405a3ae1c450cecd72721386188",
        "leaf_count": 35287,
        "merkle_root_sha256": "6b753eee416db77c71ffc5b0deac2edb55ebdb771b9c14d57996a92adc52db1f"
      },
      "internet_archive_snapshot_url": null,
      "opentimestamps": {
        "proof_url": "/v1/free/observatory/anchors/files/2026/10/01/193020Z.chain_heads.json.ots",
        "repository_path": "agent_economy/anchors/2026/10/01/193020Z.chain_heads.json.ots",
        "status": "PENDING_CALENDAR_CONFIRMATION"
      },
      "other_chain_heads": {
        "observatory_change_log": {
          "entries": 311,
          "head_sha256": "32b4f8c7d3ce9be39f7cc32ede34bf0b65cd09314bdb3e07d61e4bf042ed4e46",
          "panel_cohort": "2026-10",
          "panel_membership_sha256": "2233a448bbd86b8bad7ba29f7cf1532f7dca5bfbe5e851e72d976e4ef7dcb5b5",
          "panel_size": 4157
        },
        "shop_panel_change_log": {
          "entries": 8,
          "head_sha256": "df0c1bf26f3ea63cd581a2a657084ff123fd34c5762027715340a0e413651c5f",
          "panel_cohort": "shops-2026-10",
          "panel_membership_sha256": "5f5ebd61bf989c85cd3968aef195b511bc4afb44c7ade9e0345c18ecc1e1874f",
          "panel_size": 392
        }
      },
      "rekor_log_index": 3040103171,
      "rekor_search_url": "https://search.sigstore.dev/?logIndex=3040103171",
      "signed_document_sha256": "0398a5b44669ede5130c13c5ca2f5c0d2e918b766ad918ab021bcfe9332a4b3a",
      "signed_document_url": "/v1/free/observatory/anchors/files/2026/10/01/193020Z.chain_heads.json",
      "signing_identity": "https://github.com/tjcgraham-rgb/-gaip-agent-to-art-prototype/.github/workflows/gaip-history-anchor-v1.yml@refs/heads/main",
      "sigstore_bundle_url": "/v1/free/observatory/anchors/files/2026/10/01/193020Z.sigstore.json"
    }
  ],
  "anchors_kept": 1,
  "automatic_evidence_credit": 0,
  "continuity": "If GAIP stops, the record and how to check it are described in GAIP's record continuity note (agent_economy/governance/GAIP_RECORD_CONTINUITY.md).",
  "first_kept_anchor_date": "2026-10-01",
  "how_to_verify": [
    "Download the signed document (signed_document_url) and its Sigstore bundle (sigstore_bundle_url).",
    "cosign verify-blob --bundle <bundle> --certificate-identity <signing_identity> --certificate-oidc-issuer https://token.actions.githubusercontent.com <document>",
    "Look the entry up in the public Rekor log: https://search.sigstore.dev/?logIndex=<rekor_log_index>.",
    "OpenTimestamps: ots verify -f <document> <proof> (needs a Bitcoin node or a block explorer check).",
    "Compare the chain heads in the document with /v1/free/receipts/transparency and /v1/free/observatory/summary."
  ],
  "licence": "The chain-head digests and anchor records are public facts published so anyone can check GAIP's record; aggregate Observatory figures they commit to are CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/).",
  "proof_boundary": "An anchor shows that the listed chain-head digests existed no later than its Sigstore/Rekor entry, its OpenTimestamps proof (once Bitcoin-confirmed) and its Internet Archive snapshot. It does not prove event truth, identity, adoption, value or outcome, and GAIP does not re-verify the proofs when serving this list: check them yourself with the steps below.",
  "schema_version": "gaip.record-anchors.v1",
  "witnesses": [
    "SIGSTORE_REKOR",
    "OPENTIMESTAMPS",
    "INTERNET_ARCHIVE_WEEKLY"
  ]
}