Zanii proof

Receipt sha256:5b97d08f2f0082a2330b3a2cf47095619ea15bef439f25934488e1b2de1bf968 — leaf #4178

Verification PROVEN

✔Receipt signature, delegation chain, and scope — signed by did:key:z6MkksYZxAX4EpiA…

✔Delegation not revoked

✔Merkle inclusion proof against current tree root

✔Signed tree head signature — log did:key:z6Mkt3UL3dCEigCh…

Anchoring

✔Covered by anchor at tree size 4353 — zanii:34fcb38c67663e785816996c5a2fec034dbdf3dcf0be246a0670d36330b59eb1 (block 21693)

Receipt

{
  "v": 1,
  "ts": "2026-08-14T02:01:25.399Z",
  "sig": "ed25519:6408e8c57ef4666a93d1f3b8b0842f1a167fc775082c9c5366d2220cd2b03f02ca6648bc6585a1ff885447c04546231d04389b020f5a6619bf5e6a9b0e684803",
  "prev": "sha256:df92644e801c49b6119abb876c9179dcc0870561329510e68c83202b1aedfcfb",
  "action": "tool_call",
  "target": "ads.investigate.evidence",
  "agent_id": "did:key:z6MkksYZxAX4EpiAetcDB3uN9w1FY7LjriS966ZPCTMtCzXt",
  "delegation": [
    {
      "v": 1,
      "exp": "2027-07-06T21:17:24Z",
      "sig": "ed25519:d7ddef78324cfcbfe417611c4f135cbbcc2858ea076ddf7d8a0c41c6edc0c9aab906fc175bd92614c54d9ba76891a94941a7b9d7fa560be9c1588755c962bc08",
      "issuer": "did:key:z6MksQZm73wT4p97GUjdKC4SJxgsm8dzizoLCBE8U2QRRZBb",
      "scopes": [
        "ads.investigate.*"
      ],
      "subject": "did:key:z6MkksYZxAX4EpiAetcDB3uN9w1FY7LjriS966ZPCTMtCzXt"
    }
  ],
  "subject_tag": "sha256:51e5d015a51da3d46d7f5f5ea126970d229e7297aef867b87096085ffc33e42d",
  "payload_hash": "sha256:d464aca9c3166c8e8b443f01fc85fe1b8b91df6e02b5562d3ec718bff167f533"
}

Inclusion proof

{
  "index": 4178,
  "tree_size": 4353,
  "path": [
    "3bed9b2dc050a158a0dbda5e7446338a2b96cf159d1f6a582627fbddadc33f4f",
    "18f3f62e22826d238fc9ae4b7b84e521c67052e6c74863f6d1839880bf0ec12a",
    "a4a4ccc343e7560fb07e8c940f173708838d3307ea9bd099775bbf136756ef71",
    "6e76ceeca71480c081a359189d8cd3be84dc8ba4c1d2bb0affb5928a8e074cc7",
    "4a6cd9de44f0fb7fd004cc86b773ba8f0d33adbea74bec461446a06de4fdd875",
    "fbfa2499d1446ac4835ac03eda59545a46f624fd4acbda713f02dfd49dd5c381",
    "736a081e54e8bed6664b7451e3b58877be18a93b4719b4c022b25f6747d2a5bf",
    "d109c4a5ddc4246146e92d0a889a2505421503b74b8e4556889e000a44ac89a8",
    "cc6be04373f43c05afaab5f1bb350502d06cff2a9eadd5803cfc41464f822b04",
    "c3310bbc7505d7ab6534f5142146d3f686b80a369526056f43a3c77e2dc4240a"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 4353,
  "root": "sha256:9b710a4755e52983ef28d15ee7b32ff5cb0e058cf326c9999c89bf56cecb783c",
  "ts": "2026-08-17T12:26:39.059Z",
  "sig": "ed25519:2321e92eb2a87f1ed230b9c8e9591f7b30b7850f42342141a59283cfc077f7f900abd07aa9c9ac1532e8be7df364bd10c63b6e93e3af07fed1868a95eee90f01"
}

Verify independently

curl {this host}/v1/proof/sha256:5b97d08f2f0082a2330b3a2cf47095619ea15bef439f25934488e1b2de1bf968

Anyone can re-verify with the zanii SDK (Python or TypeScript): receipt signature → delegation chain → scope → Merkle inclusion → STH signature. No trust in this server required.

Scan to verify on your phone

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