Zanii proof

Receipt sha256:92dd1a42de889ee3939aca2513dfbef62ed1ac28ac1ffdd3cedaf4bf5846c00b — leaf #4299

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": "2026-08-17T02:00:38.852Z",
  "sig": "ed25519:c79fa979a572970629febfe4a7c0249d676582a93d7154c1b404708cd78e47e035b264c0e880e2a3ca768b3cbff66d394fa75aecb43bf5e3b771da137802bf02",
  "prev": "sha256:757030491d3c309fc4eb641a03995c18625b2a5e5701a96b3c7a133321e06c6b",
  "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": "sha256:3b97a40ccbdef892ab1d0b2e7689afe6507cca2a64df0904fc7a9341328381b1"
}

Inclusion proof

{
  "index": 4299,
  "tree_size": 4353,
  "path": [
    "6666526326051c85272da73432118e6a8e57d47adaa70c2b96f48ac5be044a1e",
    "538449c05ef958c1720c05fc448abf3591cc7a063989c549d69c1fa8ae3e19df",
    "21a6ffb35242756ee7a82dfa78e8dbcd7c5e18fc3330a389da9f75c11a9ad84e",
    "28600238c76f33a9624a0b3aacb16718c8e64d73a812f7e88a9f141fbd5d4915",
    "58562a4766374dbe95ab511580fbf2082c30b5fe8695fed67a1cb5acf663a6d7",
    "158cf90f6faafa50cc2f17c4b659f3fdc48d7bb72db4f3f70d02b6899bfefe2f",
    "bd6edc80207da4c7f0a0bdd3f938a10e2ada8fbddc42bb435c91765b0d1bb138",
    "c637f01862845285c6d3a433e3799ef91188a736c1c784c922ba56446a52c75b",
    "cc6be04373f43c05afaab5f1bb350502d06cff2a9eadd5803cfc41464f822b04",
    "c3310bbc7505d7ab6534f5142146d3f686b80a369526056f43a3c77e2dc4240a"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 4353,
  "root": "sha256:9b710a4755e52983ef28d15ee7b32ff5cb0e058cf326c9999c89bf56cecb783c",
  "ts": "2026-08-17T12:26:38.056Z",
  "sig": "ed25519:7a85f7d3f8fa18a88c9c3d0325583148223ce33987e9dbe2ba2f2e1ff7270f8ac999de6bd816c80b63194cc0b58460179126563e1d0fb0efe6ad90051b7c020f"
}

Verify independently

curl {this host}/v1/proof/sha256:92dd1a42de889ee3939aca2513dfbef62ed1ac28ac1ffdd3cedaf4bf5846c00b

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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