Zanii proof

Receipt sha256:e928da3349b6d54bce68857b7afa307a7b90e8f93ab117f9885e69a487c22f65: leaf #19578

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 104846 - evm:782450cadd6bd9bd0a1c694df8683b9880ca52746f58afb872a3c6cb6478c5bf (block 52890292)

Receipt

{
  "v": 1,
  "ts": "2026-09-24T08:14:58.676Z",
  "sig": "ed25519:805377b43e5628e6fcb9a4e98d96319799addcc887a53460b341f53cae0aebf40432aa05fda2d4839a5291739d2c8544fc0d182721bcea4ec9cb8455fc8cbb08",
  "prev": "sha256:1c9335803c35cfbf19fbe804192c3e648a7ea5235858d4b7eb0b1c7538f138d9",
  "action": "tool_call",
  "target": "ads.investigate.diagnosis",
  "agent_id": "did:key:z6MkksYZxAX4EpiAetcDB3uN9w1FY7LjriS966ZPCTMtCzXt",
  "model_id": "qwen3.8-27b",
  "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": "sha256:11b8df71071726b51fc6f38fb2d96d13626760d59cf9a34fd3256da2da3d94c7"
}

Inclusion proof

{
  "index": 19578,
  "tree_size": 104846,
  "path": [
    "076984b2c25ddb7a8cc7eaa839259b4238591aacbf102326a0e709770290b991",
    "daba562d03400ef68ee609bd02f49eee2ef084d5a7c63ec31a200bdd5358981e",
    "8fcfacea12a19f03820a5448f3949d4f9e045f900fa47fba97eb7d00930cd4ca",
    "7b9cf0b5962e20bd4eeeb1e702b72a602b03b590091730b1b8b90d6c3704364c",
    "4233d927f835c8f20c772dc4ba4592ed700054d03e3946dc127519fe730cbab5",
    "e62ec9396b5ead7ab451c3456c6151935cfffaf5d3531d9229b48525f125d0b7",
    "79486eefb1b23e6f342823908c7fcb165446ef7674e0e61bb2f274310e1abd19",
    "88888da773d603e05672b7347d92ce66fe1ee3577a4c5904328d3b803304367b",
    "e8071a4b5f14eef01230e506a3495ed81493464b608139460e941b67c73826cb",
    "ad211fde76ed8fff8103851e9f9d2aae7ad80c69a9952e1db2c69608562cfe3c",
    "a1ced7e33c005777728ecb9e3fc868bca64ca2cf5a9b417e41f6a7a99aa2544d",
    "c7b8ce854537c004d06353241029e2d288a3a8ee95fb05089c5a4f3aca1dcd53",
    "f20eb714c84daf4466cbc0ca224d8eb3dfa27f35bf9ee4f4394fcf32edaca171",
    "ef696e1150e8ccfa38bfb885032500f8ef2b780c99f0d9c84ee431d7bdcd42b5",
    "387fe46d3a9c7e345626d5961018c5dbe97f19c7ea00d9e2e0faa6ca09697fed",
    "5a4632f32becd822f53f3cc14a9488aa3faaed59d147c16b975350731a61aab6",
    "4d8e084f3042037b24924c619fae9f3035564d6c1d36620f7703a0a39f86b1fb"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104846,
  "root": "sha256:4a014ad5c84edf51957081a51f4212730e25e71056a0cf5d536dd0ab69cabf7e",
  "ts": "2026-10-21T08:08:12.375Z",
  "sig": "ed25519:e74f4a042aa7cfea640949721bfb8bcac7272abb40d4e9a124aa6fea3a141981f7b7a76d98e41e9754e56d58a759963f86f47043f717ce7d4626bf938cee9802"
}

Verify independently

curl {this host}/v1/proof/sha256:e928da3349b6d54bce68857b7afa307a7b90e8f93ab117f9885e69a487c22f65

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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