Zanii proof

Receipt sha256:210aa38baa9da99a171997f605a949deca6dcfc5927e664a30601f7e037e2fd3: leaf #23249

Verification PROVEN

✔Receipt signature, delegation chain, and scope - signed by did:key:z6MkpZ6xNQ9eiJT4…

✔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 104845 - evm:2a56087966bbac104eaa97a0a04defaa17023cc680422830fcaa3a0e6cae07e0 (block 52889821)

Receipt

{
  "v": 1,
  "ts": "2026-09-28T03:06:25.543Z",
  "sig": "ed25519:108e9f813b607a4b21f00320aec9af62a992804bca5f041b673f828ae114b21467daec98cd870db27a20642611463e84142bf32dcdae448c596fee856f433503",
  "prev": "sha256:592cb35ea8e82c96dfd9fed27d89c3998f3e8dbca02df991071f2bbd07acd037",
  "action": "tool_call",
  "target": "ads.analyze.weekly",
  "agent_id": "did:key:z6MkpZ6xNQ9eiJT4nfyJLJR7nqfY27iu2krZScLq97ToeNPJ",
  "model_id": "qwen3.8-27b",
  "delegation": [
    {
      "v": 1,
      "exp": "2027-07-06T22:09:58Z",
      "sig": "ed25519:1bb79edc5d42e9f08ad1d97369ae2fe97b4916b46b4431ebbdd67011e54e9e4fda08815932a8594e7f0d19a7ee14d46815531030e531d6c7ac52f19025216401",
      "issuer": "did:key:z6MksQZm73wT4p97GUjdKC4SJxgsm8dzizoLCBE8U2QRRZBb",
      "scopes": [
        "ads.analyze.*"
      ],
      "subject": "did:key:z6MkpZ6xNQ9eiJT4nfyJLJR7nqfY27iu2krZScLq97ToeNPJ"
    }
  ],
  "subject_tag": "sha256:51e5d015a51da3d46d7f5f5ea126970d229e7297aef867b87096085ffc33e42d",
  "payload_hash": "sha256:13a000ae919e477c9dbae051f3e5fd8e17527677d7a8eebf261d77ed25fa861d"
}

Inclusion proof

{
  "index": 23249,
  "tree_size": 104845,
  "path": [
    "9642868a7fa37daa7824ee38d049a63b4541934cf5adc20927f6e14268828cac",
    "192f144fde5fef02fe2f33fdbb1149871050f8ac5fe0280d5e0c9550f22f6d60",
    "416d7d66c519fb35905cbc1b46ffc5f512c886d75edaf506be8054f5967b35fb",
    "efafdec102438ec58bc6944b7c54933374c37222082945cc804a8986002c8336",
    "0de5a9ce11d2b7574018a7c2620d1ecea6d5cf5fece162f5f0ae742f39450186",
    "b43aea56b40b2b1ced2d103c459f2ae73f72716e3affe4f6c8e9eef05f1fde6f",
    "569deef2bb2214e0010886fec65208f983a02ec25691c7e62445b53ffefe6952",
    "fbbd43e2c317c173b66a4c2eaabdace5d15863754d4135881678153f8e9144ce",
    "08cd57490f2c496ebbae92e74f0a86d74cf16feb845dd13183c42230d7d657f6",
    "46c24ac4efd77c8112efac1447affd90f0f96a4cf3f9b21b31171b1bca98eb99",
    "cc100a9a8cfd2c54d2f846becdb73b77218dc4b4aa2cd87da8841601b2b2eac4",
    "a5d98a18789a2e5c9bd86ba0f96dbc443fbb22b3725871376bdd38f43af4919a",
    "c4027fc6102993553d6ac5041a9d4c0b20ba786bb24150b3f406f499a8070bc3",
    "ef696e1150e8ccfa38bfb885032500f8ef2b780c99f0d9c84ee431d7bdcd42b5",
    "387fe46d3a9c7e345626d5961018c5dbe97f19c7ea00d9e2e0faa6ca09697fed",
    "5a4632f32becd822f53f3cc14a9488aa3faaed59d147c16b975350731a61aab6",
    "b37bb3dc292552df8eb37d966c8c1164e0d17412282c05694eb6cc4c3dbffcb4"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104845,
  "root": "sha256:e25416d870684c26bfdf8f51a38a1657ac6b5e7548fb3e6e97867e167027b6d6",
  "ts": "2026-10-21T07:50:19.686Z",
  "sig": "ed25519:62c95bf7be5447fdfe8a084dc335bb032b8af41b24eaaad85869ddad405288f30c624a5bc337dc82a03e3139fe5606376411ffc65825eee289383700f7f2e106"
}

Verify independently

curl {this host}/v1/proof/sha256:210aa38baa9da99a171997f605a949deca6dcfc5927e664a30601f7e037e2fd3

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.

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