Zanii proof

Receipt sha256:4171cd01041c279a9876c79bb4ab541f08fc3c218926fd5fcb446b0791d03ad7: leaf #2300

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": "2026-07-13T03:00:37.311Z",
  "sig": "ed25519:63ebeb35cc53e8a36bea0eb3895c6d4bd125628d491755ae910b5751853304b0e856b9b9aa7370b3d83db6addf0720686fb34a86fda246f6af8c6e75ae4deb02",
  "prev": "sha256:9401767fba3b2d8e62e4ebeabd507c61696bc9e5c4c1f472d24e84e95ebf5f89",
  "action": "tool_call",
  "target": "ads.analyze.weekly",
  "agent_id": "did:key:z6MkpZ6xNQ9eiJT4nfyJLJR7nqfY27iu2krZScLq97ToeNPJ",
  "delegation": [
    {
      "v": 1,
      "exp": "2027-07-06T22:09:58Z",
      "sig": "ed25519:1bb79edc5d42e9f08ad1d97369ae2fe97b4916b46b4431ebbdd67011e54e9e4fda08815932a8594e7f0d19a7ee14d46815531030e531d6c7ac52f19025216401",
      "issuer": "did:key:z6MksQZm73wT4p97GUjdKC4SJxgsm8dzizoLCBE8U2QRRZBb",
      "scopes": [
        "ads.analyze.*"
      ],
      "subject": "did:key:z6MkpZ6xNQ9eiJT4nfyJLJR7nqfY27iu2krZScLq97ToeNPJ"
    }
  ],
  "payload_hash": "sha256:36fcf88aeb8d6869160f0c5a8cc07f73c31e012a9576439897ff06083032b811"
}

Inclusion proof

{
  "index": 2300,
  "tree_size": 104845,
  "path": [
    "14f1f215514ce4b0cb5e9c1e1845f3f63e4fe1aa5fb775ee1e0f16aa9ae93958",
    "47125165a66471231fa1864e2c97de4803decd5127c0b1812139033a4bbfea4d",
    "b8f50c372318983493e2bd975a9d6067bfd2c38251aa3b57ff17f9bbf98df091",
    "8409e6d6dec73643800d5ca57cae6fdbf277fc38df2744b52f55fc9616572e6e",
    "b2f2cbfdd6b188c8c2a2826abc9dcaa32316eb197c41fef062a5eb5bcc09df94",
    "ceebe6a89525073a2cb829592b6246c05a116c2e200be2ab11e5b08f9298fad4",
    "d0fe35bc025caf00161d2823438d951e04029ec67b411700c44742717058fe7d",
    "99e5581de276a074aa9da98786fd70454fbcb8c62b2d7998a92d6b4157a5f983",
    "43162f74c3a1554674257a0dddd40ff461810d73dd5bf9e006c37b72dd0c2624",
    "6c22c430ea28f092487455b56e83fd264df15d609d38edd2cb482f0604e06fdf",
    "bf23fa82247485b4d2cc4cf7d0535ee3eb95dfd06018ba6414cb1e65338f0cb5",
    "295a341750636d326ec9d7f64ee379e3f6404d31975ce03b50a54dfda5554124",
    "dcb14f596eadb5306ad13f66f720dac1818408d6bb0b19e6b30773182014ce14",
    "33f5928014925af62fa247961fc28fedf00af377ad0250faf0c500a3d364cc22",
    "062f765c179a41919cf8d2dc107aed606ad32baa4f63a8e03d537e70fc75cc4f",
    "5a4632f32becd822f53f3cc14a9488aa3faaed59d147c16b975350731a61aab6",
    "b37bb3dc292552df8eb37d966c8c1164e0d17412282c05694eb6cc4c3dbffcb4"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104845,
  "root": "sha256:e25416d870684c26bfdf8f51a38a1657ac6b5e7548fb3e6e97867e167027b6d6",
  "ts": "2026-10-21T07:50:20.018Z",
  "sig": "ed25519:5f60a3676d05c4298ce6d44be6fd0314a1ec26f8487777ec4cf39abf849dfcbb8110829f1d80f9485f1cb936e022dbc52b3aafa8da8a5be45b1002f8e1d5910d"
}

Verify independently

curl {this host}/v1/proof/sha256:4171cd01041c279a9876c79bb4ab541f08fc3c218926fd5fcb446b0791d03ad7

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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