Zanii proof

Receipt sha256:1432cbe320d82132810b7e06a1bfbbb85f0b69ee82295b46784db6e3b830cf2c: leaf #19389

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": "2026-09-24T03:43:40.561Z",
  "sig": "ed25519:29f65e201d772955469b66465067911ff65eb9abc02a286ad679d994404f1696e52336eb2283c2a3d7d63754e3963e135a742beb844e2534fdfc49474ee5350c",
  "prev": "sha256:ab79a922602a6f6e46010264bcef4d20c2e6be3071864d381e0a0ab2176d5405",
  "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:d0964d43a44ad1949f69e1d6f561d8628d69f5e15fce26c2f3389c84d89a233c"
}

Inclusion proof

{
  "index": 19389,
  "tree_size": 104846,
  "path": [
    "e1130a383f99e1705b15a8e68fe0d2b0f1a46deb9807f809becc36e510f6ea8c",
    "f8995ca9195b0280c14128aa00ed17bb3aca10ae4f8155b12f060051a85a7f66",
    "287a3ee766cc76ac9327f0e7394141c8e2e726d7012a0f6a4407d77ce2bbc0e7",
    "ce521df4ae31954d62d3678965ff079d3b063924bbd8d636294e4a92bdbd4053",
    "b406363ff97e775d4d9fed59809c9e3c00d7b320b43c6b35dc797e935a433abb",
    "910a532668ca7f7fed632004a7b1aa4d15ad93a44477a4b44c06f6a78462ca7d",
    "263630e18cdd9e57e2189fbc36bd98ffab387bcd8b947d62db03e596a2eb6499",
    "089bdcf94f308a77ea371d425e734bf00b236e736ad17e31d2fab0533607e911",
    "c06696e32b8f5f940d10d4df352a6c1851b04be2ad9a72448b97df2fe83c6b0c",
    "4f7b7d47aca2ee5e80345f9c791445b626039946d929eb140bca29f1db23d74f",
    "a166cbc9d51774f358638d1e3d9bbcc234fcef88f54a455854b677d6e5ed4502",
    "c7b8ce854537c004d06353241029e2d288a3a8ee95fb05089c5a4f3aca1dcd53",
    "f20eb714c84daf4466cbc0ca224d8eb3dfa27f35bf9ee4f4394fcf32edaca171",
    "ef696e1150e8ccfa38bfb885032500f8ef2b780c99f0d9c84ee431d7bdcd42b5",
    "387fe46d3a9c7e345626d5961018c5dbe97f19c7ea00d9e2e0faa6ca09697fed",
    "5a4632f32becd822f53f3cc14a9488aa3faaed59d147c16b975350731a61aab6",
    "4d8e084f3042037b24924c619fae9f3035564d6c1d36620f7703a0a39f86b1fb"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104846,
  "root": "sha256:4a014ad5c84edf51957081a51f4212730e25e71056a0cf5d536dd0ab69cabf7e",
  "ts": "2026-10-21T08:09:24.213Z",
  "sig": "ed25519:332f6b28568367b619f229252906000fca6f1d85720af1817d3e761f0bc3be135aa580bd81303a39182ea1a352221e2f61aaa017eeb5249b861762d81aebb50b"
}

Verify independently

curl {this host}/v1/proof/sha256:1432cbe320d82132810b7e06a1bfbbb85f0b69ee82295b46784db6e3b830cf2c

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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