Zanii proof

Receipt sha256:e2b5b351f98cbb4300431addaa38a37808cc79b1eebd887a652fbf118cc89d07: leaf #36564

Verification PROVEN

✔Receipt signature, delegation chain, and scope - signed by did:key:z6MktzLoN32UBYuZ…

✔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": "2026-09-28T17:00:10.732Z",
  "sig": "ed25519:9e95674bec99330b32c9823097e535fc49714d799d9259f748bb6b1c7bdbbe6d8a2b5483425bcdaec1c03d693b2ff34ba33d8820d6d8dc3bc406bacf73edeb0a",
  "prev": "sha256:f9d61daea9839d92c4fe4ed4eb33d212c0b029a6b7d52f74aea43633be4631e3",
  "action": "tool_call",
  "target": "ads.mutate.campaigns",
  "agent_id": "did:key:z6MktzLoN32UBYuZmbAemiMUdpC3uB9JUPiRJ8NhCFKLrtR5",
  "delegation": [
    {
      "v": 1,
      "exp": "2027-07-06T16:53:31Z",
      "sig": "ed25519:d71bc29802a931ce6138dfc90f570a21dc941fd82d218d7fe72f04cbef3aba81ea7d9ee4bae38fad7ed7638e2f308e5f2db1983444af8e99849293f24fb6f70b",
      "issuer": "did:key:z6MksQZm73wT4p97GUjdKC4SJxgsm8dzizoLCBE8U2QRRZBb",
      "scopes": [
        "ads.*",
        "analytics.read"
      ],
      "subject": "did:key:z6MktzLoN32UBYuZmbAemiMUdpC3uB9JUPiRJ8NhCFKLrtR5"
    }
  ],
  "subject_tag": "sha256:51e5d015a51da3d46d7f5f5ea126970d229e7297aef867b87096085ffc33e42d",
  "payload_hash": "sha256:518438a65a7b8518c044c50311223911a97562aab8549847feaa7db313770815"
}

Inclusion proof

{
  "index": 36564,
  "tree_size": 104847,
  "path": [
    "cbf53bc14e1c432614cb7c582f9e184859787be6ad831c5cc0c20609983742b4",
    "25e1bc3fc378a60b4ce73ebd8eb238e59df6be7d6386f3e1c8c702fa54b50eb1",
    "90a5d51408b8a6449d6289a3f3b295dcf5baabd91edf25e3065793dc6492ce1a",
    "549a5e7754f82c508b6619e1c6e5a7d8936ad6f3e6428d9f9400ff1d635187bd",
    "7edcb3fe1bd3c81154802dc139990f6a77b4069e21acd810668cc8ff40d86471",
    "689a5b6d6ba154931a49c7ff99d00f090ef864b8b2bc5529a6dcc486a2cf81cb",
    "4221a14f8f2aa0c4b1f2baad28b59391991e62ded05ef38741eabbc35cead81d",
    "b7389df792fe96a7210909293556ad10b195a6e619fb258cd59d3427d6032d12",
    "777a73260b6fe54de519fe6a2bf8d179bdc5b46eac37537c89919559b4144049",
    "b7160f29e5ead9613aff7607a0af6032dc3bc90fac67c4f9d6a15be166bc7007",
    "f0ba9e0ef38919b0c641fda74b2060cad7ac0457f2d630f5dc90cc202ad0773e",
    "18830521d8e80e98b1f300c828cdf25ae90093b659fc9b7c698fc92131a27827",
    "c056b6d77de06de008a59f6b3e38846eb54a481ff70f4389d053de92ed4df284",
    "781508d71026e136c0999c14646d46e3ca0a9890ef1fe80bf3b601468d8b3d6a",
    "0eb709f6373739abd013d6cd4eb1b3377e3e482ff68ef5bf2c7e271065e5f936",
    "8036f346ad06338293a11ab2c88796a1f41f83043ae7996353f2a0b839ddaef0",
    "e371cf511f8b1a0af4d0515b039406c271530ce91530cc5c9a547382832ac12d"
  ]
}

Signed tree head

{
  "v": 1,
  "log_id": "did:key:z6Mkt3UL3dCEigChGEJKSdhSra7JRoG2z1GLtbrLCKnL5GX2",
  "size": 104847,
  "root": "sha256:223008d34d3d49eca802c76f947a0dac252e522cec3cea6029a1f22e031b8ab9",
  "ts": "2026-10-21T08:13:32.493Z",
  "sig": "ed25519:73447d97564473e53357d01314cbcefdca83024e421e490bbde69fb984828eb9ed7d97c774461b0cbe46a9ff23357594416ae6e268734487568b4e5a7f794307"
}

Verify independently

curl {this host}/v1/proof/sha256:e2b5b351f98cbb4300431addaa38a37808cc79b1eebd887a652fbf118cc89d07

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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