addrbookFor publishers
← The evidence ledger

Evidence row 1770726

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:6859
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
2bcb9c0835f6c1b9fc46173b7adea19defeabd0522126a6bcc307b06363afe10
Leaf
0xe86b4407466fcf4dd0c67528c6593d16dbf6be83196e956e017a1c681af63334

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/s8J40b"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/04b971fa-3e61-4ac6-b8b8-ab0097f4fd93/.well-known/agent-card.json"
    ]
  ],
  "name": "Nansa",
  "owner_address": "0x4f4f3a6e2bbbf85cdb9ec901016f1c6876546ea0",
  "raw": {
    "agent_id": "6859",
    "agent_uri": "https://centralcity.ai/a/s8J40b",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nansa is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/s8J40b",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nansa",
      "registrations": [
        {
          "agentId": 6859,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/04b971fa-3e61-4ac6-b8b8-ab0097f4fd93/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/s8J40b",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793546272,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T15:20:57Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nansa is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/s8J40b"
}

What the leaf hashes

{"body":"2bcb9c0835f6c1b9fc46173b7adea19defeabd0522126a6bcc307b06363afe10","id":1770726,"kind":"listing","method":"sync.erc8004/1","observed_us":1793546457146913,"prev":null,"subject":"erc8004:5042:6859","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).

  1. 0xe86b53249b94777803978b09989a7dbd5cafa8ea59ca2cb3e468e9ed671fbf82
  2. 0x94da36a6cd0474f29b6bbece742fd177fc51b57f017f2046ebdc901221e0df98
  3. 0xcd23880081efe8a1c652e581c949ee0a7762aeeec41956205b6622c2d8dffefd
  4. 0xe9ed0e4f34bf9afabe1313c418e05353dc6d0754e85e7b045db47e068ce93cd7
  5. 0x1e30e08d6b1e0d4220e4182686fe7c9ee23eed781977fb87210c9f6bc5eb86d1
  6. 0x79d745898d7d1bd5117ccc342addb4b18f506db9c1b1378bc0a97328aefc1f90
  7. 0x7700c7f257e4de1169a5c5bc7db6a87b162714451dfcfb46ef0424b383c0ebb7
  8. 0x7a604cb15b49851d955ed599294b4f16e856fd812ee7ce067f73a1fd6b16c765
  9. 0xe1883a4826cd82fc32776a0733971a88161de769757bceee09c236e4da4bb524
  10. 0x07aa3fa28fda98672cccd5f3d3fdbe7cee38f112d8692f7dda582df87f3bd0af
  11. 0xe9c0fc3b1e69b315645a6a7fbc869d897ccb29b49ef9a95b1eef8fc24c17a450
  12. 0xa1b3635993cbefb58f74c74567d4bf8407e2138aa7bd738bcbfea2169ff3e13b
  13. 0x0634a45000fa6f73103fbba8bbeae4bebdb256b75effa591aeb1cdeebe8a0e87
  14. 0x08ed21745c44c46e78fecd46aa9c74f653629b2db356d3eb07ea5f89f52ed2ee
  15. 0xab7a3fc66c9797d0e63453ae08b7e56806e93e038fb5c65065ad1ba1e1d9114c
  16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
  17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON