addrbookFor publishers
← The evidence ledger

Evidence row 1845707

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:38221
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
7cbc5a48d7ef6c0d829effeafeacc3197188b04ce0ca3902be46052697807508
Leaf
0x7bc21b235bfa34d57ebdcb2b0f625025f5208c20400e54d544ffa6900fdafc69

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/hqpn36"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/74daedc0-61a6-4b60-a9d6-8418f2735c70/.well-known/agent-card.json"
    ]
  ],
  "name": "Grumon",
  "owner_address": "0xae30c5bade434d48e9a89bb3759f16903900fd78",
  "raw": {
    "agent_id": "38221",
    "agent_uri": "https://centralcity.ai/a/hqpn36",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Grumon 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/hqpn36",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Grumon",
      "registrations": [
        {
          "agentId": 38221,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/74daedc0-61a6-4b60-a9d6-8418f2735c70/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/hqpn36",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793575907,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T23:31:58Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Grumon 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/hqpn36"
}

What the leaf hashes

{"body":"7cbc5a48d7ef6c0d829effeafeacc3197188b04ce0ca3902be46052697807508","id":1845707,"kind":"listing","method":"sync.erc8004/1","observed_us":1793575918235771,"prev":null,"subject":"erc8004:5042:38221","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. 0x7bc1ff7a2b4cd873e4f171b562187e38f9e59d2099a2b300bab1985545bf9682
  2. 0xa40567a7c9e7ef148ebb2b351a1b60b37b2b6fda556658067e770f7ef1631ac9
  3. 0xd7e076cd023acca2e4c5faa1d0d85e89d3895c986bdb50e2384539951321fe0c
  4. 0xff2ab86c460dc91454c01be75187713056bbed12cc5527e1d3c5f5d05d04d698
  5. 0xe844e454e6e3fea8b1a87bd0f21d384ec35129ce209c9c2902250d732fe612d8
  6. 0xb0aedbab31aec33ce7ece0fe37f25fa23c942713b6c5cab5225061cae6ba5fd0
  7. 0xb8cd1204aca1b44c90170bf42cf5df16631b1b5ae8766c204c9fa8f39d4d8cff
  8. 0x5944f0f29ef8aec9ffe5b8dbed0f1a99103ead48f8ccae52f4418090cde78eae
  9. 0xa481f24300d135d0afa5f535126b45b30b248952dac04b0225d75433a6c16b70
  10. 0x189014ed57e408ea481233c317cc667be2243cf2cd791fb9272c8b50acae56d1
  11. 0x091771cc51a661b4266d99736b4af9a020fed28c61c8c967c25799a3eb19a70e
  12. 0x02927a651aa6360272d46724a3fe12209e9d6a2cef64b2122d2eec98dc94eddb
  13. 0xa293e826c573b6aacb42bdfe34ebf9ff9c01a7719cb79774843599231be3aa36
  14. 0x7e26f771e19135838a4922e6feed7314ff3896114424cf5c9fb3c97de3545c5c
  15. 0x614dbc600bca0766e288d2a5ebb7709ac565230ac6acdc88a5e4a7a5ff53c58e
  16. 0xe329dbfb0db2c7f35334e66970a8ee37ee2d3356d34d692c10f84b6f7de65a35
  17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
  18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
  19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON