addrbookFor publishers
← The evidence ledger

Evidence row 2101826

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:81848
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
3bbed0b3e84962c3f0371412e7057450ac476d74dd8466296d4ae3db0a956a97
Leaf
0xe224edfbed42472a1f86d36f08ff82dddbcedfdf054d0e467ad0e3a38bfc5597

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/VQ6Jxa"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/3f6a2f8a-719a-4ddd-91c7-02f574c1d487/.well-known/agent-card.json"
    ]
  ],
  "name": "Trampeon",
  "owner_address": "0x5b1a2a12983c5cf3c47875d4817eef4eff3e025b",
  "raw": {
    "agent_id": "81848",
    "agent_uri": "https://centralcity.ai/a/VQ6Jxa",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Trampeon 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/VQ6Jxa",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Trampeon",
      "registrations": [
        {
          "agentId": 81848,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/3f6a2f8a-719a-4ddd-91c7-02f574c1d487/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/VQ6Jxa",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793611456,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T09:26:14Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Trampeon 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/VQ6Jxa"
}

What the leaf hashes

{"body":"3bbed0b3e84962c3f0371412e7057450ac476d74dd8466296d4ae3db0a956a97","id":2101826,"kind":"listing","method":"sync.erc8004/1","observed_us":1793611574630988,"prev":null,"subject":"erc8004:5042:81848","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).

  1. 0xe2253c9216196d6e215af45bfcf7766f049887ae3878f6086433529f914deba7
  2. 0xc18ae7d53030e7078f73882d8dec614a4196a01c11b98e9a8566f2b30516ce1f
  3. 0x43ea9269962d43b5533b4c2202019bc6867364657d6356c77cda7b614c031551
  4. 0xae90d0034e85eb1eb5e1d78fd47221cc5b0a06baedd0aa769e035ef4302da2be
  5. 0xe11aec99b3ccf06fc2f9450179bff4bca401a77ba350e007ea19cb1dda264aa5
  6. 0xe44e58b9dd5611d304bdd8cb49462ca2ee11210344d7b9c2806e59bf2ea9e35e
  7. 0x8dfb9ba59ded71d61f2d77693076136899fc87a84fb889d9340323e17e2b76ba
  8. 0x6d1ac272fb27f01e040e6e1942786e5dbdb2f526365df2c30c3decc3e3353b32
  9. 0x78a1157b3b7bf182e03ba3d0f4f1f49f16046ee30fc9905152fde4bb1f21e437
  10. 0xa64f7c32457a5a86c35da9b5f1a8294e2400c1bb7fe85b79b9e86e00db8d5f27
  11. 0xe5985bff1a056f91914dd66e0753170d232359f6f964915a46d74ee39e2c4fcd
  12. 0x37814ff7d770a63821d15b27a2e5fdbaf9a62bb6f9fbf75879c68f737912a066
  13. 0x1a1962c4212994dc624f2a06650960c085108399590bfb7472893d9b1c149e31
  14. 0x5dd75981e1af83dc5ec1e2b8a2959012484cc3ea2e0defded2187a5a93ba7236
  15. 0xa370e8e015a32408a8112e54e5f40a8a65e871bd52bbc6f25fbd1139f2ba5b11
  16. 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
  17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
  18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
  19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON