Evidence row 3127381

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/k2l76C"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/93a9eb58-fdd2-4525-a053-bce965beebc9/.well-known/agent-card.json"
    ]
  ],
  "name": "Biarker",
  "owner_address": "0x74fa473d67d42ad6d25480f68fa4ed5877053f50",
  "raw": {
    "agent_id": "291788",
    "agent_uri": "https://centralcity.ai/a/k2l76C",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biarker 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/k2l76C",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biarker",
      "registrations": [
        {
          "agentId": 291788,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/93a9eb58-fdd2-4525-a053-bce965beebc9/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/k2l76C",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793825493,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T20:58:33Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biarker 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/k2l76C"
}

What the leaf hashes

{"body":"fff5dc44555264ca1b05eda7531615c46f642286769fe587463008f66c3150a5","id":3127381,"kind":"listing","method":"sync.erc8004/1","observed_us":1793825913602245,"prev":3127126,"subject":"erc8004:5042:291788","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0x625093190600459b3e7ae2c58f3d9c58f1e2a42dd6e49d64040779706e281a04
2. 0x3c6f7b6dfaae72223551d78fd6bee519fb47586df97bf9bbbf27c12a7a1e2975
3. 0x6cd586ef589b80c5e404bd9da41641fb26a98eab7a32d0ddb5bacebef8a81144
4. 0xa9c1e402c6d3251e0546a0a66868d147ca3461a1d2bd4dd6d0cf7a0db8c0bdbe
5. 0x4e0fc07d71214cfb3684762c12f8692e86b8dc7fb709efc8ccbe699a50ef2fb3
6. 0x90908b16baaccd57769f2ce29723c4ea3f9239b55fee0e2703b75cc362b12069
7. 0xc430dcd60d902b8fb9ad6818662da69f1953af1558e3ee347ed2838c8e7b8821
8. 0x8f4bdb5878245c970792e10d9c4215da256ff4ed2379a6dba6dd64cd001a0980
9. 0xbd1701a6174ce5efcff4d69dae48cf27c2867fcd36f4fb3f5335478257ac92ae
10. 0x11f1c9f26ef84f9fe9b784f16a3bbbbcf3bf23a985078c5023e4a1b8c816d03e
11. 0x59b216637003c467c4114edc358cd3d33054e7814be95604bb6435c5cc894860
12. 0x99c1feeb7b0b0035c53ff893a10228b760708f176b1ce42f5e7dd0a604a00442
13. 0xbb5dca07106fdb0c308e2d8004cd4d6c885cc3e15a96807f75bd29d6d805aa23
14. 0x4c6a239112152a196e534957ed4fc38d90b1a49e17c6ec6aeb24e15cf6f3a341
15. 0xef57a5030e9f74924772ed82f2ec9d81269d0f11488e66c967d5fe90d002634f
16. 0x5c295f44fee7844fe001921189101c73d5ab26f05805bf5587a5f0e5ee351912
17. 0xd8e00ce5342a08a947d0a4806e7254d076614766392d88153d93cf58ae69cf8b
18. 0xc3c363818e1d5142c4629be55f1c9e168a7466e628cfd2a858fe171aff1e91ca
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345