Evidence row 1820672

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/UC1UtY"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/a5565cf8-1277-429c-a6b5-6708e9b183c0/.well-known/agent-card.json"
    ]
  ],
  "name": "Grumon",
  "owner_address": "0xc98d7e8969ec893a65ec5a1b1a5e57f41be174b3",
  "raw": {
    "agent_id": "23052",
    "agent_uri": "https://centralcity.ai/a/UC1UtY",
    "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/UC1UtY",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Grumon",
      "registrations": [
        {
          "agentId": 23052,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/a5565cf8-1277-429c-a6b5-6708e9b183c0/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/UC1UtY",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793563816,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:12:35Z",
      "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/UC1UtY"
}

What the leaf hashes

{"body":"d0ccea75d7ba1690ffc6cf8ddf7099dde11bd80bda8996b27c4b1f24de127d2b","id":1820672,"kind":"listing","method":"sync.erc8004/1","observed_us":1793563955222127,"prev":null,"subject":"erc8004:5042:23052","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x6b308353c5b3a14a654c1425c84107286f0597b86d368a62cdc2efff422e1e5f
2. 0xf3887af7d9f9b50dc047bea7c6c4553a8031241fb6c8f5ed5364a87530b6c692
3. 0xe66062cb35a4e6e913f5d20dbb1789c144a0124c6b0d48c590ad9591edd15542
4. 0xed1683733cf45638df1c3ca2471a6442e604aa94892b57963f7e99aca2a40941
5. 0x7bd88171221063f75876e55e3e5cfd28180162c6764a00f302d81e4bfac64260
6. 0x0853127cb5bfa3c840e73bd2df745b4ff5a64c466f25f209b3cb99982a69ebba
7. 0x07c233027bdfd0a30159194d640b272d12c6b5ae0e63df4145b200c3d6755d11
8. 0xad1c576474b17f73107e34976eaa9e30d9620e93e7b2a4dd7cc9fd9af5d98011
9. 0x3e40d2bd2ec36abef06ff536770632c37f86c9348bb74977fab3dfc5f2dfe509
10. 0xe27e0fec10050c62a61920c49b03ad794c686b16ffe9b4b5ef2803c575cc3dd2
11. 0x9d35765183ff57d05ce9a61a73406911a2152746bd6f2b2efb3f7dd09c9fcb4b
12. 0x43057d795266252e61ade4f56b796d022d09002c9399f2392cbf30e568985e6d
13. 0xa13438f39c1dfc140d96305eabe916e6460ab6d540c44fdae98e5b23acc906db
14. 0x6e52ec74954b02fa6342c949413ce6ced87071b172b1bcf0f6191252f67257fa
15. 0x7c66173839ef153f08dfd346f7ea956e9226e1b7ff05bf4c6cf27436953f336b
16. 0xc1f6e8dd182b37cbb6e04d0e69486bd40d440934f8e373b9bae8cb78de508bba
17. 0x97f6f39e601b6ef0e47b730aa0488b718c0d7882ad840342bbd7d3a705a1b3a2
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90