Evidence row 2557868

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/g0xA94"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f133abf8-ce6f-4358-afd2-6aaf1b16f894/.well-known/agent-card.json"
    ]
  ],
  "name": "Brivabel",
  "owner_address": "0xd477e4c96d1168ebea260f2031d70ebd83027dad",
  "raw": {
    "agent_id": "172299",
    "agent_uri": "https://centralcity.ai/a/g0xA94",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Brivabel 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/g0xA94",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Brivabel",
      "registrations": [
        {
          "agentId": 172299,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f133abf8-ce6f-4358-afd2-6aaf1b16f894/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/g0xA94",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793696865,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T09:08:55Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Brivabel 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/g0xA94"
}

What the leaf hashes

{"body":"4033e40f337e5d00a3c0a47c44fef5ddc654c5b01e026408e765c9c40383d1a6","id":2557868,"kind":"listing","method":"sync.erc8004/1","observed_us":1793696935598247,"prev":null,"subject":"erc8004:5042:172299","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xcd6b8949c43bf0bd2eaed9795e443fb372d775a513331dedccb78a571de486a5
2. 0xb809628e8b82c8f1d48fe3f5c4d0244505e7eed49d7ab5bbc9e2d3cfda154e0f
3. 0x8ef8b13f50d9e6fb37e2a6d8ab3fffe521bd2fdf265a2273d1729ba45e2e2daa
4. 0xc4ab24286ed5f3fdd81310a87e1bdc8a1b509de35341d9f71109ffd4e9cface3
5. 0x388e159dd7e6af1ebdf56e2e853960b23a307c82b30d827ab0470eccf2a5069b
6. 0xe6a47b63ff6fec183c3ca393bd6b673bcb43efdad77831f1f3f7a849f915da12
7. 0x7113700a34fc8d4c41119034dac0c46db414f8a7cf58af694cc31af45178a3b5
8. 0x5475af0c2f269006359cb8e28fb6a14b9c5bc16354b4ea15ac51d4b0e0ee354e
9. 0xc55e025df42ee92591ff0d9bca044892adccb898340f3b88ea02ad22c99ef0be
10. 0x0feffdae145691bee23a190dcd295bde880a523d6c664ca0a0143c8dd5df89df
11. 0xbd6f46f900f59f73dd50befced9f530796b869d1d0a631b865c0ee260b6f8b01
12. 0x622a46193da28a1c9a8d8ef5e9cbdca4283fa554d97ec6b4613dfaf366dd8635
13. 0x3cc986cde06d5c6049d73d3e8c2f67d8c287673474d2ceaad7738ed7a5bb185f
14. 0x06f39b34e961f2ea2e8c7681b9a680b15d48774fc0534e19640f27b7f07640a9
15. 0x20b1beb78a0f066bfa1ffbab05695dfb2940fd2df005cdcab3ae2e82d26c01a9
16. 0x59b3a6fae1c920f45b1445649e93c8c7d68f3f69789b0df88522cdb15a28590b
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7