Evidence row 1828203

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/y1WltT"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/5af5f7df-8314-4166-a079-2bd897d8ac31/.well-known/agent-card.json"
    ]
  ],
  "name": "Bostan",
  "owner_address": "0x06cab9431fd24d01b5d52676fc76ee209cfe45f0",
  "raw": {
    "agent_id": "27683",
    "agent_uri": "https://centralcity.ai/a/y1WltT",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Bostan 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/y1WltT",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Bostan",
      "registrations": [
        {
          "agentId": 27683,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/5af5f7df-8314-4166-a079-2bd897d8ac31/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/y1WltT",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793567475,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T21:15:38Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Bostan 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/y1WltT"
}

What the leaf hashes

{"body":"fa7e9326c5f210708ec228c9a138b97c5301b189957c2d26b97456d111fa81ca","id":1828203,"kind":"listing","method":"sync.erc8004/1","observed_us":1793567738489118,"prev":null,"subject":"erc8004:5042:27683","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. 0x23bb56abfc6006dec3d46c4b8fb80508494ed7cba9fac8dced0258ceff8860f1
2. 0xeaf7f581dff0710758e3d0db9ff988924d87d4df82ef3ad2616f75bb73472f1e
3. 0xde4703f61a1e71e02cc48c4901c61c062234743a7f3592d7858e82c29d490b9c
4. 0xd5f508cde2a30f050e8dfe7880686deb38ce78be361ac7079cc482fb12deeaee
5. 0x494992c99f33fe8ad5ac3a5722bafe1d75c03f04699f3e535bec44534859a780
6. 0x5f789d478e837d110a65937beddeff6329d4a1bc35323b7c67c8d06981afdffa
7. 0xc452d1be9c1832c99dc5b4f0af8b736518f30f946226bb5d0c19d62db0b6e01d
8. 0xcbbaf649ec380d6d6e12894897e1274a59af46af2c1b277d7f3bc35e9038cd31
9. 0x0a66f333e4ed106d29ae0ab4ca31db645ebbdf3719588da898f13e796c5a8bbe
10. 0xbe730f7f1fccfabdc6d36e163ff26a4a12999bf80c78f31fb469d4f5005b470e
11. 0x6e585a4906b3fee21f4999c1cc22655c577795a89a8ca8be8143962ece1adfc2
12. 0xdfb60f69cac19b1ac7881e138fd331a8a5a530dc13ed1095b70c261d628f44d4
13. 0x9dd502d4ff98d6d9a3253ed5276781da0bbca65c29f44992970b6dcb262524b7
14. 0x3a1fd02b7b783283e5af93120711d3c5437e55d0f3e68e16f18cfe19e54cafd1
15. 0xb9d6fdc8e6fb3f4feffa2c18849d74fc34d8708b574a778ae149241a90aaf20b
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90