Evidence row 1815220

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/ypOrV1"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/b62d6fcb-9312-42b1-a273-af64240f38e3/.well-known/agent-card.json"
    ]
  ],
  "name": "Brubert",
  "owner_address": "0x40c4809c8b3aa6e68d9ee08b74d82a1e99e85ea5",
  "raw": {
    "agent_id": "19607",
    "agent_uri": "https://centralcity.ai/a/ypOrV1",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Brubert 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/ypOrV1",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Brubert",
      "registrations": [
        {
          "agentId": 19607,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/b62d6fcb-9312-42b1-a273-af64240f38e3/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/ypOrV1",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793560633,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T19:21:56Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Brubert 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/ypOrV1"
}

What the leaf hashes

{"body":"e11c11f51000e6938721921850f4589f3bdfef4e1ee252265f972d8b4b31fb1b","id":1815220,"kind":"listing","method":"sync.erc8004/1","observed_us":1793560916531667,"prev":null,"subject":"erc8004:5042:19607","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. 0x06e510f4712dda788b7bfe63e0924c0469f5b54b4b0d1e880b1931a46a6c921d
2. 0x371dfbbb726059b73da62bbaf7869cf2139a6e282adb09acf1683b2980590c91
3. 0x276066128ca4226c6eb0f4d8b2fa9a88ab674323a781463e78d4696a1c03126f
4. 0x2324b5f39b443b52247b70a924eb8864240d239ee957a995ae902e823db3164d
5. 0xecd398a48787834b31c8d6057959b6086878bd2d9fba418d7e16ae8e59463aec
6. 0x75194e3a102fbe19ae534e096547bc93ddc7ee7e423c5ece6635b2a8a53f47db
7. 0xe454dd518ef9cfce278b331c74a0287192926b919c93e29b0fbed6830491d70c
8. 0x8af55e6eaaab2dc65bc43454722acd0e807b55c48ef6c8c645c5c744d2f8107c
9. 0xd26725cf0199476cdfffdbb9a08b0f80edd1444f051533d8fa35d0f68fee677c
10. 0x80f30bff379b0bdadc043c440bb6db2fd949e3fbaa67833716cece50c203f4e9
11. 0x1933507d6f34c466ec8db31b4a5d85e8d5128afe3d758d526a14d23e914b5f3d
12. 0x0e504833698abc04312a4beba98e6602297f4ebcc6ef94d56c7c823f8f4d1120
13. 0xc5ca32546ce0064b3138a27ee36e8efc96a7bb8d2662039a9f7264614b609213
14. 0xd6df189d40f713323baeb698612a9e7d2afd763112be148a165d7fe65a5c64f7
15. 0xb611d3d400373ab2497019fc1d3d5040f4f6589f8d98d8e25ccf29dd2b68ad92
16. 0x5cf5a0a57795246f996e480f05ed085c19d02f7d6e8fc3ddc392412466554f0f
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90