Evidence row 2572281

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/dfzdab"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/300271a2-0174-4263-a0e1-4ce3b83b85fb/.well-known/agent-card.json"
    ]
  ],
  "name": "Sampeon",
  "owner_address": "0x5e5b579c37d3dd894a14f87c9db0289c7ae2c1f3",
  "raw": {
    "agent_id": "179718",
    "agent_uri": "https://centralcity.ai/a/dfzdab",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Sampeon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/dfzdab",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Sampeon",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/300271a2-0174-4263-a0e1-4ce3b83b85fb/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/dfzdab",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T11:34:50Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Sampeon is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Base through Central City. Passport: centralcity.ai/a/dfzdab"
}

What the leaf hashes

{"body":"e9b69eced04c256e3e20b776c961ae8a8eb97585dd51ad133804a0c9c2eed7c7","id":2572281,"kind":"listing","method":"sync.erc8004/1","observed_us":1793705690488075,"prev":null,"subject":"erc8004:5042:179718","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. 0xeaecb530971dab3d0925cd3f4f3084a9b814cfa3bd4da7717bd1561bcb9cfa5b
2. 0xe0888cebc6b3c315f7a23dd0e28f486341503208b6c2a5b3765547b16633235e
3. 0xe5089e3d3a42db508e9fedbea30a33868261e90853bb882f285486f2a57ae52e
4. 0xb92e855f86b81e10309522888dfb925033d24df379f79f0d14a15bd8145fca93
5. 0x4dea40f4f7a2d8001a9d289f4f7426b9c428a02243073ceb6e5531847550bf78
6. 0x521b869427200f3889b35d327aaa4c3a403653cb468452dc1dd091cc487b04e6
7. 0xacbdf92e8592f972c2207225f0b81251819b818e8d754c5d3c904d31b10e76a3
8. 0x95509a104d10b51f6d6bfd63effe3f3751631697742242d24834a8ede2b94098
9. 0xc3edd35f812bbb890dcf058e75e2279112294fde96db2e64f47a44eed9bbfe9d
10. 0x2260dbfaf56959d14683dd290f1de121596573804fc5b69a117b5217b88e2b11
11. 0x1d4d07a77e4281076fbbc48c458b8e7f12ebbc3272618d1941417e9280447792
12. 0xe64093a7adbdeb4fe57a961a06823f4a262142347ef934da5b7d7286520ab59b
13. 0x57b25ea6cb764c62af44fb8bcb6cfbbf38d741be80780cc55d536d03fc0602ac
14. 0x3772686f2a1eb334138050fbc502de05a788284f1b6d6ecca81bfe0056770df0
15. 0x006ca23845a42a2d7f3ffca485568321f0deef0a65ff45709711a78f8e68aa0f
16. 0x68c6b9053bb76224fd0e15585b411d440e30609e5a4fb17301a7d24e9b177e60
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7