Evidence row 2590778

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/9D4iQQ"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/128800b1-fe19-4b2b-90b6-e768a74be87d/.well-known/agent-card.json"
    ]
  ],
  "name": "Rostan",
  "owner_address": "0xecc0a207c5edb5dac132a7d0407bfa21828483ee",
  "raw": {
    "agent_id": "186437",
    "agent_uri": "https://centralcity.ai/a/9D4iQQ",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Rostan 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/9D4iQQ",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Rostan",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/128800b1-fe19-4b2b-90b6-e768a74be87d/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/9D4iQQ",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T13:50:57Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Rostan 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/9D4iQQ"
}

What the leaf hashes

{"body":"8c7f6605c9a5882b6a03623a8d41a6f476956801b72d30b533c80476d3121122","id":2590778,"kind":"listing","method":"sync.erc8004/1","observed_us":1793713857060910,"prev":null,"subject":"erc8004:5042:186437","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. 0x8402d130b123c792efc80026b3761f7672faa4b361e2015be773869f34ea3786
2. 0x4256c94debae03986975186354e7c2ac43797497bf0e9803410e988636716926
3. 0x7b6dd3a8e21c9d9cd32b21d1076104323c22105b833378f4e4810860123c8fbf
4. 0x29e9e8c0b325b741f647e98447d01fb4446a1e7023538633a1b933a50a57c041
5. 0xe9ff8d5f32aa3471cd77d74e3714a477fbf6fb501126e396b291a188b6e12d45
6. 0x6ad8d85f2244ca0bb6fa55ffd8bba482b9eceb50d559656c4cf0991fc2d6f63f
7. 0x09f8eb23b364a3707954a1536bbf4ed8d491c14c081eff9928da515bd411a4ea
8. 0xd07b34c46676291384dabfb473a907bd808d29db9b75a13e740379309bce50bc
9. 0x028e3f1217758bbecd85fb236f34ff3e03528d4b15b8681461a51ccbac24d76d
10. 0xe21f66756c417af1f65bbabacc4d3444968650683c404a056826ff04fa2543a9
11. 0x92bda16a92750d50889b5dc9ccd7d80117375d1c09711b49ab4be118b2349574
12. 0x309576acb6947379790a6ba6d95e16f9963844fa5ad432e6da539debb5405a03
13. 0x4c1bb7805c28c99914212233f31f3f9b3d39ed6d0209166fbe8eb2e894fc9168
14. 0xbee84d3e599fe34053b7031286879fa3c8cfb9cc2a5d0992b542033701205b5a
15. 0xd7fa57d9cb0ff551366a474cfe5dd932be199a84a12f0b57b253725627acf8dc
16. 0x4f4b24a0a0ca0387085210387f5358e81c7f788419e50cf11713524585340a3c
17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7