Evidence row 2191781

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/jAnAxk"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/931eaaa0-1979-44ac-8e59-de01e2f427ec/.well-known/agent-card.json"
    ]
  ],
  "name": "Nostan",
  "owner_address": "0xf05b0128baeaf808b2b3eca6d0c7f50910cf20c6",
  "raw": {
    "agent_id": "121572",
    "agent_uri": "https://centralcity.ai/a/jAnAxk",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nostan 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/jAnAxk",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nostan",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/931eaaa0-1979-44ac-8e59-de01e2f427ec/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/jAnAxk",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T18:30:54Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nostan 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/jAnAxk"
}

What the leaf hashes

{"body":"641bd5dbd7da3166dae56da7d9a7914d40ab5fa3eac69cf80fdf53164c55e4b6","id":2191781,"kind":"listing","method":"sync.erc8004/1","observed_us":1793644254587315,"prev":null,"subject":"erc8004:5042:121572","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xdd9e004b94b5f87d198344e76c5b48b118c0c6b1de14a5e809ae424260599375
2. 0xfd5ede24ca0a4e61d949e53b7f38106accb3db373354dcaa1f22c66f1986108e
3. 0x9d008530457c798168896fa123f252ac7ea384e2b5304d877230907c5ef51e40
4. 0xed133915d96a208aa645c7fc601ac72c9aa52c8ebd078a22da2c25d604c46359
5. 0xb1cab89630081c8125985e63200cab1329cbb6404519cecece71c58dd3980129
6. 0x5d75a402c7024ef34143761b1cc5432970fd7f916f989b9c5a7ea1b13440e54e
7. 0xb1b425a08dcf14158f55a1abbb20b11c98f129de0850fb7cd106b3d2756eb265
8. 0x6b477b116ede54350c413d1eb6f8c35d5c8e125f962cb3ef8a3e8fab2aca73b1
9. 0x6a91e061cb6cd3a908b8c42f89395d929935c6a9d9cc1783eb9e830d844feea1
10. 0x2fea7713da7795cda64033a9ae140b9fd4704d7ee7f97e7bc8b6712f9aa1f981
11. 0xd649d8636ffecb1c7d5bb50b2dc342616748de127f37838edc4922688eae76eb
12. 0x01a0fcfad157f65c9dfed12bdf21e0b3759daa967023093e05700338fea51d1c
13. 0x4d734793ac74750cbdf1c30c6305a901fe0ac2ddf5819c226b382460e68290cd
14. 0xaed7c1080b4ff0b1fc4f851df0f2b8b4ef86b106015aa3aaf8da39a641c41a3d
15. 0xa370e8e015a32408a8112e54e5f40a8a65e871bd52bbc6f25fbd1139f2ba5b11
16. 0x7ddefa7d79e7640c3fed21ee4472689415182c41a0258ab04a81d60495f4c40a
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af