Evidence row 3037731

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/cofD7z"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/ed75b058-1fd9-48b0-bec8-c5911a5565bc/.well-known/agent-card.json"
    ]
  ],
  "name": "Niaston",
  "owner_address": "0x0735e92345f18e22abd0899cfcb1dff71a3e86f0",
  "raw": {
    "agent_id": "267557",
    "agent_uri": "https://centralcity.ai/a/cofD7z",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niaston 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/cofD7z",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niaston",
      "registrations": [
        {
          "agentId": 267557,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/ed75b058-1fd9-48b0-bec8-c5911a5565bc/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/cofD7z",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793812188,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-04T17:15:14Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niaston 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/cofD7z"
}

What the leaf hashes

{"body":"79414ac13e24e8abb6add07b4193dc439ecd72db28c6f517ddab25c7f4d11786","id":3037731,"kind":"listing","method":"sync.erc8004/1","observed_us":1793812514622285,"prev":3037503,"subject":"erc8004:5042:267557","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-04 (424109 rows).

1. 0x585420d10c48e13fa9721351f727feaa6427fcad175fc1d83c695c0bdfa95764
2. 0xeafa66453f9b501a32fe8e28a423adc00977596033590995381f531398133503
3. 0xd8cb92f6876bac4271d7899197228076e4b2b13046909c2c70e8ef36fedcb402
4. 0x484b71c7785fc36dfc0651e44a665a8e81d0aab60e3888bf6969f185f34d39c1
5. 0x9fd43f1633fcfa566d803e1ebdb2e11629c7fe969651ad43789366d0b5f9cfca
6. 0xc75fa28140244db9a613d4a9c6c27c23a6af26b5037b44439159bd90fde39fc8
7. 0x619bdb79c516d64d3e67c27af394d3e8facab749ec83c3ca10d655258d053c4b
8. 0xa9f0d6e3ea7ff0a49ef88f64b08f082985935aa87a0ec628f10bf507ad1f9639
9. 0xe44897b6030241776919be65c2690b8a0f0e2f659584f5a6076ee1bf05e9580c
10. 0xf28bb29f33488ccc51d4f1b85855c5c859ec1ee945855580aa3b5951b0a7f31d
11. 0x5e05f7c02eb47fdda60e8a992c847ae6f631fda3c8a271fa9550dc8f1735027c
12. 0x55aa4ed15a7103bee2aa84d11a3bad9a189e2b97e173f45f8e4be78d469cde0d
13. 0xa2e5674fcc10c964861fbb98d1f682c2e24346c9f9f7f8e545244f42f75207a7
14. 0xfcbe70e6806bc5e74c59372e42042f8b6a3a2290fd0287c7191d5427d1ed1efc
15. 0x5d251e883c0069357a22831cebb319c52fe5f04a17c550ecf0dee07b97adf218
16. 0x5c295f44fee7844fe001921189101c73d5ab26f05805bf5587a5f0e5ee351912
17. 0xd8e00ce5342a08a947d0a4806e7254d076614766392d88153d93cf58ae69cf8b
18. 0xc3c363818e1d5142c4629be55f1c9e168a7466e628cfd2a858fe171aff1e91ca
19. 0x10067354f57fa0cd86b7423e67cc1c7d107d7c9c6823df5246c4fb63b60575e5

Day root

0xd4eed8c0ea3c90ec6f262b19fcc3b849f30cb82a0f84b8b89569e48af7d0c1ee

Chained

0x59305749c32724a02a23c368834d8a36ae9908da93a915e2962fffe01b4e591b

Published

On Arc Testnet, block 70772483: 0x813d56041c1efd407e56047129b597b154a1cb26458bb2768fd0a4630ac97345