Evidence row 3426109

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/2Hbm1z"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/7d517fda-73c6-48d6-ac33-24a8ce7892ac/.well-known/agent-card.json"
    ]
  ],
  "name": "Niada",
  "owner_address": "0x5b176374d1d2a6f887c5006686c0146aa1378f62",
  "raw": {
    "agent_id": "344012",
    "agent_uri": "https://centralcity.ai/a/2Hbm1z",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niada 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/2Hbm1z",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niada",
      "registrations": [
        {
          "agentId": 344012,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/7d517fda-73c6-48d6-ac33-24a8ce7892ac/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/2Hbm1z",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793895530,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-05T16:20:41Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niada 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/2Hbm1z"
}

What the leaf hashes

{"body":"7986f09ac19658fed0be3b090c7e387adf4bf3cb7c986c7eb9bbbd9684eb9756","id":3426109,"kind":"listing","method":"sync.erc8004/1","observed_us":1793895641213499,"prev":null,"subject":"erc8004:5042:344012","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-05 (322504 rows).

1. 0x7c757a08f0cb6a58559200727997d00ef2a15b20fd454af36439afc2979644b7
2. 0x9c64679f65052e1af18e218398a50e238090d2c036881cddaf3df309149d7c29
3. 0x87bf989d8121f988d20e8653c91e4099770f8306c2e307e67b5b7fa057e28bf9
4. 0x75d7a46a11ad922e0ca8be0986ba1bac2883368f0de6ddb246d0d62a9ba51438
5. 0x5f9284d267342d13a51dd6a034d5eab51db7e16bdbcb05cd0bf622ff10207a73
6. 0x0d3f50370a8902e4d3f964672589099e957dd02611efe53b0627d0a2a6080d31
7. 0x5c66202af7b932c489cdef0269aac6565334fbe4d20d35c24ae17dd8e4db4a37
8. 0xbde7d6393b131e6071996ecee7e12ed6751b1c338dc3a9fcaa9586259dfb682a
9. 0x1528298342a6bb47a656177cde960971eac55e063a910e545746688204965a0d
10. 0xa30d73cf9cc95f5876081e111410a621b6da7c4807670169f86b36e22cb334c9
11. 0x9e7d52b7e3d01c4945271851084a1186d707c04da8be81f831c29a33157113c0
12. 0x00db3d0913f7c3278d0e84d16a7aa62cfdf945cfe6f32ea2fc037c624c1c1c6b
13. 0xed381cca54c60ca2d3eb586e827c1f96ec5f9b9b163801ed5063713f403aabe7
14. 0xab8d9c6e2bd5035f3d9a605a747d989051b8ebc54de7e83559f48ede8a744991
15. 0x644b3663b447930221e9fe24f9d97eb640daf058f5ce062e43895179e35a3628
16. 0x3b5d12e41df15017099876c1435af6ce1c7a30cfddd96040c3878ac62de1dbc3
17. 0x7e5b4628b4269525ce0744fb873651b9d7be5748de44b7e6b858af09c7e30bd8
18. 0xfb4e1f4d701ae273fb0cd57757f659e327608e5561a752b2099b436618493c84
19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94