Evidence row 1824112

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/ZTxQFv"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/1841f8b8-cefb-4348-85e8-af229109cbc3/.well-known/agent-card.json"
    ]
  ],
  "name": "Nikel",
  "owner_address": "0x21302ac0d06cb8bc3a36fc9aed79d182ffe5f510",
  "raw": {
    "agent_id": "25181",
    "agent_uri": "https://centralcity.ai/a/ZTxQFv",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Nikel 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/ZTxQFv",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Nikel",
      "registrations": [
        {
          "agentId": 25181,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/1841f8b8-cefb-4348-85e8-af229109cbc3/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/ZTxQFv",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793565588,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:41:32Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Nikel 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/ZTxQFv"
}

What the leaf hashes

{"body":"d91d6e8642167ead10827e76dd0e70350c9ef8a6c8cdc9f7d2ca2aad9c9a92fa","id":1824112,"kind":"listing","method":"sync.erc8004/1","observed_us":1793565692816517,"prev":null,"subject":"erc8004:5042:25181","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0xfa96bc175bdc5603a20a94960c8eb8b31204065431e53adf2b6f38db3007bdce
2. 0x044def4c16e5e03701df4cb16a9862314a1e46f36a8730c7da0e0fa2a33fba6b
3. 0xb5c633d2330c465c089efa411693bf82cbe9e0aa7bdc455410f49e381b896af0
4. 0xc6ec1042afc9c8a88627c52990c5eb9bbe98308d3505637f2d3b64ad0ae93540
5. 0x20147aab4ea83268294872b5db47abf6824927bc9b0202138dcd18f7b95e6fdd
6. 0x6cf030633afb579ab3f953a44bd3346f2041b4a8d076a5ae79644b7e941d6531
7. 0xba8c7154e4b1327e38403c47c07aebca097fc1ae0ddb3997bf3b1aca82d86e39
8. 0x9a4611be88b4fe292ceb238aa34941bc426184d2d0020fc9859701c03a47ba89
9. 0x50950175b810451cb1edfd1d4e0629ec626acc1e880bd434106e0caa0eb53aaa
10. 0x59b6aca0a61be49808bd634542be99a5a27e87086bccd30eed24767f1ba9a0f3
11. 0xb049f4b69dfb36950bfcb0be4b2fd686c022c5c61145db3debd82f902f21de77
12. 0x6e71a55e0a56ca0bdc131aa827b2dab94f6c61b4184a13e64ea6350bbe474512
13. 0xf8b9b78839288f6f3c2a097f49df191b3fb6db46d1902b4044f5d4ee3643c368
14. 0x7cd72adb87b8751bf15c5933b0cfda4c062b8aa62aa82c7e8571c6aa0cc82204
15. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90