Evidence row 1824156

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/f2To0p"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/458b992a-cbf6-4871-afb3-8b73a5a21e4d/.well-known/agent-card.json"
    ]
  ],
  "name": "Brisson90",
  "owner_address": "0xdcbb0c7b04f3decbd25fa91b9129df99957a77bf",
  "raw": {
    "agent_id": "25225",
    "agent_uri": "https://centralcity.ai/a/f2To0p",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Brisson90 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/f2To0p",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Brisson90",
      "registrations": [
        {
          "agentId": 25225,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/458b992a-cbf6-4871-afb3-8b73a5a21e4d/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/f2To0p",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793565639,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:41:32Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Brisson90 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/f2To0p"
}

What the leaf hashes

{"body":"26bf98a92d2be137ea8dc91182d0b3bf8f34d53c1d58c552776f702eb9c10b2e","id":1824156,"kind":"listing","method":"sync.erc8004/1","observed_us":1793565692950806,"prev":null,"subject":"erc8004:5042:25225","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. 0xefb7544ac9755ecd55af131f74a31525eb31dc2387ca7d7292b8f9a87646c3d7
2. 0x21b04c9fdeacfa7b11214a3c9f465f3efb7b59f683a83a486c03e1ed6778a2c4
3. 0x5f7203d3770c20c4035fd45decd861e32415f00b618088171f34b0c7e15cf1ef
4. 0x0d6454017b9858442883d27eda7948461b8bbf9a7d1a744076b8728b8f247ea4
5. 0xed60113aebd633202d0fae4d213ae77da3c2e2e7a5a93b0e0133da4118e8852f
6. 0xbbf082c1139a29c8076fcada5d2a5bf3eee6a5a5ea7c3b85e112d6e73904fb83
7. 0x37fc457cdacec16ef5d87c418061d8e031e9f6ee1e3ea2be8e89b5321c42c27a
8. 0x762d02d431f8c77157218d6afb0071005ce12db87969b0b1a0166e3b8f87368d
9. 0x7909312d44a097947094e56f1ce623e5a509b0d552831200de3e4ee7a4f078a5
10. 0x31f03044985d3e16737a154583128ac9edaa1b5f5136a21ad6310ef28d3b19b6
11. 0xa515386c3e038f87d1125a0876dc019f175f9e00ce412aea5bb8aab3801ff140
12. 0x1b5a8d6f871c578c6ca98d6b748b9433c45f26a6046ac5e84ea6551e53a17ec1
13. 0xe90b78263bda6cf595e6506f00151a77021430873ffa310d8a01f67d8991ca3d
14. 0x80f03705ce9ab50e28456bf4bcfc03de151f183a71db3234274287a24f946a1d
15. 0x624db22ddd30d851957cc9d44cc5b314f300cfe0ff69cfbcfe0b2a2df8fdd12c
16. 0x1023fddec22f7cf1aff98422f0e5714dcc4ca7df3408bb6d4550d6f770e5033a
17. 0xf7af9137c03da92bdd37d086da37554097bcd1fce016f93f2e66d18b71970c5d

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90