Evidence row 2123779

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/elGZO4"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/c78284b4-6d13-46f1-9372-fac5c7ffab89/.well-known/agent-card.json"
    ]
  ],
  "name": "Massano",
  "owner_address": "0x26f683627ffccecc43a7ae1c2d2fbc449eea04b3",
  "raw": {
    "agent_id": "90308",
    "agent_uri": "https://centralcity.ai/a/elGZO4",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Massano 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/elGZO4",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Massano",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/c78284b4-6d13-46f1-9372-fac5c7ffab89/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/elGZO4",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T11:44:52Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Massano 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/elGZO4"
}

What the leaf hashes

{"body":"edc8db1672c5cdc352186bfb0df00f6b71eff26cc3dde5a10664b3405d840d1b","id":2123779,"kind":"listing","method":"sync.erc8004/1","observed_us":1793619892040535,"prev":null,"subject":"erc8004:5042:90308","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. 0xc9507868e44a3c204fd458bac3d832f132728eaefaf4f92771807434faffde09
2. 0xe3654c2604e88ef2253f49c5b1f74ac59a502b1977ca2f1bcce1a195e9f7ba66
3. 0xd9bd3fdb01b0348051e4288840af9fffdb9061a1b305257e06e80f514934560f
4. 0x433c966803f0c9a1d1641567107992ecf385e60dafb41c2395e5b4b3e6107add
5. 0xc1486ee84616d7b7c30127ca69a14140cb26b0d166b62f923935d82e2e9e6a2c
6. 0x03d8b632ab0c22029d012af3ad726f1168bb4c3bfd68c224d35c0fad54221cb0
7. 0xa8e4b2413f8d7a4f20f228b525d5560bdcf2eb9cb086d91f1887333885a236c1
8. 0x378b5bd4721c28f7f887f9172b7b1e6905557298d8902da382bc350baece56ec
9. 0xd70b45d4191f2895fc270ea46ebd590dd90a1f3e94ad8dc7e20ddee745c2f017
10. 0x3a7f738c661f19ad0ae5791d49a5dbcaae343ad1a31d2e678c96fdf40aae6ac6
11. 0x48bd4b0fe6769b0686612012dee2d1a9cde4103d97e6fa7054ce251f18ab47ba
12. 0x5960e83ed1a839b0c9a6ca8cd51fcd088a6b59d306e456831c1bae56f718642c
13. 0x0c0f15fae9c65ebf110db9a83b92aa128ce387de0137888a7863d81f3567dc04
14. 0xdfd116d725e076b0e3bd74ff5682dfe6834735313673c580d2e58972567174a0
15. 0x5b456020389d8e0ef67f16a492c600b5b88189e59398bba308734db7e873e7e4
16. 0x37d31d28d0bd3743650d57e9fbf999efa4592cac831267f83aa125335b35a16b
17. 0xdb8bd933619a267f9790faac9839143d202be46af284371cc369cdf683f897ba
18. 0x98cbbf2c68ab4c0b4db782aeb88bea1f30b02178cf8b5d3d24a931d19492ea6d
19. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af