Evidence row 2188039

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/bNXzwD"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f7b00125-526c-4597-abce-942867998f63/.well-known/agent-card.json"
    ]
  ],
  "name": "Niobik",
  "owner_address": "0xa13f17c166ed0274dbf73b6c65b963f3ad7b126f",
  "raw": {
    "agent_id": "120382",
    "agent_uri": "https://centralcity.ai/a/bNXzwD",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niobik 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/bNXzwD",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niobik",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f7b00125-526c-4597-abce-942867998f63/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/bNXzwD",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T18:12:34Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niobik 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/bNXzwD"
}

What the leaf hashes

{"body":"6fe4d7d455eaf06e3ebbd1df027b787c4c0a0fc5cc867f0021850308aa55029c","id":2188039,"kind":"listing","method":"sync.erc8004/1","observed_us":1793643154254006,"prev":null,"subject":"erc8004:5042:120382","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. 0x7ea814f8381141af970facde0ad7030ce09334f294cec87f3b7b4daabfff44dc
2. 0xc23444fa48ed4d398428e05c5bd45a93962c84f52ea001c79fbf2a636f0383e2
3. 0x64f21ee1dd7b510cfb1519d2e67542140a7ab30e9ee4ac222dbef522a8ab8f17
4. 0xe7d95f7a2024dcc5a44923f08b8d636fac9c1e8dc642dcd5c61c5ebe0c1278f4
5. 0x0ec3d09b809714ef1b29b5f83969808e913da600469d3dc3269d3812e28deb7e
6. 0x2b8efb848b406d7ec041549dc0cb360ddb46ad66a03b84a75887e6eca476b27f
7. 0xf71aa9ac11303a30fb6b9de3f99022ac30caa9bbb871e9de9e160b21a8d9b114
8. 0x0eba4f254f9dc85de8889544ab892fc6b4224a4b9dbb79cf7464a61380360794
9. 0xc93cf4914d3445e1b5e2ed5b0422b2da7b94b8512c388d9d50c3210c1ae99d32
10. 0xf965f6d3a0a1ad7ffb889913757d012580940ab6e07f9c38696f0c440b984ff4
11. 0x9199ad395cc1f1760b07187fe8eb98f45c9bb6112ec37236facf6d8042ec62f9
12. 0xab3bfc6956e0d2d9bda3875a9c1d784993791f3bdde29d6d08a3ba5bbe6e620c
13. 0x8e66b29b3c90df538b0747f470a8bf19f7d97dcd0cb8f1d9345876a0f21cff35
14. 0x3e60cda43ffc319c006284ca48609bc80da357b45fb9e0a57810e00816d3e8e0
15. 0x46991481c678139203ebc3c532867ce1643c09ddc33966c4fb48bb7f033ab22f
16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af