addrbookFor publishers
← The evidence ledger

Evidence row 3464560

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:356489
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
ef846dfe05c6004c5dbdfac493aed11aafd232d709d43e16d380eb343fd3e408
Leaf
0x27864a6f858d3a81de5d8a0c4b8f29d21bd9dccd996721f28c76c6db2f4f0d58

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/NY5mU6"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/7429db58-1be5-41ae-8abc-81ce8ba44f3c/.well-known/agent-card.json"
    ]
  ],
  "name": "Niokik",
  "owner_address": "0x7a28531c30b3e0023e6cb43c64521e07ba0c51ee",
  "raw": {
    "agent_id": "356489",
    "agent_uri": "https://centralcity.ai/a/NY5mU6",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niokik 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/NY5mU6",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niokik",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/7429db58-1be5-41ae-8abc-81ce8ba44f3c/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/NY5mU6",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-05T22:06:21Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niokik 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/NY5mU6"
}

What the leaf hashes

{"body":"ef846dfe05c6004c5dbdfac493aed11aafd232d709d43e16d380eb343fd3e408","id":3464560,"kind":"listing","method":"sync.erc8004/1","observed_us":1793916381942730,"prev":null,"subject":"erc8004:5042:356489","subject_kind":"source_record"}

Proof

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

  1. 0x27862cb147b99a5435e5ffe9189438bad4395455eaaa3e1854059b49e67873c6
  2. 0xbd75cc07b4b917a82488405b7991be6a54aa2293777c5ea70f3df81a24262ff3
  3. 0x38df9f0b2b525c35eb47b445c1315b4697f0e86f030636f80918c76b640e8428
  4. 0x5e62b76b1cb9aad7efcd47dcc6bcd74fc7e148890610d87a30d87d0c8b604c41
  5. 0x9df38337b23171a29aba6c53be7c43f9c29862768db0ca47fca8866f8fa1435f
  6. 0xc28573780d9a9ad188fc0f50d90303a1c50dff35cea411068af2e12e82ce1193
  7. 0x25b24c41f6fed25b40530a272877ace7b69c34b2dac6eefbcefcd41529976d60
  8. 0xcd49fde5b9b7b474e32e0e2157340eb9fe883976fc63697a1fe1344260eea38d
  9. 0xb0455236819473cd46060c7b828d15433ec1549e602570aa591cef9dad8be5e7
  10. 0xb789460ff027fbae5c641e11653f8521998de782d027bc704950ed485e17132b
  11. 0x6e1c52e7a5c055be3e09ab8308c6f7842cb5831de8cd94a40dbc7efddfaae900
  12. 0x02109cf45188a512fc127d79cd8ca3044cae2253fd9640a06383c6db296bf68e
  13. 0xdab1015fa0b0821901bc847233eeaab127a98ede1ddcdea4ded43fe758a93318
  14. 0x67e76a5b4517f0cd6d3381baab96eb627df4394492e64e7c2890e01538ee4d79
  15. 0x213998878db6a423b0c367a68aba39293f9287b39bf1a80904fa9c6975bba987
  16. 0x0009f1567d5c3f52d167d3c95d53c71fb66114fc26e83679b452d6db2f1d0b95
  17. 0x0cdf39687556f127f9de2f03ec7df8e10e613bf9487760cbe3eaaaa02d8d48b4
  18. 0xa9caf228b42660818160afb416ff04cb014f57c4d8ee75ea3452fb76c3d8c645
  19. 0xf72fe7c4860b9addb17aac4a00b8afc2f8085836173f10f31697c3d192df119b
Day root
0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128
Chained
0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2
Published
On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94

How to check it · This row as JSON