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Evidence row 2721144

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:208376
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
c665bfcdcae957c6260a0517480017426cad142532ba56eef265e823b611a378
Leaf
0x3666c2dee97077fffb0d325d2004c606754a7b76524448fc0e167be803105e81

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/uhaXXw"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/c49280b7-6d26-4d4d-adf6-eb71efbeffaf/.well-known/agent-card.json"
    ]
  ],
  "name": "Maarkeon",
  "owner_address": "0x4f0cf440f9d2265fb99a328790f2656120b4af2a",
  "raw": {
    "agent_id": "208376",
    "agent_uri": "https://centralcity.ai/a/uhaXXw",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Maarkeon 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/uhaXXw",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Maarkeon",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/c49280b7-6d26-4d4d-adf6-eb71efbeffaf/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/uhaXXw",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T22:23:24Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Maarkeon 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/uhaXXw"
}

What the leaf hashes

{"body":"c665bfcdcae957c6260a0517480017426cad142532ba56eef265e823b611a378","id":2721144,"kind":"listing","method":"sync.erc8004/1","observed_us":1793744604302188,"prev":null,"subject":"erc8004:5042:208376","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (425475 rows).

  1. 0x3666d9289bffc2ec2f6748c80a0db15e6fa5097bba0a80b8f8ea7f1d59a41ce1
  2. 0x84a016bc5efa59aa0b38a048e2216e6037d7317fbba62beb0ae68311e52e8ec7
  3. 0x405f7b031a67d8cc433136e5830b621d78cec7ca6a5c78de5e6ad06bdadd4836
  4. 0xd56c160e894db6523abddcde4d28e2b9582d64d0d787418a4af7c46053c9564c
  5. 0xcc8f89384aa3116557755bec4b4d1666c109ba0379dab5f1ba1d22f5aa8f975b
  6. 0x6e8d7b874e92f9284eb8a9023bf5ee919e5d931b33f26df0e7e39ad5bbc0e0f3
  7. 0x508be5c34a649fa17b2469e37458aab07254adbbd387b03721f93577530177b8
  8. 0x6516f7e1da645b79410cd9e5de735707a112a848199cbeb2780095d12a4322e1
  9. 0x473a94c3f34d74d52d26f4048c276956f8cf67f2e1e871116b94e8df3e6058b7
  10. 0x58a715c1003680d4053cebb9442bd9c8d5409bcb3dd0c1ff914c7055bc7e5f4a
  11. 0x4ecb24bdc6727666f06ce753bd4dcbe32be7b82ee0fbec0dfc498920a48a15f3
  12. 0x8b1299a08a79a30071ae7270431b2f886df96a8fcf70897e23fbd22985336013
  13. 0x4435d30c5484a03bc119547d2071d78d19849c42083678f1d6af8d6dd8f74a98
  14. 0x58aed1257fcd4ee1c84710e1858bdde1ba134c86ed73f1f35a7aeaeacd9398e4
  15. 0xb1fe1f6398b7faed977bc6cc75b0a8404ef5a6cb386ca30aebdb7450b7bb6dbe
  16. 0xb1804d44f1a591de3b8b8db8fe72e8ab6695e6d154862ee8ea77b6ac2b43b67d
  17. 0x87df2ed9052c264d606c076742aa7e54b69fc8344b21e972ebcb19d020b7ecf3
  18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON