addrbookFor publishers
← The evidence ledger

Evidence row 2561446

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:174195
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
1aa82f9d8a3b85cf131c702707a8a54fbc83dbf2527352faa24a97d041e7cf65
Leaf
0x04bed09bdc3ec61582ca101d82d4cd79a50624c5339c6733f4242ec2892d0e7e

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/yIdTBr"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/01514599-ca52-448a-ba17-9191260b6d03/.well-known/agent-card.json"
    ]
  ],
  "name": "Markasis",
  "owner_address": "0x865f72e677f070b3a6ebac8cef52736aac4bc035",
  "raw": {
    "agent_id": "174195",
    "agent_uri": "https://centralcity.ai/a/yIdTBr",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Markasis 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/yIdTBr",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Markasis",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/01514599-ca52-448a-ba17-9191260b6d03/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/yIdTBr",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T09:48:19Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Markasis 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/yIdTBr"
}

What the leaf hashes

{"body":"1aa82f9d8a3b85cf131c702707a8a54fbc83dbf2527352faa24a97d041e7cf65","id":2561446,"kind":"listing","method":"sync.erc8004/1","observed_us":1793699299793825,"prev":null,"subject":"erc8004:5042:174195","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. 0x04bed0337dc79f588697c013381246a87715013978c622d833f212f1d0373da1
  2. 0xc677517a737b76fc8d891935c4e7ca08a320eda9f388be93c2660526b3bd325b
  3. 0xa0bc417af7144d3c919918b2dc637c2bcc223f35637fb69411301b4f06551868
  4. 0xcf77e2b03e8f39e4c3982d89af1f25af657d20be8a015e9003cc9eef3b441a48
  5. 0x261f170f3e545efa1d7bee7b2bf77ec557ded6b5b9075fc9e6f329058b4668f5
  6. 0x148f5539e3ceae910c252db3c550bd46af59b2fb81896c58de8f7499c342e498
  7. 0x8b8bfac5dffe6b55d484cc7987dc6976b08dbf5816e53a8e1418b57c453f0a88
  8. 0x44ab7320e26b3f2a63c877e3367d56e438554d0acd72b5719aea87905daae8a2
  9. 0x85ae791003067c4dea1e0950de998ef07d3738bf3e64f35cb44c754ee7c2f016
  10. 0x8241d013019c0059f8eae692ee7cc0f6bc87d43d12334257c947c133ecadb7a6
  11. 0xd6554cad2e3a0d024e67abe473592295dacb77166d8acd832baf64be5185d433
  12. 0xaa16274fb697ff284124b3e00ee202a476442f891c7e4c41eb280f2400242f67
  13. 0xaec437d1d1c6ff6e0f177901126ae489eb66919a42d50ffe51bf6fdce48420d9
  14. 0x38d3e4f5af0a7695cec711b235344c4c2a36bac0d573eb1675af35d5916bbc2e
  15. 0x4c65946e46ac859ee8bcd510bd1ff838776ef9d9a553f743da25e2fd4c4ec5c8
  16. 0x06da6e1933d86a9ec29befc4660e18827c5663bfa2083536fe460228c0434945
  17. 0xa82fcd0af08a38380e777cb578b71498d941c589c6401f31d445e1685adcc978
  18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON