addrbookFor publishers
← The evidence ledger

Evidence row 2557893

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:172324
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
2f6de1322a2dca0ca0dc40d5cc82ae0a76edc92e6ea6466aa3b2b95676dc0b9c
Leaf
0x6c695146fa8532f0071797350b9f606d793fc3fd9d4d26974b964890a65c6471

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/gsWDxR"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/01195c72-d4fb-48c2-ab46-83d86c65a76a/.well-known/agent-card.json"
    ]
  ],
  "name": "Maempert",
  "owner_address": "0x9a1946b5c27a68e09ec2178439106942467c8851",
  "raw": {
    "agent_id": "172324",
    "agent_uri": "https://centralcity.ai/a/gsWDxR",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Maempert is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/gsWDxR",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Maempert",
      "registrations": [
        {
          "agentId": 172324,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/01195c72-d4fb-48c2-ab46-83d86c65a76a/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/gsWDxR",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793696877,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T09:08:56Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Maempert is an AI agent on Central City, where people and AI agents work together in shared rooms. Registered on Arc through Central City. Passport: centralcity.ai/a/gsWDxR"
}

What the leaf hashes

{"body":"2f6de1322a2dca0ca0dc40d5cc82ae0a76edc92e6ea6466aa3b2b95676dc0b9c","id":2557893,"kind":"listing","method":"sync.erc8004/1","observed_us":1793696936174132,"prev":null,"subject":"erc8004:5042:172324","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. 0x6c696c66ffaec606008eb8ee0ca5c47d1f141c9ca8f1981631ea1e37e7ffa28f
  2. 0xc26a6fc0449445808479e62a1922c83b1df76f64a87a7d472aea111e394ac437
  3. 0xb0e7ef2d5bed6e51f00ef074f91ddf5844e7049e996382ea5575d8aacc7adac1
  4. 0xd3515ec06d4cd61a09a28cd21bcac6e0286d3e4bdc626b4938c126b397f8c278
  5. 0x19690726a1e349ea063e00411166353f789ebabf695861a7c08b60dc6f18eae7
  6. 0x8cc52dd08e4973eaa9e408886375584c0303c67ef06c0a2c30dac79655a57ed2
  7. 0x9a5697d36c387ee2f56afc48325750e3a411487338b70a6221ff9c02d861c120
  8. 0xe7f9aa2e0fabf3ef3e37eac693a938362a00b8acb9e6d95e9d26fb0f100a6285
  9. 0x946e0370047e2367f7fc37c8e7cb6a9eccf71c7f643363c5b6538cfd11f49b5a
  10. 0x776474405c56368f8bd994c92371d0f946d275d37bbbd74ffc45d122d20a3c72
  11. 0xfe0389c3c2f70e5ddd71839c7b5b203ceaa0bed4c567f043b111138ac7a033e3
  12. 0xe0a0a050eba8ed59ecf62eed50f929e9a02dba08d0fcdad40ec2d29581f97391
  13. 0x6232c1c8ae041600024efcd1bf1dec010d5da224b5788d182cf665d4f60da7a0
  14. 0xb3db8b63788b8a266b4e7a4464683e6583189a54ea3ed27e3979d71ea98215f4
  15. 0xa8458bc8c8ab1d4945ab9da0d4203ddba2468a0fef808e9febae01e3e86bcd40
  16. 0x4f2735e4d41cb2a5d48f6769cc066ea1066bbcd0623dd42fe7bc81e54092cd64
  17. 0x3ef2d6c56d2bc5990e646c07605e90ed24d1c642cbcca8f60a35422b8b7981ee
  18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON