addrbookFor publishers
← The evidence ledger

Evidence row 2709619

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:203099
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
73c5332e5a28de958529be4d88c930d68273213da90af1c0da93f0e937adfa25
Leaf
0x7b7e534462499b0fbb17634888dcb0bcb7608109392393b8303a42cb5cce4cbd

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/y7IBNK"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/65f078b1-7b14-4863-b85e-38e27333bda3/.well-known/agent-card.json"
    ]
  ],
  "name": "Grampero",
  "owner_address": "0x689e863b9ce647b0d02402ea4dc671107d4366e7",
  "raw": {
    "agent_id": "203099",
    "agent_uri": "https://centralcity.ai/a/y7IBNK",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Grampero 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/y7IBNK",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Grampero",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/65f078b1-7b14-4863-b85e-38e27333bda3/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/y7IBNK",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T20:25:37Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Grampero 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/y7IBNK"
}

What the leaf hashes

{"body":"73c5332e5a28de958529be4d88c930d68273213da90af1c0da93f0e937adfa25","id":2709619,"kind":"listing","method":"sync.erc8004/1","observed_us":1793737537091423,"prev":null,"subject":"erc8004:5042:203099","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. 0x7b7e4859d20ce384a3b5df4a64cf146d7df1292813d6d63b86fc95e137c38c1f
  2. 0x6dc8a2bfdf4f9e09b7bddc3fea4c579ce626f73115641e9000585a8808e8741f
  3. 0x38fbbef2a653f8fa22959fd3268453ef7ae4df581c66132a34ec934c6d5d46f0
  4. 0x6b6e669d15f37ff64e9d9e48486c3afd7414090fcc50f08071c18dd22960bb2a
  5. 0xa0779cdb331125e37ebb27cf574868118a16a64ea621035434f65caf04f98e45
  6. 0x29250f20441e6b04a1e5ab164e4e1195cb7f85475b29185c37cc6a7cea7998cf
  7. 0xb5927d039bd97a36177b541b4f6fbe4d686461ed56ec27ed8a18904c6c4cb3df
  8. 0x08789adf52de54d3894da1836bf10d6ca970c8d71e5289ee5c674a102707d6fe
  9. 0x95e9b61a80e136ff04bb701c32c05eab828476a086b2a052de0e0881651bc98b
  10. 0x1202acb69b146e31c48523d446c3834f154e0a5d813821db77348f1c6de6e882
  11. 0xc9ef255b22709affc662d123cd1f00874ff97dc566d33174765a8c1d61bffaa1
  12. 0x06b79813a668927e85c33c3972f33b2fda07e8d0624efdc913d480e83e0f3be3
  13. 0xb64de2d145ac698ef5d991de5140767a8317e68a92d3cf1c5d78e4f7977a0d21
  14. 0xcd70da55bc68640bf37c238eb2dcd35a729f3a58d333a753be62a2aef7873850
  15. 0x273fa0d1dba912fbac313286feadbb113b263290d047849b0ea460936942f2af
  16. 0x4f4b24a0a0ca0387085210387f5358e81c7f788419e50cf11713524585340a3c
  17. 0x271a5f715272513f57457682f93389885577f2664b5ae5dcea924ad10a098eb5
  18. 0x717b5d7cbc24826c5b1f7b7433bf30b76e9ba1370476af4e1b494a5211897cc3
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON