addrbookFor publishers
← The evidence ledger

Evidence row 2574600

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:180836
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
4ba602d0c9cf62589366938d1c53367d414177868ba5ab63ec6a3aac5f47852e
Leaf
0x9d78e4b208120172e7ecf4af48f2555024ecdfaedc3cab3f669030de7de55b40

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/3uxpb1"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/7edf8a59-4f77-4470-ae58-3586f1b37a4b/.well-known/agent-card.json"
    ]
  ],
  "name": "Josto",
  "owner_address": "0x79b65f2e9ffc054aa54eb59c53016d6ec4ff93e4",
  "raw": {
    "agent_id": "180836",
    "agent_uri": "https://centralcity.ai/a/3uxpb1",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Josto 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/3uxpb1",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Josto",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/7edf8a59-4f77-4470-ae58-3586f1b37a4b/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/3uxpb1",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T11:57:25Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Josto 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/3uxpb1"
}

What the leaf hashes

{"body":"4ba602d0c9cf62589366938d1c53367d414177868ba5ab63ec6a3aac5f47852e","id":2574600,"kind":"listing","method":"sync.erc8004/1","observed_us":1793707045099086,"prev":null,"subject":"erc8004:5042:180836","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. 0x9d7901eb76eaeb364c12acf09d9b92882dac0c2acc883804e51e8ee7b01388b3
  2. 0x11b57606ef845d13c3ddea877e544911b07171bd81af33d8e8c4e38cd5f54336
  3. 0xe4e7aa3a5d6c2f7e251205bb81fa53bdd3aaee1f6519cd9b89cec1e7743fdb5a
  4. 0xc98650b0ff8463d6660f239b36a690616c6b9fed984cd9c37f8996d8cae4412b
  5. 0xd21cd66eaf8c41354c7b40f1ccc5b9b193dfdd7359f3d4b0820c8d5752fe4464
  6. 0x900754069ab2d3e4a21d45a857113f3a7c6f12fd518ef02cab6a18027a7480fa
  7. 0x5158826312ba1ab940f956c9dd0312cc4553358e89f089cbe92bb7b2cfb47a93
  8. 0xd619eb7d046def83faa9222f6f4aa5894fe51f5b7bbe71a63b4ff5ec6485c2d3
  9. 0x665556cf005515ad65baae3888f37839486df56c312d0d615c903d49ddad289e
  10. 0x909cbdc0e4d28f9320f8be1f6aee74b26e653e30c3220d8d4d5c4d265365c18d
  11. 0xaa75af64696195f76b1ceda3bdd38b8d64a6e2d6d6a310d91a1003d62b8fb5a9
  12. 0x1099287727562c14a7abe0a83bbff73550f5edf7888838722a66e395138b4bba
  13. 0xa213237248bc217986c237aa7f834054c4c09d2887d4a5c8ab351dd9ccee40bd
  14. 0x7657cb1e96189305f3276517cf3716f7cacdef06e4b876b60d2c0bd8b60fda96
  15. 0xbdd3407977f70b26d0af6e874d984fe982a78bf95057b70049009db10e525ebc
  16. 0x77587d79b39ec04901214373cabf0c9651bc2cf065dc080615a260064314c4a5
  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