addrbookFor publishers
← The evidence ledger

Evidence row 2579701

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:182425
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
9a9a309f772e40fff87c87841e7baf7a941bbaea794e80bd228afc8b159d1696
Leaf
0x9cfa9e8b54ca097dabff3e34a3ad236fe574aff539a5ac75872a8165f64a4514

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/0t4Ous"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/71af4472-23f5-4c14-acab-e729926cdc25/.well-known/agent-card.json"
    ]
  ],
  "name": "Hallabel",
  "owner_address": "0x036df392773cbf30456431a9dd73bc10e4957a18",
  "raw": {
    "agent_id": "182425",
    "agent_uri": "https://centralcity.ai/a/0t4Ous",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Hallabel 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/0t4Ous",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Hallabel",
      "registrations": [
        {
          "agentId": 182425,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/71af4472-23f5-4c14-acab-e729926cdc25/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/0t4Ous",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793708988,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T12:31:27Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Hallabel 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/0t4Ous"
}

What the leaf hashes

{"body":"9a9a309f772e40fff87c87841e7baf7a941bbaea794e80bd228afc8b159d1696","id":2579701,"kind":"listing","method":"sync.erc8004/1","observed_us":1793709087416285,"prev":null,"subject":"erc8004:5042:182425","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. 0x9cfa41b8892715f3d842c58431fb985eb1bdfcd9942ccb536ed2cb2a53534b34
  2. 0x99d9e4b13ec27e1264e5e1ece91eaa298aa8ab784188767f831440f3e4868a87
  3. 0x3e7d80ecf6d03298edc090272d308576a5aaeccbd6033d71ad3d38e087eee69f
  4. 0x21f3ab23392aeb5a092b05b324fd1ad5c9b2e820b0ec9bcbd64b02cd39897863
  5. 0x91810a620ddca4a418d5ac98129882672d38e00bdab5e2fab6a4aeac1da2c3c7
  6. 0xd95583fdd5590f5b2df50a235d0ebacaf7265c8f19db5c2ab776e6ee8c7091dd
  7. 0x45ba28466b96bb4fe6eaf632a081f1859ccb57d3e7aac36c80b9e47addecb5d6
  8. 0x6c9a3e94bf227fb488577aa1a5093320c7012c4abfc95ddd57be4c784a019bc8
  9. 0x9c31e5deec2c505224cde9714c44398d4b462f942a31b9b9574e9b9e08c830ce
  10. 0xf9a3937113c8eab7acec98ced87846c8045315b57b3cd98f8f39e392f1f647ff
  11. 0x40df8ddb5958ac50a21688c61502d59ab453174698db5d36d6a05ab19a14aacf
  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