addrbookFor publishers
← The evidence ledger

Evidence row 2557358

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:172009
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
87e1edefd72d4ef84cccbe1243d2ce790a1b24ec407180bf3b75755ab9d7ba3b
Leaf
0x40488b2f1fb1d8bfda12edfe721d8a3aed1d339bfd9966935841ccc208cd74cc

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/bZgvZt"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/211f78ca-8c8f-4437-92a0-05055e12d7b0/.well-known/agent-card.json"
    ]
  ],
  "name": "Biaso",
  "owner_address": "0xf1376bd5a501b05efa18d8562fc3555f972b25cd",
  "raw": {
    "agent_id": "172009",
    "agent_uri": "https://centralcity.ai/a/bZgvZt",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biaso 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/bZgvZt",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biaso",
      "registrations": [
        {
          "agentId": 172009,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/211f78ca-8c8f-4437-92a0-05055e12d7b0/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/bZgvZt",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793696570,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T09:03:20Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biaso 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/bZgvZt"
}

What the leaf hashes

{"body":"87e1edefd72d4ef84cccbe1243d2ce790a1b24ec407180bf3b75755ab9d7ba3b","id":2557358,"kind":"listing","method":"sync.erc8004/1","observed_us":1793696600097347,"prev":null,"subject":"erc8004:5042:172009","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. 0x4048caf87174457d659d1b864dc007dc421299f8c121ee61ef8f1e003c29743c
  2. 0xe9fe9c22c3c21b0b455542d3e9070c7903ed9cd898166cdf54a9cd71411e353b
  3. 0x3d1d3e4adcaeda877418ae61197f77d045d6865c4ac526716e069715bc550757
  4. 0x188d92cf82a4208a5896773cd800e02f1a650570283646a2704d88f8c1df9f50
  5. 0x36e2c8dce621cc3462f7cfb673fc8975c1ae74fd7ec2979a5598eb955f51104d
  6. 0x4cd59ae3035b05eaa85663b06638f90d120f5a6b1debd49e230efd7de462ef09
  7. 0x4cf1de1b85fabfc5a3c98627d5460001c78cd60758dab54c615bdaf5c5d00f6e
  8. 0xc3e51b70ece289f70cb80387adcfaa2cb49eb33d9de1bf19ffa2429ab4e2928c
  9. 0x421baa6b4c466a4aec77baf171c863301ec20fe9696a696941a6a76b1ae9c0a8
  10. 0x7da5236da72d27fd10d04a326c1b4df7fabb7ecb0ea95a10bd95fab7da8e0376
  11. 0xe717fe528dc82a727aef7b570d4796f98566950364e8cbe8ceecc669034b7089
  12. 0x971a09d60f84e9baec85a2492fa03ec3a224cfa3a61ad351c4865dcbfa33b0db
  13. 0x6389fe0a64a454c99943bd099b6d3c7b9164c03f7e0cbe464480d5168f9f5740
  14. 0xb86edd36717aff076ef26c04db10a77f49a2dca8367fae52e69b19705922afab
  15. 0xeeeab58fe0869203702d6caa20f3db31453ec2f4ac7b99890f0842a5616a7f99
  16. 0x35ca4633a97853eefbf38aaf743dd7ff85a4c731ccc8e31a34fd826c3142d6ea
  17. 0x87df2ed9052c264d606c076742aa7e54b69fc8344b21e972ebcb19d020b7ecf3
  18. 0x012ad914f3f945da3b6b48eddc7a1388613e4afc04339deb76c609611864e9b9
  19. 0xe35032d4b064b015fe60638756eeb0bc24e7c7943586468d33349341ee0ed3d6
Day root
0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a
Chained
0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43
Published
On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7

How to check it · This row as JSON