addrbookFor publishers
← The evidence ledger

Evidence row 2505344

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:150939
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
4b08640dce01ad99ede2bc83c301986c9123400acf037b1a880db8cbf6905b58
Leaf
0x83387b5a0931c44eae6633d5a02e39e8644c13c901fd5240ae193df79475dbd4

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/ZYKMan"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/e85af32f-d50c-4577-959f-36b8dbc94ef4/.well-known/agent-card.json"
    ]
  ],
  "name": "Maasa80",
  "owner_address": "0x7af05f0e49ba56fa39769e0390f0f8904ec3a5b5",
  "raw": {
    "agent_id": "150939",
    "agent_uri": "https://centralcity.ai/a/ZYKMan",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Maasa80 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/ZYKMan",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Maasa80",
      "registrations": [
        {
          "agentId": 150939,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/e85af32f-d50c-4577-959f-36b8dbc94ef4/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/ZYKMan",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793672294,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T02:20:31Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Maasa80 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/ZYKMan"
}

What the leaf hashes

{"body":"4b08640dce01ad99ede2bc83c301986c9123400acf037b1a880db8cbf6905b58","id":2505344,"kind":"listing","method":"sync.erc8004/1","observed_us":1793672431993279,"prev":null,"subject":"erc8004:5042:150939","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. 0x833876c165eb1cfab6388061672754698e8e861b490d102cbee3459af04c2e95
  2. 0x02592a1071d52b24c0470b40551c0e33949b9d401220bb862c018e0dc983926b
  3. 0x6587e43407913a0e136040f13b94e62be7bc9ef4fec72c3fd08ba017690d2b3c
  4. 0xcea9e40bb6081d796b56d0c25b57316d29d86cbe6d9bf23f0442cfc3b9041358
  5. 0x5aea46b95e17de34f844b6b885d40e430910a40a6a7bdf9ad872f620ef0c2e0b
  6. 0x236a85727589c95e43e0e081923fb544a31918efa08f8892446a688dd842c8b8
  7. 0x0d1be1024ff21b1bc2c8771c57ecfcc546b243b4cca5451054c00be990e38281
  8. 0xb18dd6d7a4bbfa75af430927eea810688d7af6ead2b000a5ac7f4086dabd5be5
  9. 0x3d467fed559b8e09e9305e451f5a86179421741a7c78eaa73e94f78758fb6c23
  10. 0x46bcf664a62f467e7abad52e449f5e7f065acedaadb873cf10b803312e361347
  11. 0x1f220fece15b15879a7e1ad5e8cb51abf7e8d63ba0106281b0cf3e240e1be460
  12. 0x309576acb6947379790a6ba6d95e16f9963844fa5ad432e6da539debb5405a03
  13. 0x4c1bb7805c28c99914212233f31f3f9b3d39ed6d0209166fbe8eb2e894fc9168
  14. 0xbee84d3e599fe34053b7031286879fa3c8cfb9cc2a5d0992b542033701205b5a
  15. 0xd7fa57d9cb0ff551366a474cfe5dd932be199a84a12f0b57b253725627acf8dc
  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