addrbookFor publishers
← The evidence ledger

Evidence row 2162566

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:107008
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
02a248c7cc3bf466c2e54c38557ddd2458b73be25b21fbb6926e4aa9d78e7d93
Leaf
0xf77abc89e13741114d72ec4f0c6cddfb44f027916cd6d2e51d6932ca7694ed1d

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/QTYSXJ"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/b9f489ea-98b2-438e-9091-6e704a2ef4cd/.well-known/agent-card.json"
    ]
  ],
  "name": "Maassis",
  "owner_address": "0x1d3c9c1c2ac715d79e57c897c0032ea3092bf7c2",
  "raw": {
    "agent_id": "107008",
    "agent_uri": "https://centralcity.ai/a/QTYSXJ",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Maassis 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/QTYSXJ",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Maassis",
      "registrations": [],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/b9f489ea-98b2-438e-9091-6e704a2ef4cd/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/QTYSXJ",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T15:14:49Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Maassis 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/QTYSXJ"
}

What the leaf hashes

{"body":"02a248c7cc3bf466c2e54c38557ddd2458b73be25b21fbb6926e4aa9d78e7d93","id":2162566,"kind":"listing","method":"sync.erc8004/1","observed_us":1793632489348597,"prev":null,"subject":"erc8004:5042:107008","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (444186 rows).

  1. 0xf77b054f39e764cede078fb2430bcb9dc02b717061ad6ce2e97eee800b28f2ec
  2. 0xd59dab09dff8f0c918b334fec8369aabefcd86224220c4c0746da10b8da4d03b
  3. 0xc0959dbc3b99578d88afb6ec2358ddef915e89561b8b18c0e6d5d143a1dbbb1a
  4. 0xcdfc3f7df7c87da1ece7c7fedd8095651cac3f2d211771ce6fa7614eb3499fa2
  5. 0xe99e10b432f4ea8b2629a173a93b637085773efc5ec2a4305acb4ba791766b4d
  6. 0xa457c34f918cf4b3fd93f245b6a569ee0fe918d5ac70981285dbeb0a6c036afa
  7. 0xeed4c2146b7c7ba84e3f8cf0021a38a0805cbcfc89bd9426a5d51784049a042b
  8. 0x5a95f215159f987c6731ed5d10920a31f997383d7deaaab4a7b2d5bc702741cb
  9. 0xdad895fb9f92dfaf84c85470e35fefb70ba2e3ce9ee8bb1243c12ef2fe4df186
  10. 0xb53c0574b223a7b136990f175dee991ef479b99569b6ae47232d8781d3064089
  11. 0xe1e485a8d27668a5976b2d5832055d1e4425c667e5808932fbd2c3f56f9ddc1f
  12. 0x93c9b5204cb75374db0fc8940c7bb2dfc4f17b307130f5a55adb819570fd792c
  13. 0x54a66ecba86fe13527453978f73a6a3d80e1817889872b25f2a79c90d4b86982
  14. 0x70f4b5a4c6a4de9977aecf5fbe7497e271e9e2f9e5068c7dad5953e8fe898b30
  15. 0x4068a4306db47ea0eae5f76e5137753caa3dbb132dca6a61a4d6c1838a52700f
  16. 0x25127db2e775737b2874f6a159f7c1bf984317eea6482e94589c3ef4c5ccab32
  17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
  18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON