addrbookFor publishers
← The evidence ledger

Evidence row 1816961

Observed , by sync.erc8004/1.

Kind
listing
About
source_record erc8004:5042:20669
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
5e6d6636bbe7744401a3b2cec0ea1dbdacdbdf6aa8ef0c1d1a0b42864edf5776
Leaf
0x8a575e94421522c168ebdd9f922cd340022dbfe37e55848c51bf4a6c7468d9a2

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/wq2A56"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/59753247-cdaa-4d62-9e0b-988e0fe92305/.well-known/agent-card.json"
    ]
  ],
  "name": "Maesson",
  "owner_address": "0x13cb8c7033dc24f31a01885569e4a5fa751b51fc",
  "raw": {
    "agent_id": "20669",
    "agent_uri": "https://centralcity.ai/a/wq2A56",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Maesson 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/wq2A56",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Maesson",
      "registrations": [
        {
          "agentId": 20669,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/59753247-cdaa-4d62-9e0b-988e0fe92305/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/wq2A56",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793561613,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T19:38:38Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Maesson 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/wq2A56"
}

What the leaf hashes

{"body":"5e6d6636bbe7744401a3b2cec0ea1dbdacdbdf6aa8ef0c1d1a0b42864edf5776","id":1816961,"kind":"listing","method":"sync.erc8004/1","observed_us":1793561918092244,"prev":null,"subject":"erc8004:5042:20669","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of (302406 rows).

  1. 0x8a57d2047df6f9d8ce38a5d486f75d0cf5047b6ea597eac0d2872769ab472367
  2. 0xd54d27b08761fec6270a27b18ab3ee4c9e977542b556d1fcfe4dc56dadbfd4f0
  3. 0x62d87cf8e57e315d559695b888b807e3d27d807f875920a2f541aac166876c2d
  4. 0x524fa05955656ebbbfbe247c2f7359a00937d3945a546c1299c70f28ae17e6d5
  5. 0x433450bee7444252c1561c90f5bd17466a52cb54ff11031f8cf53be3f5fc2953
  6. 0x062aa845494a8e563ab9d2673551d06e4dbd5521c47f142ab0e0f0dc60db1032
  7. 0xe84fd33300e09d496021b9c8e923473867de9e6b349b3d45ed96af18e494136a
  8. 0x8b1a7acc4ad332ed52f87d97b2c46db9869efd7870459e70060e32b809d791ad
  9. 0x2620d2cfe373dbfaf5466b1232ac31fc635bf141565a39627af40aa7024b5f7e
  10. 0xaf8bd3e1cb30d8279bda97de98777f09e9725560ef53a038453168ee9f711ddb
  11. 0x26f1fa657c1474594efc54e49b759739b40e05c4063891c079f8b9fd76002590
  12. 0x9f9fe990673862e5cd52bf696ef9ea2c86ca65235b16170fd883287bee6233ea
  13. 0x77788e2b0f83c42b3024a8d425784a46c4c2d0777f8487d593e102e987eabf52
  14. 0x12d005bd5bab52a5295a7639e02ffa6fa98b5e18753f0f4638b668903af24ab7
  15. 0x3950a937c3f98cedf9cbbc2f8905c10e3aac8ebc54b1e3468237d58bb254c496
  16. 0xe329dbfb0db2c7f35334e66970a8ee37ee2d3356d34d692c10f84b6f7de65a35
  17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
  18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
  19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910
Day root
0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3
Chained
0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4
Published
On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90

How to check it · This row as JSON