Evidence row 1826017

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/I3Tqrk"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/f1fc4813-8e26-4365-bd2d-732c42b2efa5/.well-known/agent-card.json"
    ]
  ],
  "name": "Grassan",
  "owner_address": "0x92ad9ad7dbef3cafe937c78e39ea1ab97a61f9d2",
  "raw": {
    "agent_id": "26227",
    "agent_uri": "https://centralcity.ai/a/I3Tqrk",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Grassan 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/I3Tqrk",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Grassan",
      "registrations": [
        {
          "agentId": 26227,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/f1fc4813-8e26-4365-bd2d-732c42b2efa5/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/I3Tqrk",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793566405,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T20:58:42Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Grassan 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/I3Tqrk"
}

What the leaf hashes

{"body":"4b52412c38edfedcb46d71d1cc80e57bcd172b332dd0e49624c7f2fa6e318d5f","id":1826017,"kind":"listing","method":"sync.erc8004/1","observed_us":1793566722344230,"prev":1825716,"subject":"erc8004:5042:26227","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x7f03ee441479750da2c5f35bfadfc00314f59db25d141c2210e263bc4eee0b4b
2. 0x81ef94738a28d99bd0921d1fb697287a2a3f8292bfd325862d2a8a92f5998930
3. 0xbead7f5ff2fea1d2d10e7a3134ab544d161cd10af79828b8f1cabfd34b23c671
4. 0x4b47bf40ba100d681d0bad6c63048d0b371d5ca839923facf2bd3666dc6fa241
5. 0xa0d61f590b19f9f6c7bad8cf8946915990333d2d073cc68c880013e6f20b807b
6. 0x449c24318c36502bdc1a9e18d372eeeed5ffdfeaa5ce7dda5828f9f664324a61
7. 0xef5ac71221548a8efb8fe09a33fbf640f64753582113590a0c5913d70b1ea31b
8. 0xa764135a7716000ef65d60a364ceef2cedd684ec631c68e3a92de332bac38137
9. 0x31245def6b08cc0fab5eca04d9dd43bd2dc98b2bccef614d68c839af28454986
10. 0x7ac482d2a910e0ec4a525a7ffd8791ff3cbe80139eb79a122af1de8f652fa5c5
11. 0x3a50b0bf1b117feb2a8b10ad9a37fdcf0c9d4c6468f0a98c396f3373427b5620
12. 0xbef89f30edf79e35d1e5c3609040274f03bf6b5037e6619fb8bba37e42ead800
13. 0x0d7168eda56f959819319294f2344abf3e83a06736c3ef37f9f274fd0bf74ed0
14. 0x19ce574eee56ae085b2ab0004d191db3debc9d29cba2d71de21a8710ca8151ed
15. 0x3950a937c3f98cedf9cbbc2f8905c10e3aac8ebc54b1e3468237d58bb254c496
16. 0xe329dbfb0db2c7f35334e66970a8ee37ee2d3356d34d692c10f84b6f7de65a35
17. 0x0c618c42b286ad61acd8204aa6dcf024b8b041d3759aa585bf4e221abc39cb5d
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90