Evidence row 2122412

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/UE7ypg"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/9223ea8f-f824-4349-8dbc-d9db8e63280a/.well-known/agent-card.json"
    ]
  ],
  "name": "Sintero",
  "owner_address": "0xa3204f833de2e683e8b979f5fee43df4569e747e",
  "raw": {
    "agent_id": "89544",
    "agent_uri": "https://centralcity.ai/a/UE7ypg",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Sintero 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/UE7ypg",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Sintero",
      "registrations": [
        {
          "agentId": 89544,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/9223ea8f-f824-4349-8dbc-d9db8e63280a/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/UE7ypg",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793619408,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T11:38:55Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Sintero 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/UE7ypg"
}

What the leaf hashes

{"body":"df9382dd1805cdf4a21ba8105462d4acd84d3f130ecce282c521c3bcea09c26e","id":2122412,"kind":"listing","method":"sync.erc8004/1","observed_us":1793619535641532,"prev":null,"subject":"erc8004:5042:89544","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0xe270acd7c114b3009f209911a78d53f1e47d531fdedd1b0626e8fb473efb491b
2. 0x9fb3a12188a47a2d9abcf33636901167362dc21ee38cd21e7e674071e46756b0
3. 0xa1c9e17597540a28591dd961206f06da81e48b65b47c6e9ead0c2a1fdcb5caf3
4. 0xcd860f562b92cf59fa781378b7924acd3839b04e7c4163fe45122c5c75b51c05
5. 0xb5c195ce4cb1a04801fba0af49d5f4898b588d36276a7b1f3397532ee4c2d743
6. 0xa391e0eefd26c25f2fcd34d0f4853a176cf8ce35f0636faa51ba30c2f32bfef8
7. 0x0adbd056a79a7778b197b0f6e7fc153d29262e5d68d69b60bd42cd54b34d9f33
8. 0x0e3e2b8a8fc5c26af7f88b1c5c5fd68286eb67358231b305ba1999fbd9478c4c
9. 0x8f21e7821ffc5831a487fccae9f30b4c729633b079f71522a6f272b6b8842497
10. 0x10f3d3e791cea7b8e66d551bfc7071facc3f8f2922d9a546218a9884003a8448
11. 0x00a410cacc46001c3ad375a22b21ea741d3ca8cebaebbcfb24eb5a888caee471
12. 0xa425522b81e7f1b0749052147327a6c322a17427ffc07733771c29e826d80c1b
13. 0x5dd9fbf811b05f3e5af51f812b6eea86a039a192f115aecc0fd37a502e3a04f1
14. 0x3e441d3f53c7b69d6c73ef93d327dfc3071a522c550856540832b34fcb531738
15. 0xd643f764eee39146411d4bff8903a327f4f8f55616e14e57281a245206d6ed2b
16. 0x6dd7e4db65395e8670c7c2747d44fec79e03305934ef4746bf5dbca04ec6ec49
17. 0xec5d643575d83c9e07e65deeef71943b53cbf3007e7e2b9a6ef414081509b0cc
18. 0x252cce55f1a3d5391c16f82d7f62494429a5f69b03486d4cfcfb7b2c96d6c884

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af