Evidence row 2724504

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/OvvYB0"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/d28f549f-0da0-4653-9429-601a6a9308e9/.well-known/agent-card.json"
    ]
  ],
  "name": "Biontamet",
  "owner_address": "0x44c3e75e61cec3480a84302f89f596cfeefb1489",
  "raw": {
    "agent_id": "210088",
    "agent_uri": "https://centralcity.ai/a/OvvYB0",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biontamet 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/OvvYB0",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biontamet",
      "registrations": [
        {
          "agentId": 210088,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/d28f549f-0da0-4653-9429-601a6a9308e9/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/OvvYB0",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793746852,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T23:02:34Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biontamet 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/OvvYB0"
}

What the leaf hashes

{"body":"304d014f85b29cfdc9a7b202613be4ab99ef9c69ee2760f6349995f45e278a5c","id":2724504,"kind":"listing","method":"sync.erc8004/1","observed_us":1793746954198654,"prev":2724211,"subject":"erc8004:5042:210088","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-03 (425475 rows).

1. 0xe48aaa287afd79a62c320c7841f835ba5e2ef584e2e685b50ae49a85d4d7cd96
2. 0xf83dc2f02c195461da93ff2fa524f758ff80f7ea61ef174265acb61ad01992af
3. 0xbd3b3e0193ab060676774ce33f840954be3e3fd0646670963765fae1ad455d33
4. 0x7651bc3b006d7e2b8df2fc659b3e0305c741abd615bdca572d2b848fd43e8361
5. 0x240854290de924759abf5c1958b83a54e26cbb27695aa226f69fd17528b12ebf
6. 0x7186433e45cd589d23c1cf31494e40b4ae4f3dbe374b62d005d3a820bb2d9315
7. 0x2a43c55fbe558661a391f91c71f4c58baad075a67424b779dd2943d4ea3cd678
8. 0x82888893ce14d1a342c70f28758af094917b75c4e8aa67e1af03020ad5b1fd59
9. 0xce3fca3529ea4461114f5f2fd051ee5ed118fb7aae484b92d255447b7c2f5b62
10. 0x977224f7d925cbcf6128446a101a85111ab2d51cf8bc14781f2ec7ef837917b8
11. 0x83afa8fe3cc064d8448370921ed67d6d4b3967f53c7f58b39256c81a304a9a30
12. 0x8a2b27ce9e13b66cef6d1fa09c15a96f8e498f7102ac3524efaae6737b11d546
13. 0x45ba4607b58bd503d8501bd96a0477f9bb52f44b7e9c7927ec982f240f262131
14. 0x88002651b75eed5296ce4ff2e29616d59737fbfdbd4eb1747342b2df0368963a
15. 0x006ca23845a42a2d7f3ffca485568321f0deef0a65ff45709711a78f8e68aa0f
16. 0x68c6b9053bb76224fd0e15585b411d440e30609e5a4fb17301a7d24e9b177e60
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7