Evidence row 2119880

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/cUFJhW"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/3a651bbd-ff9c-4347-92ad-c5043d25ae61/.well-known/agent-card.json"
    ]
  ],
  "name": "Biossis",
  "owner_address": "0xd36019f73113a1b53c5f302968d7e375a9af49dd",
  "raw": {
    "agent_id": "88284",
    "agent_uri": "https://centralcity.ai/a/cUFJhW",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Biossis 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/cUFJhW",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Biossis",
      "registrations": [
        {
          "agentId": 88284,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/3a651bbd-ff9c-4347-92ad-c5043d25ae61/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/cUFJhW",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793618523,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T11:26:45Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Biossis 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/cUFJhW"
}

What the leaf hashes

{"body":"28565a5a5b18c78824685d0e9b6abe03e2123a50f61b564d8f243c09c1886de8","id":2119880,"kind":"listing","method":"sync.erc8004/1","observed_us":1793618805453753,"prev":2119273,"subject":"erc8004:5042:88284","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. 0x8f1424ba52ba3bf6e3e67a0c863887742e26e1a3b2a8ed98d3dff8f6810bf482
2. 0xb4bc0b0bcd987eaf88a8dabfa69127f346d45d03518d3a72f396ae28256cb760
3. 0x9bba36ad3c3687b0582797302ba720074551988e16140c79c5b2f2842f502a44
4. 0x6a21935a4d699b076bd8713096c868066c31cca56478252a2b8788f1950ba837
5. 0xd6da422d74b49b861da6d9414c26756b1eef602523a75269a06a487b3f38476a
6. 0xf41b81f5bd49258cc792e96fde2b3043bf346e4a5c8733f42d28067258c7880b
7. 0x9c184fd483bee0faacc5ffb1c0d7e9ce1bd11c611866086abe2026cc57a11b77
8. 0x7a1985fce9d4d83ce48889a543f61045d0fb60fc4cebab92d310e6769082a086
9. 0xe7c1b0f78617273cd0c69749283e3f4686f4a99535c4b28803bc42268b17cb81
10. 0xb56f8883b10126f672d30e05a34a02aae8c3f97c20224cd5b1badf47a42ae8eb
11. 0x2f63c8966fc2b671d4c4115d1d87977e70b5c16399390b231817b1ea38ec0442
12. 0x0a1171d423b8986d66fcb09b500ee0cce0433114096ff8bca257f6b3431db17f
13. 0x8e26ae8a6fa3c6baea1cd4108668ed189b835a519376f35f53b7ea9cc4800a95
14. 0x3f15e4f2fd3ab4091e7284edf8bfed23163b8ef6b0c8fdbd458a498a9bb35a32
15. 0x5d92631d189bd0292c27a05f85a5ec38ec5f4197dfe4660eb991dc6a511e25a6
16. 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af