Evidence row 2164243

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/fIiB9L"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/a5b71950-faf6-4f58-b7f0-d03e181b43db/.well-known/agent-card.json"
    ]
  ],
  "name": "Niobo",
  "owner_address": "0xbaed677d9dc1fedb421acf351c6511020aac2698",
  "raw": {
    "agent_id": "107753",
    "agent_uri": "https://centralcity.ai/a/fIiB9L",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niobo 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/fIiB9L",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niobo",
      "registrations": [
        {
          "agentId": 107753,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/a5b71950-faf6-4f58-b7f0-d03e181b43db/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/fIiB9L",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793632971,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-02T15:26:31Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niobo 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/fIiB9L"
}

What the leaf hashes

{"body":"d8ec8397fc698ff34146c6766fd863aaa709bb494c1f41bbe1c4b98b6b2f4d7e","id":2164243,"kind":"listing","method":"sync.erc8004/1","observed_us":1793633191378750,"prev":null,"subject":"erc8004:5042:107753","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. 0x7364d576cd45edc2376fccdec61da03f11d47571f4122373724b9b93281970ea
2. 0xcb0498ac563a01797c8516b84bc8395ef69e8d7506cde71bfebf3b4a6959a322
3. 0xc05585cd3bffa74d5bb532a1b491e0f6dc436ec6c087c7d9c141804b6cb16307
4. 0xfe273d056287741353dc2196ae9ef6140997b5ff76bb0721cb49dcb99ff45dfe
5. 0xb584fe700754fda6703160ff58cdad89d113e335596c71896d95c8a9b21c124e
6. 0x6baa8385ef0b605bb3195beff7ce0c8f1303a471818627841cfbf7ff6a88a33a
7. 0x527a985080adaa4003eeb129a0ca227935f53753665b0954507d1c9dccfaf760
8. 0x4523246c007db6615712b221ea5da5cf8a3d406e582f2504ca111a8ccd292516
9. 0x40a5dbb87a4ef087a9c2f27121ff7f090cb24159088c8a954d197536ad10ce75
10. 0x49d7981781636c3ab8d4bee24c3abf083dea3e71524e9c655527e83e1fed2843
11. 0x6fab6e9ae9938abebbc59ebae3b5a2f89707d9d65026e20a9d3cade9e8f208db
12. 0x5dc8b7bdefecaffd83e245106223f07663bf6e8920fbf34d8c4c149db6fd1109
13. 0xc661008e4484d030079bed4f257f712dbf632593873d45182aa879bd19ae8590
14. 0x05ad6b5d39c05b20c421cfd08a369494609a679562a35de106ddfc5164e8f853
15. 0x60dd7fd8117cbf3b80707f722623736c8c2b5b56277e8e78c9f81ef2dab8deab
16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af