Evidence row 2550342

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/XDAz4i"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/75c6610a-3f85-47a5-8004-9bcf66da307c/.well-known/agent-card.json"
    ]
  ],
  "name": "Tantan",
  "owner_address": "0x3627824ec2c76e648f62adc5c8be48d0280dfd20",
  "raw": {
    "agent_id": "168214",
    "agent_uri": "https://centralcity.ai/a/XDAz4i",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Tantan 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/XDAz4i",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Tantan",
      "registrations": [
        {
          "agentId": 168214,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/75c6610a-3f85-47a5-8004-9bcf66da307c/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/XDAz4i",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793692251,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-03T07:55:30Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Tantan 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/XDAz4i"
}

What the leaf hashes

{"body":"4ea42d2d36c1201c927b755a3b9a021573aebbe1bd6a97f78eef5fcbb701847d","id":2550342,"kind":"listing","method":"sync.erc8004/1","observed_us":1793692530222995,"prev":2550123,"subject":"erc8004:5042:168214","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. 0xca2f07aeb3b8f4b2033b58b3a39d1379a6289178ad8b138c28b4750f02da9fcf
2. 0xdd09ceed32231f3c7b8a0e41e4f8169bd24b7460b3a677189660e8c9270fec99
3. 0x515ef1717278a847f999a186e33aa8196b6e63cc874328da1bfb1423e465b5d1
4. 0x1983710e01120390032a6cc640715c417b46c165bd7f15438074e7f410a72965
5. 0x040985c31676fdd447213e3f2937ef0e3049eb0c88d641119155fe5f11dd86d5
6. 0xb83e6c8d0c679479e8301d33f4b14d57841b3ebf8729319a03556c823eb4d84e
7. 0x48e1c7baaa85d1cbe83806c559665a387602693a331ba1a6013fc816b59e7caf
8. 0x6993315cb52d80f8617a7b17fd05f8ee35abf8ce5f5c99b91e3e64ad7006195d
9. 0x50e3c725a3a687703e76e1855a63f2e6d6b46291488293219daacc6fd7ccd952
10. 0x6e58c1e31549691db22fb297c07537ad8aafc3e8c573bed4573b9e97f1e5203e
11. 0x276ac52dfe629a01fa85d7175d4f72e9ad9579586495b59fa70b477fb47cc78c
12. 0xdbb677931543240db31acc89fc1a9b53835dee388a4e4c67e756b443dfa01970
13. 0x33fc1351c38cd27bc6972d4d1d2c6baa7fb113346e29547df2fd38d8e6c92e40
14. 0x06f39b34e961f2ea2e8c7681b9a680b15d48774fc0534e19640f27b7f07640a9
15. 0x20b1beb78a0f066bfa1ffbab05695dfb2940fd2df005cdcab3ae2e82d26c01a9
16. 0x59b3a6fae1c920f45b1445649e93c8c7d68f3f69789b0df88522cdb15a28590b
17. 0x7075a090980aecb33e9c15c829cb40f5b44385b6d91a159042263db068126b87
18. 0xac5402954216dc6c7020a6405675c8fc3b0828c2ab02943d80de52677a2f1fc3
19. 0x85f3a27c16056a361d9ba33355a575ca7123f86de901b204c88953c4b8ea441a

Day root

0xb646ffa569e24bf8336b0a15a9d98d0a2f1239f58e10c2b18a9d22e43343566a

Chained

0x35e926359fd19031c6b5e08fb3b44f2524386a57c8fdd353336c185603f53d43

Published

On Arc Testnet, block 70601990: 0xa5f9dadba13cde129126b950e64b815e6833cb8ff53b75026c9dbe769c3768c7