Evidence row 1775238

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/12nXba"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/e08ddeba-008c-4c9b-8b4e-aa59e8990e88/.well-known/agent-card.json"
    ]
  ],
  "name": "Niban",
  "owner_address": "0x66d06d2b3d9f05bde2bbc98a6e462237a416b066",
  "raw": {
    "agent_id": "10666",
    "agent_uri": "https://centralcity.ai/a/12nXba",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Niban 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/12nXba",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Niban",
      "registrations": [
        {
          "agentId": 10666,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/e08ddeba-008c-4c9b-8b4e-aa59e8990e88/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/12nXba",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793551228,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T16:42:37Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Niban 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/12nXba"
}

What the leaf hashes

{"body":"e7204e8ca7d8219c649524bf067bea28f9ef083ad9de56623aadbc2175a1856d","id":1775238,"kind":"listing","method":"sync.erc8004/1","observed_us":1793551357540598,"prev":null,"subject":"erc8004:5042:10666","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-01 (302406 rows).

1. 0x36a2ea2a25e2502dfe16d46cb6abfea9080a95eed7ac8837de7f513066a616b4
2. 0xb5ac7e722e69f837aa0d88038238c89ed65d0d9650254d8058ea59ddb1becc31
3. 0xcb495246cc4a96cccc040dbb8d82827222e1bc601a3a6cba3605920336482879
4. 0x377b739bec501d3bbb9a71372cf22740b16651a8b06f108d6acbef567d8f6978
5. 0xf93351617de55a5e63cbbd5b9e6bbcbce98f383ebfa4fbe520e4eab451feeb00
6. 0x552d74ea4137ee28e3c1cff708fda0fcbb4a566ffaa3785c78dd9bf6b188377d
7. 0xde89e56e7a2dc6011c8f4130ddd2089d46d8a13b155892383c6d59a6c0729b67
8. 0xd6d70a094edf04c2d089f09caddbf2839155615d02674cc3ad5a66ab858bc83a
9. 0xaf04d91899bfa2038d42b24eb98d18b18aed5cbe9e794ef2f907da5bafa13b5a
10. 0x8bf59669da96df7ebb663da4cebadd3568350e8f40560df46136005fc3f39a63
11. 0x78be4ca333c48c8b6091180a6970c2dbc0d854845f242ce303f9e6aa114e25c9
12. 0x430f2c8ba8ad43480fc5cafec26ef91c193fc91fac5d078625365e3b2ce1ff21
13. 0xdba48e0b270dc35a114639ac6d3ae9323f73a176da0f2cc0715e5a5b8f1d8059
14. 0x770f20a6b76206ceacb50b86f521e555bd27a1f27e7156c64591601c5b119595
15. 0x80b1e578d986f759ca01ea02c7a922e757a26a65318f9844ac72c5c1d4fe339e
16. 0xa856ad79e6f29a2b5516257f0d4817172cca11251fe2e7e8f3911b105fe2b622
17. 0x02b3554752e71a19b12d7a76dbff436e85387226ceec89fdebdcdaf0122c2932
18. 0x1973893697931b7512ae5dc1a3c92ef92f633ae3574dce9029a35b5e94d2d364
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90