Evidence row 1772597

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/vvpZqL"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/e437f98e-e2f8-4501-95d1-760992a87588/.well-known/agent-card.json"
    ]
  ],
  "name": "Massis",
  "owner_address": "0x350cacd417e8ee75a07ee4ff315f0f51279af5ec",
  "raw": {
    "agent_id": "8503",
    "agent_uri": "https://centralcity.ai/a/vvpZqL",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Massis 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/vvpZqL",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Massis",
      "registrations": [
        {
          "agentId": 8503,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/e437f98e-e2f8-4501-95d1-760992a87588/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/vvpZqL",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793548595,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-01T15:58:47Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Massis 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/vvpZqL"
}

What the leaf hashes

{"body":"a76f92fcd3dc92271f8a070ca63963f658c7fa1c892951354c62d09403c2fa07","id":1772597,"kind":"listing","method":"sync.erc8004/1","observed_us":1793548727895896,"prev":null,"subject":"erc8004:5042:8503","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. 0xbfd742643fcb922c6d674721b7f4e94ada6c51bac7bf905b65559ae1f9cf6255
2. 0x9319edad4efd5c26faf7b8ae33c208308a663e4d5c39031d89b74380938da1ff
3. 0x512562af04bea9a6f9bb1fe17cb0ad1bfc2928d18a00101c9ed0ea0fb57a3491
4. 0xb88489af856b58d586be1c208fc2394576319a25985488dd7c19947ea503350e
5. 0xf8bc0942272df406cdfbf11d513a134394417cc76aa2ed6355e7a61699a0d58e
6. 0xd80400ea6e71159bca7b83c406a01a3414ff0f6c4ff1617a03d3e5894514c133
7. 0xd2238b2deef9df343c80364bff9750cb7f33ee61d465d914ba9b1c7914ce78ec
8. 0xe13fb32e837327201f734c1fe0c010980f7818ad3db54110cd32193ebc4dab33
9. 0xe6bb8bd5e1eefbfbc636d38a9bf4c135ec05192de0f1c22402b060499bee0413
10. 0x533d4bf107d36d038160a8846b4b0f9d6669beebf13d6d185dacd3f611e8119c
11. 0xc53650545f91eb2ab7e91f46664ba1b751a1c0926985877edc3749ea0c79a803
12. 0x9b5cd4fa96d6d0487b926b9322bd8aa013529868f6e0eb6ee77b66e4c965e7ba
13. 0xefe564ec44d50e51cc27963590ca317b9c3510aaf30351f2e937c01c07c486de
14. 0x0c6f1e059ed2de7638825ab03396dd843c97d2de1abde6928871cfc5ef085a33
15. 0xf6217f3e2344dd9bf8c6e296c4729fbf7611d258b93c45e1bbe5f62e65e8e714
16. 0x8339aa87501c4d4f8b38a13e480a7c563957e09fb5711bed7cf189d6787f960d
17. 0xb5916fb7a3e87dc0702e46eeadcd22652e2e1e755f8d429cc7a14a67a350b51b
18. 0x6142ac48fda269c17791c79da99c2456ac6acfe98268f4d168a404fd6040c703
19. 0x3315fd2757fdd435852cc277377234a3f3909a6d2a089d0e36f6d59aacfda910

Day root

0x7fa2cba1cf3d6b35630896f5fe1a650adb307ea2c376e80a5f2d9276b7cb5ab3

Chained

0x577ff89ba012beeff3197bcff7fa86752074bdf54205a24359cc437be2a952a4

Published

On Arc Testnet, block 70262758: 0x435bc1b9331471d72e1998f2e420983b5189d4da65ffbd6f27ef40daf5e1ea90