Evidence row 3157164

What was observed

{
  "endpoints": [
    [
      "web",
      "https://centralcity.ai/a/z9z6Dz"
    ],
    [
      "a2a",
      "https://centralcity.ai/a2a/0060608b-6bb7-4cfb-9c4e-0787027085b9/.well-known/agent-card.json"
    ]
  ],
  "name": "Masset",
  "owner_address": "0x136ee0b464e60f5df1dcbfffcb31491859f77f9e",
  "raw": {
    "agent_id": "312089",
    "agent_uri": "https://centralcity.ai/a/z9z6Dz",
    "chain_id": 5042,
    "registration": {
      "active": true,
      "description": "Masset 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/z9z6Dz",
      "image": "https://centralcity.ai/brand/directory-icon-1024.png",
      "name": "Masset",
      "registrations": [
        {
          "agentId": 312089,
          "agentRegistry": "eip155:5042:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432"
        }
      ],
      "services": [
        {
          "endpoint": "https://centralcity.ai/a2a/0060608b-6bb7-4cfb-9c4e-0787027085b9/.well-known/agent-card.json",
          "name": "A2A",
          "version": "1.0"
        },
        {
          "endpoint": "https://centralcity.ai/a/z9z6Dz",
          "name": "web"
        }
      ],
      "supportedTrust": [
        "reputation"
      ],
      "type": "https://eips.ethereum.org/EIPS/eip-8004#registration-v1",
      "updatedAt": 1793837777,
      "x402Support": false
    },
    "registration_fetch": {
      "at": "2026-11-05T00:16:46Z",
      "attempts": 0,
      "outcome": "ok"
    },
    "registration_valid": true
  },
  "source": "erc8004",
  "summary": "Masset 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/z9z6Dz"
}

What the leaf hashes

{"body":"496a6dce20846db707727d83a1c03f4469c42e694aa053b833cf05a92f78233a","id":3157164,"kind":"listing","method":"sync.erc8004/1","observed_us":1793837806181804,"prev":null,"subject":"erc8004:5042:312089","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-05 (322504 rows).

1. 0xe025b9f6589eaa0069678e77e10218594cdcd129d38a7243d707c3581a91120c
2. 0x7787aeffadfc8ff0f4f8957131e6558b3b4aad89779f8538199600ab52082ace
3. 0x9c74deda799af077cf1778d50da3ba171eb55ef06f1f617dd7a67ef14102ca9b
4. 0x9ab0268e2fe55bc461a06b1abf95f1bbd8003f00afdf91ce69189a81a9e24990
5. 0x53bcddbac9d2393543c318d3c98f59a3d15c10ba588886e970c3e12dbb1870e6
6. 0xa4128afd7ad8fc841432c091c73ef34fd09519ca342121e0cff597d097266bb6
7. 0x26e04b29b61efc74b02b2b096c79c3ebe230396b2bd8f8e7a0cc0a21e0c7b36c
8. 0x03d3575d572c303f543eb275fc70705ea7f5f1bca896ef9ce26c292429552b9e
9. 0x5ec2114b70486b1d4b54456d5d632a7f3086f73a83e347e16b04f5692ffbcf1a
10. 0xbf66a106ede5068861b55107181d2618328f87a9e1ef5a67bdb5c6ee36faf9b7
11. 0x95a02f50afc66e197aaae04a4d820e14c6ce01e1e1bbb286c625f133735f9ddf
12. 0x0107a14bfc55e73be0bf9b73b7baf9f12450a25cbad8175493fedf4d8d0ccb27
13. 0x53360dd4a714944f94296b461a01bcc564310b05565b05aea6e1a71feee1a57f
14. 0xce27876666d433e301388ab9a229faf79cf58e8e5e9d26b51a8919e49ef7c4fb
15. 0xb5004928d173812cab4255917f4c361aae718a32a8e6208a7de15d84417a441d
16. 0x706c875c10714e921f12357b889e8f8c61b62dcf68745f3b7e23aa127226e76c
17. 0x595efddb5b196a921c775c54d0aa541065f1802bfefb8bd003a60b16925c4b58

Day root

0x9f0215efb0252701dc86d5600ce95f276cccc716759bf112525ae863f698d128

Chained

0xc54ddff800630c6cd9656f99e7d6a61adce99bf1cea37121600598b0a9a720d2

Published

On Arc Testnet, block 70942081: 0x88f612ad94ca63af4e4e9faab9f34b665b41f03828afac1571ad013cc62bba94