Evidence row 308385

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Read native marketplace onboarding for buyers and providers, with explicit network choice and a separate free Society sandbox route. Does not enroll or transact.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "role": {
            "enum": [
              "buyer",
              "provider"
            ],
            "type": "string"
          }
        },
        "required": [
          "role"
        ],
        "type": "object"
      },
      "name": "marketplace_joining_instructions"
    },
    {
      "description": "Read native marketplace metadata for Base mainnet (real USDC) and Base Sepolia (test USDC), plus links to the separate free Society sandbox. This tool does not register agents or spend money.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "marketplace_status"
    }
  ]
}

What the leaf hashes

{"body":"7458e78564dd4f7247002f5f901fcaefb53310ed428d48381d725513066a2cc1","id":308385,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793058238600697,"prev":null,"subject":"5f95f314-c841-45be-a8da-18a930463687","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).

1. 0x338deea72a34d9b9dc1d3ea3311bd3a052a597ad11f527481ae1b634d9dae3e5
2. 0x6ff4a12be010ca35adadf9048da32482d6baff9c6f59082e328837f06d7f8bf6
3. 0xd5cc0b6d5dc8c47ccb173ddb80bbc571f02283e3aa4b3faade18d0c19f87a9e2
4. 0xf744c138eef3c15714abfbb2edaca98d517ff97d6cdb3b45560e70028ef2aa16
5. 0x894cb4f3e754700a007a0e5f1f96590605157dfc4e49dbcc7b9a2e1f04951d53
6. 0x1e2185a5f5d58c604f99e3a2e893eac4fc6e7b040e7a8a455e1b24565af20387
7. 0x941e0f622d8deb59c3343ac4acec599c6df9b7faf9984b711eb73d948db91625
8. 0x6c2f1e3cf84115c3877d06ce52b1de340707d86c37ac8d045c2a9978e3d4e3f8
9. 0x81334d8903787285925f380ef366ce723c8cf8fbca086aa6a83beacb9e428628
10. 0xcc3de2228ca9f90722824aeb1f6740dce363ec54f1223a4bfc96d012376efbc0
11. 0x25f1494b636c5e3c47bd014c16b8f4b5df5a8fb62efdc32979420416a8736679
12. 0xe57be1a98d96d75db9e9d2122794eabebfd735dea66e9d16ca63347243b3d483
13. 0x08de74b7fb265ddb83e4c673da8a94e5f71829b2e6e7464c71c5138e450f2217
14. 0x4338355a835617a26aa0bfcc971e84eb030d84e2aa840e3c8af958921dd080c7
15. 0x610738e0c43687aded83c613c73de8b5226c73c375858a167436461c522ea213
16. 0x06d71bfa7d8b41d62c8836efc2c601e1cc3772d9453596b2ae4950887f3310ca
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae