Evidence row 308464

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Estimate total US customs duty (all stacking layers), MPF/HMF and landed cost from a plain product description. No HTS code required. Returns official sources and as-of date.",
      "inputSchema": {
        "properties": {
          "arrival_mode": {
            "description": "ocean|air",
            "type": "string"
          },
          "broker_fee": {
            "type": "number"
          },
          "declared_value": {
            "type": "number"
          },
          "freight": {
            "type": "number"
          },
          "insurance": {
            "type": "number"
          },
          "origin_code": {
            "description": "CN|VN|IN|MX|US",
            "type": "string"
          },
          "product_description": {
            "type": "string"
          }
        },
        "required": [
          "product_description",
          "origin_code",
          "declared_value"
        ],
        "type": "object"
      },
      "name": "compute_tariff"
    },
    {
      "description": "List 2026 US tariff product categories, origin-country layers, MPF/HMF fees and notes.",
      "inputSchema": {
        "properties": {},
        "type": "object"
      },
      "name": "list_tariff_categories"
    }
  ]
}

What the leaf hashes

{"body":"f75e4b4def2e9c04a85936fdd8aab589935fabf69e64694e4e33ad47a278c8c7","id":308464,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793058284904833,"prev":null,"subject":"98e5c369-a0c2-42af-8001-45bb4b9cb0dd","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. 0xb9576434f696465f5f52da40ef3135c8e4a169e107db636eb8a9d2262196f416
2. 0x107a74fedcf0e2266cc545318724c1571d6c007cbabdbea691dd0ad2cd64d30e
3. 0xd9b693ff806334da60b40bee69ef3f4f8cf589cefb5106ed59a0df3c0a69184b
4. 0xc1885b0d0b0b8d6c2604f28d1307301c68337356ccdecd5be1cbd455804cf276
5. 0x5e770e3e9c96be5be22db3c635af172a6fc9c6417b4c61fbdf754f3db91c5f5e
6. 0x1eb2f6d8f9cfc7025cf6aa5531c70f475eb27d250dfd2f421468556f6d9fb47b
7. 0xf9ec9f00ccf997ee8fb002ea00eca6c32b2d37fd7521a65c0dae00aa36770935
8. 0x59b4646476c1a3abf5c23d89052bee16473fecbf0adf2ff56776bd857bbd4da1
9. 0x9bc815709ef4617796e520b1c2fe2f937d4fcee1ca427b494b0585f8683819ab
10. 0x2a5c6878834071db08774384e91dbce1a180bcb1f079fcc809e29d3efca761f5
11. 0xcf50b54d8921f0c22877e0b8d6b8393a1954218f000f7cac374e9f40a024f700
12. 0xb6efd79902cac6d5a402ebecb8069402f00961ab80cd71b4d647fbc686d975ec
13. 0x2f43fe2b2533a5f40c107c114e458e226102f5f8ae91f097e964345880e30928
14. 0xf692ce2b0a640ec9f75aa960e5fb1c2c7091a04e24881798735752c19014e519
15. 0x9f68b5e15459cb62b8c0cd4c124fa61c74147b4a5755a200fbecd21a581635d1
16. 0x123ec8bee20ddc55223eeef5a4f4d6c4b6416515adbb911c56759f5cde56e452
17. 0xd0651cb9bc8155eb52b5247d506e74b8a935057dc190ba52091702ac25ed3a40
18. 0x9a9024edb5069d88a324facb310a5ce8e495214bbaa968f077bede437390194f
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae