Evidence row 522955

What was observed

{
  "count": 8,
  "tools": [
    {
      "description": "Search the official U.S. Census Bureau Schedule B (10-digit export classification used to file Electronic Export Information) by product words or by code prefix. Returns up to 50 codes with their official description and a link to each code's page (unit of quantity, when EEI is required, HS code used abroad, top U.S. export markets).",
      "inputSchema": {
        "properties": {
          "query": {
            "description": "Product words (e.g. \"frozen shrimp\") or a Schedule B code prefix (e.g. \"8703.23\").",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "find_schedule_b"
    },
    {
      "description": "Search the Fromerica directory of U.S. manufacturers and exporters by product. If no company is listed yet, returns the link where an importer can post a free request for quote that is shown to matching U.S. suppliers. Companies on the paid Pro plan are listed first and marked paid_placement=true.",
      "inputSchema": {
        "properties": {
          "product": {
            "description": "Product the buyer is looking for, e.g. \"tractor parts\".",
            "type": "string"
          }
        },
        "required": [
          "product"
        ],
        "type": "object"
      },
      "name": "find_us_exporters"
    },
    {
      "description": "Official U.S. Census Bureau statistics for one product at the HS 4-digit level: total U.S. exports, the top destination countries with year-to-date change, and the states that ship the most.",
      "inputSchema": {
        "properties": {
          "hs4": {
            "description": "HS 4-digit heading, e.g. \"1201\" (soybeans) or \"8471\".",
            "type": "string"
          }
        },
        "required": [
          "hs4"
        ],
        "type": "object"
      },
      "name": "get_us_export_markets"
    },
    {
      "description": "Official U.S. Census Bureau export statistics for one U.S. state or territory (origin of movement): total exports for the last full year and year to date, rank among states, and the top destination countries and products.",
      "inputSchema": {
        "properties": {
          "state": {
            "description": "Two-letter state code (e.g. \"TX\") or state name (e.g. \"Texas\").",
            "type": "string"
          }
        },
        "required": [
          "state"
        ],
        "type": "object"
      },
      "name": "get_us_exports_by_state"
    },
    {
      "description": "Get the official U.S. import duty rates for one HTS code (general, special and column 2), its description path, the date it was last checked against the official schedule, notes for chapter 99 provisions (additional duties, expired temporary reductions), and U.S. export figures for the product when available.",
      "inputSchema": {
        "properties": {
          "hts_code": {
            "description": "HTS code with dots, e.g. \"8504.31.20.00\" or \"9903.88.03\".",
            "type": "string"
          }
        },
        "required": [
          "hts_code"
        ],
        "type": "object"
      },
      "name": "get_us_tariff"
    },
    {
      "description": "Check a company or person name against the U.S. Consolidated Screening List (Commerce, State and Treasury: OFAC SDN, BIS Entity List and others), refreshed daily. Returns possible matches with their source list and match strength. A match is not a legal determination, and no match does not mean the party is cleared.",
      "inputSchema": {
        "properties": {
          "name": {
            "description": "Company or person name to check.",
            "type": "string"
          }
        },
        "required": [
          "name"
        ],
        "type": "object"
      },
      "name": "screen_restricted_party"
    },
    {
      "description": "Search the official U.S. Harmonized Tariff Schedule (USITC, refreshed daily) by product words or by an HTS code prefix. Returns up to 20 tariff lines with their general, special and column 2 duty rates and a link to each code's page on Fromerica.",
      "inputSchema": {
        "properties": {
          "query": {
            "description": "Product words (e.g. \"solar panels\") or an HTS code prefix (e.g. \"8541\" or \"9903.88\").",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "search_us_tariffs"
    },
    {
      "description": "Check whether a company appears on the Federal Maritime Commission's list of licensed and bonded Ocean Transportation Intermediaries (ocean freight forwarders and NVOCCs), by company name or license number. Returns license number, type, location and renewal date.",
      "inputSchema": {
        "properties": {
          "query": {
            "description": "Company name (e.g. \"Young Sea Cargo\") or FMC license number.",
            "type": "string"
          }
        },
        "required": [
          "query"
        ],
        "type": "object"
      },
      "name": "verify_fmc_license"
    }
  ]
}

What the leaf hashes

{"body":"118d1fddaefae845dae6dd26fe329999a5cfc71e25481415f2a7d30e767765b1","id":522955,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793124054215234,"prev":null,"subject":"fc3f4933-7a18-45ba-82eb-7a60b4485fd5","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-27 (273461 rows).

1. 0x301d58b646bd6ca35a6134a086bf1146fd2a9f1712b316e9f8d45bbf322f36c6
2. 0x8ae2144936643e464875d496924204d2a8d5efb63d8feb7464127df539117c43
3. 0x7bbd4a63dcc42ce03fe731a3a7a9a6eba98694d0dc415ded832f67117defa041
4. 0x0e5459a4c4d768347d4c8bf09f6c1b60679ed8d068b1c3ed82d62a8a363d84d3
5. 0x7964f784ab8a5d20cebd83e66073d6aab6a5538dfe731d9f000325ca3db5e2f0
6. 0x40e768dd4786233ee892e11185aeababf3b35ab4df929f174b3fdb342c1427a9
7. 0x14f87f030c83e116a0333024732f706996c53c0044b0f0ffc9b5a91dbfabfc92
8. 0x1a9841de9505b1f79a288c59b96c6c497eb8678491d1657f024eccfb5af15dcf
9. 0xc022806d0df789d1d916aed6e1f0c6c524334f13d24f86e72284ce6877dc8bc1
10. 0x66aee0bbd2f9413f09127b3136f2c3f301609f82502a42d17636a7cd8d77199a
11. 0x20bfebc9be09c8d1bd071c02e953c031252540d9fc909484016645ed1412efc4
12. 0x2d9c2517fb6dcdc0ce42dd3a93f7e33064509cbed0a9132fb1209ec8f33ef0ab
13. 0x2a25cd9926d8f2ef4726fd2a80f77b1ca202b6c3ca56aeb2f520555c93efd434
14. 0x595de2dea3b8fa56dbd6142dd78ae79f3e7169c631e41a844b100613abb3e430
15. 0x8360ee1105e4d9f9312067cbbfd47c69c5948665ae582b9684a580c8f4e199e1
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4