Evidence row 1540715

Observed 31 Oct 2026, 22:10 UTC, by probe.mcp/1.

Kind: mcp.tools
About: endpoint 5b9ac149-21c1-47fa-b031-2f8a4e07b20b
Recorded: 31 Oct 2026, 22:10 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 9f054cc77e896b14a81b0b9a8a9181ad8cca80278df2832de44048ba4b8642e4
Leaf: 0x212cbbbce30436d42b96a5b07e2d553e5a35682444a82512095c5c0c3f50f785

What was observed

{
  "count": 6,
  "tools": [
    {
      "description": "Delivered green diesel (marked gas oil) or road diesel prices per litre for 500 and 1,000 litres from Irish oil suppliers that publish them, with the typical and lowest price, weekly medians and a link for businesses to get quotes. HVO prices are not published online in Ireland.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "fuel": {
            "description": "GREEN_DIESEL is marked gas oil for farms, plant and heating; ROAD_DIESEL is diesel for road vehicles.",
            "enum": [
              "GREEN_DIESEL",
              "ROAD_DIESEL"
            ],
            "type": "string"
          }
        },
        "required": [
          "fuel"
        ],
        "type": "object"
      },
      "name": "tankful_business_fuel_prices"
    },
    {
      "description": "Read the published kerosene county reference guide for 300, 500 or 1000 litres, with observation date and confidence. May be unavailable. Not a supplier quote or bookable offer.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "county": {
            "description": "Republic of Ireland county; do not provide an address or Eircode.",
            "enum": [
              "Carlow",
              "Cavan",
              "Clare",
              "Cork",
              "Donegal",
              "Dublin",
              "Galway",
              "Kerry",
              "Kildare",
              "Kilkenny",
              "Laois",
              "Leitrim",
              "Limerick",
              "Longford",
              "Louth",
              "Mayo",
              "Meath",
              "Monaghan",
              "Offaly",
              "Roscommon",
              "Sligo",
              "Tipperary",
              "Waterford",
              "Westmeath",
              "Wexford",
              "Wicklow"
            ],
            "type": "string"
          },
          "fuel": {
            "const": "KEROSENE",
            "default": "KEROSENE",
            "type": "string"
          },
          "litres": {
            "anyOf": [
              {
                "const": 300,
                "type": "number"
              },
              {
                "const": 500,
                "type": "number"
              },
              {
                "const": 1000,
                "type": "number"
              }
            ]
          }
        },
        "required": [
          "county",
          "litres"
        ],
        "type": "object"
      },
      "name": "tankful_county_price_guide"
    },
    {
      "description": "Prepare county, fuel, 300–5000 whole litres and timing preferences, then continue on Tankful. Does not send to anyone, create a persisted request, order, reserve, take payment or collect personal details.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "county": {
            "description": "Republic of Ireland county; do not provide an address or Eircode.",
            "enum": [
              "Carlow",
              "Cavan",
              "Clare",
              "Cork",
              "Donegal",
              "Dublin",
              "Galway",
              "Kerry",
              "Kildare",
              "Kilkenny",
              "Laois",
              "Leitrim",
              "Limerick",
              "Longford",
              "Louth",
              "Mayo",
              "Meath",
              "Monaghan",
              "Offaly",
              "Roscommon",
              "Sligo",
              "Tipperary",
              "Waterford",
              "Westmeath",
              "Wexford",
              "Wicklow"
            ],
            "type": "string"
          },
          "fuel": {
            "default": "KEROSENE",
            "enum": [
              "KEROSENE",
              "GAS_OIL",
              "HVO"
            ],
            "type": "string"
          },
          "litres": {
            "maximum": 5000,
            "minimum": 300,
            "type": "integer"
          },
          "urgency": {
            "default": "THIS_WEEK",
            "enum": [
              "ASAP",
              "THIS_WEEK",
              "FLEXIBLE"
            ],
            "type": "string"
          }
        },
        "required": [
          "county",
          "litres"
        ],
        "type": "object"
      },
      "name": "tankful_delivery_request_draft"
    },
    {
      "description": "List up to five public oil suppliers for a Republic of Ireland county and fuel. Distinguishes confirmed coverage from directory coverage. No live stock, prices, delivery promises or contact is requested.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "county": {
            "description": "Republic of Ireland county; do not provide an address or Eircode.",
            "enum": [
              "Carlow",
              "Cavan",
              "Clare",
              "Cork",
              "Donegal",
              "Dublin",
              "Galway",
              "Kerry",
              "Kildare",
              "Kilkenny",
              "Laois",
              "Leitrim",
              "Limerick",
              "Longford",
              "Louth",
              "Mayo",
              "Meath",
              "Monaghan",
              "Offaly",
              "Roscommon",
              "Sligo",
              "Tipperary",
              "Waterford",
              "Westmeath",
              "Wexford",
              "Wicklow"
            ],
            "type": "string"
          },
          "fuel": {
            "default": "KEROSENE",
            "enum": [
              "KEROSENE",
              "GAS_OIL",
              "HVO"
            ],
            "type": "string"
          }
        },
        "required": [
          "county"
        ],
        "type": "object"
      },
      "name": "tankful_find_suppliers"
    },
    {
      "description": "The signed-in Tankful customer's 10 most recent heating oil orders: litres, oil supplier, status, price, delivery window and delivered litres. Needs the customer to connect their Tankful account (orders:read). Read-only.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "tankful_my_orders"
    },
    {
      "description": "Every county's lowest current published price for 500 litres of kerosene (home heating oil), with the average, cheapest and dearest county and a page to cite. Reference prices, not quotes.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {},
        "type": "object"
      },
      "name": "tankful_national_prices"
    }
  ]
}

What the leaf hashes

{"body":"9f054cc77e896b14a81b0b9a8a9181ad8cca80278df2832de44048ba4b8642e4","id":1540715,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793484659188006,"prev":null,"subject":"5b9ac149-21c1-47fa-b031-2f8a4e07b20b","subject_kind":"endpoint"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-31 (246033 rows).
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Day root: 0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab
Chained: 0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980
Published: On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0

How to check it · This row as JSON