Evidence row 292372

What was observed

{
  "count": 9,
  "tools": [
    {
      "description": "Add one fixed asset to the register and return its id with the rate, useful life and convention taken from the bundled tax table. Cost and residual are whole minor units. Free tier holds ten assets.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "category": {
            "description": "A code or name from the bundled table, e.g. \"487\" or \"Computers and computer sets\" (pl), \"main\" (uk), \"5-year\" (us). Read assets://categories for the list",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "cost_minor": {
            "description": "Acquisition cost in MINOR units (integer cents/grosze), e.g. 549900 for 5499.00. Never a decimal",
            "type": "integer"
          },
          "currency": {
            "description": "ISO code. Defaults to the shared business profile currency, else the scheme table currency",
            "pattern": "^[A-Za-z]{3}$",
            "type": "string"
          },
          "declining_coefficient": {
            "description": "Declining-balance coefficient. Polish default 2.0, capped by the table; ignored with straight-line",
            "type": "number"
          },
          "in_service_date": {
            "description": "ISO date YYYY-MM-DD the asset entered use and the register. Defaults to purchase_date",
            "maxLength": 10,
            "type": "string"
          },
          "life_years": {
            "description": "Override the useful life derived from the table, in years. The answer reports that it was an override",
            "type": "number"
          },
          "method": {
            "description": "\"straight-line\" or \"declining-balance\". Default: the table row method, straight-line for the Polish annex and the reducing-balance pool rate for the UK",
            "enum": [
              "straight-line",
              "declining-balance"
            ],
            "type": "string"
          },
          "name": {
            "description": "What the asset is, e.g. \"MacBook Pro 16\" or \"Delivery van\"",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "note": {
            "maxLength": 2000,
            "type": "string"
          },
          "project": {
            "description": "Project, department or cost centre this asset belongs to",
            "maxLength": 200,
            "type": "string"
          },
          "purchase_date": {
            "description": "ISO date YYYY-MM-DD the asset was bought",
            "maxLength": 10,
            "type": "string"
          },
          "rate_pct": {
            "description": "Override the annual percentage derived from the table. Use for a lowered Polish rate under art. 16i",
            "type": "number"
          },
          "residual_minor": {
            "description": "Residual or salvage value in MINOR units, default 0. Must be less than cost. MACRS ignores it and the answer says so",
            "type": "integer"
          },
          "scheme": {
            "description": "\"pl\" Polish KST annex rates, \"uk\" HMRC capital allowance pools, \"us\" IRS MACRS GDS. Omit to derive it from the shared business profile currency",
            "enum": [
              "pl",
              "uk",
              "us"
            ],
            "type": "string"
          }
        },
        "required": [
          "name",
          "category",
          "cost_minor",
          "purchase_date"
        ],
        "type": "object"
      },
      "name": "asset_add"
    },
    {
      "description": "Remove one asset from the register when nothing depends on it: not disposed of, never journaled. Its free-tier slot is free again. An asset with a dependent is refused and the dependent is named. Free.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "asset": {
            "description": "Asset id such as ASSET-2026-0001, or an exact or partial name",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "asset"
        ],
        "type": "object"
      },
      "name": "asset_delete"
    },
    {
      "description": "Record that an asset left the business on a date and return the gain or loss against net book value. proceeds_minor is in MINOR units. Depreciation stops here, and a second disposal is refused.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "asset": {
            "description": "Asset id such as ASSET-2026-0001, or an exact or partial name",
            "maxLength": 200,
            "minLength": 1,
            "type": "string"
          },
          "date": {
            "description": "ISO date YYYY-MM-DD the asset left the business. It cannot be before the in-service date",
            "maxLength": 10,
            "type": "string"
          },
          "note": {
            "description": "What happened, e.g. sold to a dealer, written off after a fire",
            "maxLength": 2000,
            "type": "string"
          },
          "proceeds_minor": {
            "description": "Sale proceeds in MINOR units, default 0 for a scrapping or a write-off",
            "type": "integer"
          }
        },
        "required": [
          "asset",
          "date"
        ],
        "type": "object"
      },
      "name": "asset_dispose"
    },
    {
      "description": "Return the depreciation journal for one month: debit depreciation expense and credit accumulated depreciation, per asset and in total, plus an expense_add-ready payload per currency. It writes no expense. Pro.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "accumulated_account": {
            "description": "Credit account name. Default \"Accumulated depreciation\"",
            "maxLength": 200,
            "type": "string"
          },
          "category": {
            "description": "Expense category to put on the expense_add payload. Default \"depreciation\"",
            "maxLength": 200,
            "type": "string"
          },
          "expense_account": {
            "description": "Debit account name. Default \"Depreciation expense\"",
            "maxLength": 200,
            "type": "string"
          },
          "month": {
            "description": "The month to journal, YYYY-MM. A date YYYY-MM-DD is read as its month",
            "maxLength": 10,
            "type": "string"
          },
          "project": {
            "description": "Only assets on this project or cost centre",
            "maxLength": 200,
            "type": "string"
          },
          "scheme": {
            "description": "Only assets on this tax scheme",
            "enum": [
              "pl",
              "uk",
              "us"
            ],
            "type": "string"
          }
        },
        "required": [
          "month"
        ],
        "type": "object"
      },
      "name": "asset_journal"
    },
    {
      "description": "List the assets in the register with cost, method, rate and net book value at a date, filtered by scheme, category, project, currency or disposal state. Free and unlimited.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "as_of": {
            "description": "Value the register at this month or date, YYYY-MM or YYYY-MM-DD. Default today",
            "maxLength": 10,
            "type": "string"
          },
          "category": {
            "description": "Only assets in this table category code or name",
            "maxLength": 200,
            "type": "string"
          },
          "currency": {
            "description": "Only assets held in this currency",
            "pattern": "^[A-Za-z]{3}$",
            "type": "string"
          },
          "include_disposed": {
            "description": "Include assets already disposed of. Default false",
            "type": "boolean"
          },
          "limit": {
            "description": "Maximum rows, default and ceiling 2000",
            "maximum": 2000,
            "minimum": 1,
            "type": "integer"
          },
          "project": {
            "description": "Only assets on this project or cost centre",
            "maxLength": 200,
            "type": "string"
          },
          "scheme": {
            "description": "Only assets on this tax scheme",
            "enum": [
              "pl",
              "uk",
              "us"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "asset_list"
    },
    {
      "description": "For one year: net book value by category, scheme and currency at as_of, the year's depreciation charge per currency, and every disposal with its gain or loss. Pro; asset_list and asset_schedule are free per-asset views.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "as_of": {
            "description": "Value the register at this month or date, YYYY-MM or YYYY-MM-DD. Default the last day of the year",
            "maxLength": 10,
            "type": "string"
          },
          "project": {
            "description": "Only assets on this project or cost centre",
            "maxLength": 200,
            "type": "string"
          },
          "scheme": {
            "description": "Only assets on this tax scheme",
            "enum": [
              "pl",
              "uk",
              "us"
            ],
            "type": "string"
          },
          "year": {
            "description": "Calendar year to report, e.g. 2026. Default the year of as_of, else this year",
            "type": "integer"
          }
        },
        "type": "object"
      },
      "name": "asset_report"
    },
    {
      "description": "Build the depreciation schedule for a stored asset, or price one not in the register, per year or per month, to residual or zero, with the table's rate, life and convention. Periods sum exactly to the base.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "asset": {
            "description": "Asset id such as ASSET-2026-0001, or an exact or partial name. Omit and pass the fields below to price an asset that is not in the register",
            "maxLength": 200,
            "type": "string"
          },
          "category": {
            "description": "Table category code or name, when pricing an asset that is not in the register",
            "maxLength": 200,
            "type": "string"
          },
          "cost_minor": {
            "description": "Cost in MINOR units, when pricing an asset that is not in the register",
            "type": "integer"
          },
          "currency": {
            "description": "ISO code, when pricing an asset that is not in the register",
            "pattern": "^[A-Za-z]{3}$",
            "type": "string"
          },
          "declining_coefficient": {
            "description": "Declining-balance coefficient; ignored with straight-line",
            "type": "number"
          },
          "granularity": {
            "description": "\"year\" for one row per period, \"month\" for the monthly charge. Default \"year\"",
            "enum": [
              "year",
              "month"
            ],
            "type": "string"
          },
          "in_service_date": {
            "description": "ISO date YYYY-MM-DD the asset entered use. Defaults to purchase_date",
            "maxLength": 10,
            "type": "string"
          },
          "life_years": {
            "description": "Override the useful life from the table, in years",
            "type": "number"
          },
          "method": {
            "description": "\"straight-line\" or \"declining-balance\"",
            "enum": [
              "straight-line",
              "declining-balance"
            ],
            "type": "string"
          },
          "purchase_date": {
            "description": "ISO date YYYY-MM-DD, when pricing an asset that is not in the register",
            "maxLength": 10,
            "type": "string"
          },
          "rate_pct": {
            "description": "Override the annual percentage from the table",
            "type": "number"
          },
          "residual_minor": {
            "description": "Residual in MINOR units, default 0",
            "type": "integer"
          },
          "scheme": {
            "description": "Scheme, when pricing an asset that is not in the register",
            "enum": [
              "pl",
              "uk",
              "us"
            ],
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "asset_schedule"
    },
    {
      "description": "Turn Pro on for this connection with key, an MCPL1.<payload>.<signature> issued at checkout for this server or the bundle. Data under your token stays; a wrong or expired key changes nothing. license_status confirms it.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "additionalProperties": false,
        "properties": {
          "key": {
            "description": "License key from checkout, MCPL1.<payload>.<signature>",
            "type": "string"
          }
        },
        "required": [
          "key"
        ],
        "type": "object"
      },
      "name": "license_activate"
    },
    {
      "description": "Report this endpoint's licence state for your token as JSON: the product, the tier free or pro, why it is not Pro, and the checkout URL. Call it to explain a free-tier refusal. No arguments, nothing changes.",
      "inputSchema": {
        "$schema": "http://json-schema.org/draft-07/schema#",
        "properties": {},
        "type": "object"
      },
      "name": "license_status"
    }
  ]
}

What the leaf hashes

{"body":"204c39a2c4810d288dd7841b593bc47b08edaec6e567de39c41468da3c7acbb3","id":292372,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793048738776413,"prev":null,"subject":"210b9996-4042-4b48-aa5b-ea7c71ff0ec0","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. 0x0a3160c98a8c21110768a39576e8e2d0b46b1c7b0ecfb04a412b050618cb04b5
2. 0xb219c07339c497ea9186d883ff500aa891102788fbc8cb4ea974fab2d889fe4b
3. 0xdf415ff74e8e3e6d002453a5bca3b828837413e3aef7160d0a42c8614b38ec5e
4. 0x87d0d690b5af4c8226af884deacbc6853b79466180dbf42a0a2115c56f5d1025
5. 0x03b3e3a736e4b52a99d5e97400a7c4ead4d2d3509014b4c662d6a7b17339504d
6. 0x4ef7fdfb836ea54b12c74f05eec8861251104cdfbc67221de4965c8362d362eb
7. 0x60b86f2a4298f707f140cbf8016ca9fc737d4c0e0b7623339cddc9d7104f82f0
8. 0xc8cce4ccfe25d5a5077983f73b288514abe105c9786080272d48f65d5364c404
9. 0xf88e097adda8b3df9e167ac9617b23b48d33f13fbfd85f031daeddd17d64feb0
10. 0xb0bc31ab556762b7fe858f7c949edb2e4e31297933ff02d4987fcbda94b38b0f
11. 0x87b542db74671bce07a9c7ffa1bac70164f2e2ab234b807975c3d56a1d6139ee
12. 0x9e12233d6ee4faeb9271b0fc3c834797517d702f44add023149f28a0809c0aaa
13. 0xe5a836cf25a8dfc72c9e3b6a69a7561a1f61f50f9cf36707d36f6e926aa15dec
14. 0xa96bb9408ce00a0d40ddaba8736257dfce76d5478b131d69db1afdf8a824312b
15. 0x7ddc2fead128357f881b63e6c7c26d7fbbb84fca6c7c8e0bbfe386de86ca8d39
16. 0xc6a4d7899a0f442958e26505011190b7cff2483611c1b94eba9043e0ba9ac36e
17. 0x8c756542e482157df0c36464d75c937b845e4423dbbcfad08f0cf8d5a16b9a13
18. 0x20704208aa6923d6b2450ef74ede87a6e0265d46447926038fe9506e9e154b2d
19. 0x9b9ce5b74b9bab5121612ef6b64920a8d453cbf311096a423eef9702747e868a

Day root

0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8

Chained

0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a

Published

On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae