Evidence row 1501089

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Whether a date is a business day in a country (holiday/weekend/make-up workday aware), plus the previous and next business day. Price: $0.001 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO alpha-2",
            "type": "string"
          },
          "date": {
            "description": "YYYY-MM-DD",
            "type": "string"
          }
        },
        "required": [
          "country",
          "date"
        ],
        "type": "object"
      },
      "name": "business_day"
    },
    {
      "description": "Date that is N business days after (or before, if negative) a start date in a country. Typical use: T+2 settlement, SLA and filing deadlines. Price: $0.002 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO alpha-2",
            "type": "string"
          },
          "date": {
            "description": "Start date YYYY-MM-DD",
            "type": "string"
          },
          "days": {
            "description": "Integer -260..260",
            "type": "integer"
          }
        },
        "required": [
          "country",
          "date",
          "days"
        ],
        "type": "object"
      },
      "name": "business_days_add"
    },
    {
      "description": "Number of business days in [start, end] inclusive (max 3 years), with the holidays that fell on weekdays. Price: $0.002 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO alpha-2",
            "type": "string"
          },
          "end": {
            "description": "YYYY-MM-DD",
            "type": "string"
          },
          "start": {
            "description": "YYYY-MM-DD",
            "type": "string"
          }
        },
        "required": [
          "country",
          "start",
          "end"
        ],
        "type": "object"
      },
      "name": "business_days_count"
    },
    {
      "description": "All national public holidays for a country and year, with weekend definition and official weekend make-up workdays. Price: $0.002 USDC per request (fixed; one paid HTTP GET = one charge; x402 exact on Base or MPP on Tempo; 4xx errors are not charged).",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO alpha-2",
            "type": "string"
          },
          "year": {
            "description": "YYYY",
            "type": "integer"
          }
        },
        "required": [
          "country",
          "year"
        ],
        "type": "object"
      },
      "name": "holidays"
    }
  ]
}

What the leaf hashes

{"body":"c2a6f982e068205f24681a9ea6558898a07c8a1e5dbc5b232be82309be32a836","id":1501089,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793467761677812,"prev":566809,"subject":"494dcfa3-30e9-4d44-907c-a529e791b79f","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).

1. 0x213d4e4b118d7e4aaf96183d1a3f4efae667ef9a43bad152b22428264959357e
2. 0xabfdfd8c1be2578900c31d529e8c83312a0b9b00f19fb32978f6ea0da6dde9ac
3. 0xd021856551aee07f53e2e323cc1c1b550a416df8ed1d6dce75acac5ea6602023
4. 0x7367cb2abac7692d9c236d0fe3048592f2b9b510d09dded0f21616b395f4da9d
5. 0x542639ce9d3aa77310f5c2f1fe31867f5b4c185f06cb24eedbe74766e91179b6
6. 0x54cb53a10ae2a627c8888dfb5ff75358d6b3e52a53ab7d270dc171dca6e9a7dd
7. 0xbfa9fae42e0d28954eab557b85deab49bb5d77c1c254b907dd280b67b3e22b12
8. 0x21f9750768951e3ff6c5077c4f762d9696d7e2835f5a4ce6562a165c32ca3931
9. 0x74527a3dd12b6685c55ffe876ee5859cb1109c1ffa667f5e809e6459157a69a4
10. 0xdfc75f6ad0805718ac2aaa5df55464e47067ba1135bc4451d9b10c4303b1158d
11. 0x2e2ab6b1f0ff89ce832cc79b03cbe16dd8823853eb89e8b0111b690a0cee44f3
12. 0xdee9d4c5db2b58c8457e2475c51a4161cee21d7b37725c0297bef1bbee03ac5d
13. 0x8803bf75cab982672041776266568d6de6eae1009b05bc3ae84ccb6104d5f5f4
14. 0x9ceb0cca7e6a4252fd4bc9968554fbb343590c4ea20f4c2a07778fe411162b49
15. 0x95ec49fc7f2c7be30422eaa1d0d6036836dd63ff46a8ed4027258fcf3eb8cf24
16. 0x2bca4aa3c59fe9209016c64bd8b706423477e3407201a00165afde9abf6fee2b
17. 0x37f13582abb3c002d51c2f190c312129cbc3a39754618fee2c75c2441bb1eb94
18. 0x59f83f7228f07febe2780660e422e171b0359b8aa031ee3be07e991118130c15

Day root

0x24463725d1c0d9894bd6123691d532547aaa79f0762c0e45aa6a68acf1fd71ab

Chained

0x7d4824ff313dee7252a46f9d5c37b452851deb6c9f24a40c2f74ee0e53c82980

Published

On Arc Testnet, block 70093156: 0xedb7b832f4ebf6781b5ecd2ed241c435b862f4d3761541fa31adc1831b8c44a0