Evidence row 545572

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Use this when the user needs a date N working days from another date: delivery and shipping estimates, payment or settlement terms, notice periods, SLA and deadline questions. Skips weekends and the public holidays of the country or region, reports exactly which days were skipped, and flags any date in the range that independent sources disagree about.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO 3166-1 alpha-2 country code, for example AU, US, GB.",
            "type": "string"
          },
          "days": {
            "description": "Business days to move. Positive counts forward, negative counts backward. Maximum magnitude 1000.",
            "type": "integer"
          },
          "region": {
            "description": "Optional ISO 3166-2 subdivision code such as AU-NSW or US-CA.",
            "type": "string"
          },
          "start_date": {
            "description": "The starting date in YYYY-MM-DD format. It is not counted itself.",
            "type": "string"
          }
        },
        "required": [
          "start_date",
          "days",
          "country"
        ],
        "type": "object"
      },
      "name": "add_business_days"
    },
    {
      "description": "Use this when the user asks whether one specific date is a working day, a public holiday, or whether businesses and banks are open. Names the holiday if there is one, and reports whether independent holiday sources agree on that date.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO 3166-1 alpha-2 country code, for example AU, US, GB.",
            "type": "string"
          },
          "date": {
            "description": "The date to check, in YYYY-MM-DD format.",
            "type": "string"
          },
          "region": {
            "description": "Optional ISO 3166-2 subdivision code such as AU-NSW or US-CA.",
            "type": "string"
          }
        },
        "required": [
          "date",
          "country"
        ],
        "type": "object"
      },
      "name": "check_business_day"
    },
    {
      "description": "Use this when accuracy matters more than speed, or when the user questions whether a holiday date is right: contracts, payroll, settlement, compliance deadlines. Compares the national holiday list for a country and year across three independent providers and reports exactly where they agree and disagree, rather than picking one.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO 3166-1 alpha-2 country code, for example AU, US, GB.",
            "type": "string"
          },
          "year": {
            "description": "Calendar year between 1975 and 2075.",
            "type": "integer"
          }
        },
        "required": [
          "country",
          "year"
        ],
        "type": "object"
      },
      "name": "cross_check_holidays"
    },
    {
      "description": "Use this when the user asks what the public holidays are in a country or region for a given year, when a particular holiday falls, or how many holidays a year has. Covers 200+ countries with state and province detail. Do not use it for working-day arithmetic; use add_business_days for that.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "country": {
            "description": "ISO 3166-1 alpha-2 country code, for example AU, US, GB, NZ, DE.",
            "type": "string"
          },
          "region": {
            "description": "Optional ISO 3166-2 subdivision code such as AU-NSW or US-CA. Supply it whenever the user names a state or province, otherwise only nationwide holidays are returned.",
            "type": "string"
          },
          "year": {
            "description": "Calendar year between 1975 and 2075.",
            "type": "integer"
          }
        },
        "required": [
          "country",
          "year"
        ],
        "type": "object"
      },
      "name": "list_public_holidays"
    }
  ]
}

What the leaf hashes

{"body":"96549f17f43be4bab7d86ede71cc01f23ba8496ea6543e23b5c58088c4998317","id":545572,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793132546517324,"prev":null,"subject":"f47fe76a-9149-44a0-8ec8-2f1134807a0e","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. 0x5dbfabcdfa2d1568b0a862e5f108d3ef8d9506672f0292c5ab40b75ee133d709
2. 0x85228f0b87e9c9a09ab68977e2dbd79ca1fd13dd7975013aeaeea007e9287db9
3. 0x22019f9c5d04eab23766780698149e45cabf58d8fb74479bcae5232749286ab9
4. 0xbb4018c966a8f85b70119639a1c04da597477c2da0c4f8deffa993b88ee445f1
5. 0x7ca6e659d0cc4e9431a687769d87f0bbcd9f3172141d10891271de2ad35108d8
6. 0xa81c0f802a7de81196d1b67100f1bf08cf64e59dda046cbf6784313f3fd92724
7. 0xd17d0c5bbd0564c3f82bf0fcc3da85c5054a9add3e338a252e750401126b6360
8. 0xb62bdd76cf7b1d68026d4e137ceed6f14ac56e4c06c221b2ff4af54ffbf378df
9. 0xe15ea49c334ab6cdd0cb0e87e0c0c7c88f1648e2e8c31443ba890fc4e1529fe6
10. 0x30db4ea8584fb766bec301357e718a2b18fcc9bc541dc98df39fe74211728260
11. 0x6a8800f5c72539b8ecaf35e93ccea9609b976b2b3da75c06b7295d8e7d5f176e
12. 0x548136c1e3ccb412bb6e8b0e92df8bd9db651531331fa2a46332b9c2956172f5
13. 0xeaf6b21867367f85a965f982b6593c42eafe4fdf74e94b675523a6478de49a54
14. 0x4277e02be0b5d91d78bc2247e37d402572474ba896c2e8f45765c8dc4e244d36
15. 0x6f00f0da417f4126951ba8ba9b7962c847e91f5c61364ad9ad47e5f979698a60
16. 0x23cf9bb4337ee8be7fcae368fd69d24c62c11fb45882127b4cd919bb96a19996
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4