Evidence row 572958

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Check whether a plan can be fulfilled right now for a given quantity, using the same gate the checkout runs. Returns available true/false; reason 'delisted' means the SKU left the catalog, 'unavailable' means it temporarily cannot be fulfilled.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "package_code": {
            "description": "The plan's package_code from search_plans.",
            "maxLength": 128,
            "minLength": 1,
            "type": "string"
          },
          "quantity": {
            "description": "Units to buy (default 1, max 10).",
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "package_code"
        ],
        "type": "object"
      },
      "name": "check_availability"
    },
    {
      "description": "Fetch full public details for a single purchasable plan by its package_code: coverage, data allowance, validity, retail price in USD cents. Errors with plan_not_found for unknown or unsellable codes.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "package_code": {
            "description": "The plan's package_code from search_plans.",
            "maxLength": 128,
            "minLength": 1,
            "type": "string"
          }
        },
        "required": [
          "package_code"
        ],
        "type": "object"
      },
      "name": "get_plan"
    },
    {
      "description": "Price an order (package_code, quantity, optional promo code) exactly as checkout would: returns subtotal, discount, and the final total in USD cents, plus the promo status. Purely informational — no order is created.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "package_code": {
            "description": "The plan's package_code from search_plans.",
            "maxLength": 128,
            "minLength": 1,
            "type": "string"
          },
          "promo_code": {
            "description": "Optional promo code to apply.",
            "maxLength": 64,
            "type": "string"
          },
          "quantity": {
            "description": "Units to buy (default 1, max 10).",
            "maximum": 10,
            "minimum": 1,
            "type": "integer"
          }
        },
        "required": [
          "package_code"
        ],
        "type": "object"
      },
      "name": "get_quote"
    },
    {
      "description": "Search the purchasable travel eSIM plan catalog. Filter by destination country, region, minimum data, minimum duration, and maximum price. Returns public plan details (prices in USD cents) sorted cheapest first, with offset pagination via next_offset.",
      "inputSchema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "additionalProperties": false,
        "properties": {
          "destination": {
            "description": "Country to cover: ISO-2 code (e.g. 'JP') or English name (e.g. 'Japan').",
            "maxLength": 64,
            "type": "string"
          },
          "limit": {
            "description": "Page size, 1-50 (default 20).",
            "maximum": 50,
            "minimum": 1,
            "type": "integer"
          },
          "max_price_cents": {
            "description": "Maximum retail price in USD cents.",
            "maximum": 9007199254740991,
            "minimum": 1,
            "type": "integer"
          },
          "min_data_bytes": {
            "description": "Minimum total data allowance in bytes (unlimited plans always match).",
            "maximum": 9007199254740991,
            "minimum": 0,
            "type": "integer"
          },
          "min_duration_days": {
            "description": "Minimum validity in days.",
            "maximum": 9007199254740991,
            "minimum": 1,
            "type": "integer"
          },
          "offset": {
            "description": "Pagination offset from a previous next_offset.",
            "maximum": 5000,
            "minimum": 0,
            "type": "integer"
          },
          "region": {
            "description": "Region name filter, e.g. 'Europe' or 'Asia'.",
            "maxLength": 64,
            "type": "string"
          }
        },
        "type": "object"
      },
      "name": "search_plans"
    }
  ]
}

What the leaf hashes

{"body":"302a8b0f4cf418dbb651e57ac719e485e8f073241513fa1ef32b02a2b3dae15e","id":572958,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793140914280565,"prev":null,"subject":"dc106a4b-1555-4aac-bd35-eee59eb6478e","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. 0x1057f995d38f44291c4adea29ccc5f6ffe4246cbec1ef63d02ff66c1ea3645bb
2. 0xb6e05607e3775fdfdc2012dd0cbccc140ac8e086c95309cef2158528417490b1
3. 0x87ab12eb4d8cbc6f1ac73ba83b6e511643ca9208833f9cc14d69ed048c826a01
4. 0xb1865fa6103724fbc518356058b6f90fba4e4c3bb5617a1c12e28d8f2a68394c
5. 0xe4eb20ca07f8301dda649c4d5073e17850d4f545020e634797cc8ec22a37f046
6. 0xfd090381c8c2df454a784d0c1c75fb93920f5ed96fbe69c1bdd83df95c5e5340
7. 0xf99128dc224346a786cb95b5dc98fab721653d3e777b3b7e3f21cacd516e0fed
8. 0xceab5d8367fa5f8fd5fbbe7cb06953ee6523b92127cf5f800728b4fe8244e2ff
9. 0xeb0533187344fac3f068dc7fa0f3d69d3d4a342327d7b8bfcc8558f1e664c09e
10. 0xe1615fecd4fa00bce6ae4a8c131c30bdffbd1f0af30622f2a9574bdc33b3b850
11. 0x8ac2fe99f9dd601ab64a254bbaed16deea227866f6b921e1bd7aaefef2e05b53
12. 0x0d3ea2b5e8eb21cf4cb25a0567ff70340d50d07631267f35ddfc7cd1de74eea5
13. 0xedf6ab3c3733ce137d888d3e5f7006ba77ab04b8f1fe576519f7b056959665ee
14. 0x52c5141da0cbee106a30396ee7d1360fd22f55084aca2ca436c8007892775670
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4