Evidence row 556599

What was observed

{
  "count": 2,
  "tools": [
    {
      "description": "Calculates fabric shrinkage (or growth) from a swatch measured before and after washing and drying: length change along the selvedge, width change across the fabric, and the change in area. Use the same marked distances before and after, in one unit (cm or inches). Positive percentages are shrinkage, negative are growth.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "length_after": {
            "description": "The same marked length after washing and drying.",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "length_before": {
            "description": "Marked length before washing (along the selvedge), greater than 0.",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "unit": {
            "description": "Unit of the four measurements (only used to label the answer). Default cm.",
            "enum": [
              "cm",
              "in"
            ],
            "type": "string"
          },
          "width_after": {
            "description": "The same marked width after washing and drying.",
            "exclusiveMinimum": 0,
            "type": "number"
          },
          "width_before": {
            "description": "Marked width before washing (across the fabric), greater than 0.",
            "exclusiveMinimum": 0,
            "type": "number"
          }
        },
        "required": [
          "length_before",
          "length_after",
          "width_before",
          "width_after"
        ],
        "type": "object"
      },
      "name": "measure_fabric_shrinkage"
    },
    {
      "description": "Works out how much fabric to buy before washing so that the usable length needed remains afterwards: required length = (usable length + extra) ÷ (1 − lengthwise shrinkage), then rounded up to the shop’s selling increment. Works in metres or yards (any one unit). A negative shrinkage rate means growth.",
      "inputSchema": {
        "additionalProperties": false,
        "properties": {
          "extra_length": {
            "description": "Optional extra usable length after washing (default 0). Do not count an allowance the pattern already includes.",
            "minimum": 0,
            "type": "number"
          },
          "shop_increment": {
            "description": "The shop’s selling increment to round up to, e.g. 0.25 for quarter metres or 0.125 for eighth yards. 0 for no rounding (default 0).",
            "minimum": 0,
            "type": "number"
          },
          "shrinkage_percent": {
            "description": "Measured lengthwise shrinkage in percent, e.g. 5 for 5%. Negative means growth.",
            "exclusiveMaximum": 100,
            "minimum": -100,
            "type": "number"
          },
          "unit": {
            "description": "Unit of the lengths (only used to label the answer). Default m.",
            "enum": [
              "m",
              "yd"
            ],
            "type": "string"
          },
          "usable_length": {
            "description": "Length needed after washing (check the pattern layout), greater than 0.",
            "exclusiveMinimum": 0,
            "type": "number"
          }
        },
        "required": [
          "usable_length",
          "shrinkage_percent"
        ],
        "type": "object"
      },
      "name": "plan_fabric_length"
    }
  ]
}

What the leaf hashes

{"body":"675d268aeaf1d136e04252c6b7c15879179632f59bb99b4400532b06d6590904","id":556599,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793133938259530,"prev":null,"subject":"5fb50a72-a32e-4fe7-8949-6c9f586229c8","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. 0x196db7f78919fcc9c3cbb71d56d5cab62dcf566722084d8df12d83b08c2db695
2. 0xd4fd7b79b6ceebb322c7abac43f90817e42b178c686f31d6c8dcf99f43729517
3. 0x80e5e9c1047b67c33d44140630e5176c05c25391c77f4a5e630752b9797d82d9
4. 0xf0b5a10ddd1979844a6554a94367858a6dcef79cfdf24f3ef3dcfe2ca03d4113
5. 0x536edaf275fad4eac0d47b6da6304b5ae39c4f592c3e46639c91c7a4e81e205c
6. 0xe97cc74ab5d3231ee7c33c8e4fb1f96f30e6ef9aed661326525766e8ddf50e08
7. 0xd65af54a75e47151a2d7459670d49418e4401aacdf20d36bc706cf1ca27e90bb
8. 0xe133646db89077b8e0ab75fc24ed44b8267f96255fcdce7a71c360d2b4125314
9. 0x28a905321da8351299be26b660c3d8bb57501ce43cb7376b609eebbe3ba5a7d1
10. 0x92ad4d25cf40a90a064b6296c16b622df60247955858f9880c77f181288069c4
11. 0xee7752a111eb14027f818d33fc8806527d41f25841a61d0dfd8ec487e0c8660b
12. 0x864874d7fe156494acebcd974fb0ea64b6d7d6ef442b90a07ce8adbc57f7d75b
13. 0xca0b37bb3b043ccf0f24c50fccd9c2f22b7e5290df49886008fc2ff55380fdd1
14. 0x2064e3a2b01d0d12d5079bf720a0d0125e9703c55e92de54ad40c302469ec047
15. 0x6913cb48392acb8dc5c940dcdb6e6fc889d544f85dff11da249551a5f027e688
16. 0x518b93854db03dc9fc938883abf30da6eaae5ae0d4336903968fd32a7df8c71b
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4