Evidence row 561615

What was observed

{
  "count": 4,
  "tools": [
    {
      "description": "Net pay on the same salary in several states, ranked best-first, with each state's gap to the best one.",
      "inputSchema": {
        "properties": {
          "filingStatus": {
            "description": "Filing status. Defaults to \"single\". \"single\" also covers married-filing-separately.",
            "enum": [
              "single",
              "married",
              "head_of_household"
            ],
            "type": "string"
          },
          "salary": {
            "description": "Gross annual salary in US dollars",
            "minimum": 0,
            "type": "number"
          },
          "states": {
            "description": "2 to 51 states/DC",
            "items": {
              "description": "US state or DC: full name (\"Ohio\"), two-letter code (\"OH\"), or slug (\"ohio\", \"district-of-columbia\").",
              "type": "string"
            },
            "maxItems": 51,
            "minItems": 2,
            "type": "array"
          }
        },
        "required": [
          "states",
          "salary"
        ],
        "type": "object"
      },
      "name": "compare_states"
    },
    {
      "description": "What is actually withheld from a bonus in 2026: the federal flat 22% supplemental rate (37% above $1,000,000 of supplemental wages), the state supplemental treatment (flat rate, aggregate/regular method, or none), and FICA.",
      "inputSchema": {
        "properties": {
          "bonusAmount": {
            "description": "Gross bonus in US dollars",
            "minimum": 0,
            "type": "number"
          },
          "earlierBonuses": {
            "description": "Optional bonuses already paid earlier this year, in US dollars. They count toward the federal $1,000,000 (37%) threshold and state tests such as Massachusetts' 9% rate",
            "minimum": 0,
            "type": "number"
          },
          "filingStatus": {
            "description": "Filing status. Defaults to \"single\". \"single\" also covers married-filing-separately.",
            "enum": [
              "single",
              "married",
              "head_of_household"
            ],
            "type": "string"
          },
          "salary": {
            "description": "Optional regular annual salary — improves FICA and aggregate-method accuracy",
            "minimum": 0,
            "type": "number"
          },
          "state": {
            "description": "US state or DC: full name (\"Ohio\"), two-letter code (\"OH\"), or slug (\"ohio\", \"district-of-columbia\").",
            "type": "string"
          }
        },
        "required": [
          "state",
          "bonusAmount"
        ],
        "type": "object"
      },
      "name": "compute_bonus_withholding"
    },
    {
      "description": "Full 2026 paycheck breakdown for a salary in one state: federal income tax, Social Security, Medicare, state income tax, state payroll programs, net pay (annual/monthly/biweekly) and effective tax rate.",
      "inputSchema": {
        "properties": {
          "filingStatus": {
            "description": "Filing status. Defaults to \"single\". \"single\" also covers married-filing-separately.",
            "enum": [
              "single",
              "married",
              "head_of_household"
            ],
            "type": "string"
          },
          "salary": {
            "description": "Gross annual salary in US dollars",
            "minimum": 0,
            "type": "number"
          },
          "state": {
            "description": "US state or DC: full name (\"Ohio\"), two-letter code (\"OH\"), or slug (\"ohio\", \"district-of-columbia\").",
            "type": "string"
          }
        },
        "required": [
          "state",
          "salary"
        ],
        "type": "object"
      },
      "name": "compute_take_home"
    },
    {
      "description": "A state's 2026 schedule: flat rate or bracket ladder, standard deduction, employee payroll programs, bonus/supplemental method, and the statutory source the figures come from.",
      "inputSchema": {
        "properties": {
          "filingStatus": {
            "description": "Filing status. Defaults to \"single\". \"single\" also covers married-filing-separately.",
            "enum": [
              "single",
              "married",
              "head_of_household"
            ],
            "type": "string"
          },
          "state": {
            "description": "US state or DC: full name (\"Ohio\"), two-letter code (\"OH\"), or slug (\"ohio\", \"district-of-columbia\").",
            "type": "string"
          }
        },
        "required": [
          "state"
        ],
        "type": "object"
      },
      "name": "get_state_rates"
    }
  ]
}

What the leaf hashes

{"body":"e263a2b6bfbba91f8cff01e0b0ba226893289196a6822c56e8dab462641ab01e","id":561615,"kind":"mcp.tools","method":"probe.mcp/1","observed_us":1793137225662139,"prev":null,"subject":"2ee33a02-dd6a-46c4-9f93-c986eeb63c70","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. 0x25bf93a2f450ec1ee10bde22c8d53e0ae5ffcbe6aade0586a1c575abb0cc0de6
2. 0x3c51dc802cc544e1083c2966a0abc6a19eb4047ded742e9761f9adb017012b75
3. 0x94c4db1bd757f5f627d1c16bcf553ee6475d1b4eddff4bf999cbf5fefb32da0e
4. 0x3880f4da85261320c0f8693feef5adbdcade9e513e0b2eaaf3a52b2b672674d1
5. 0x01216d18cc47965d365bcc44b45e52f254b90cb1e58b2fce60efc8be7422f6dc
6. 0xc51c9d1e3351e91335040210dd2f920f688d884dfc910c996d62bbd9e9c8a290
7. 0xd331ad862d958f6971df2991638d20d017949484456c6d612b0dfc83b1297a3f
8. 0xbb880e4021fe7f2a1301c3013e97bdcd5288f9d2ef2cea5cd666b0679e4a304f
9. 0x2ed645d4307b115079f73fd9268033a07159d2695cb1509f3511cdbb26ca01c3
10. 0x093785ab0a816550f292f169f75fec391c16bd3d86deac07d7bf317be34ac41f
11. 0x17a5d8a0d619389b23b9c7065a443f140dfd86a50ae32f665f667aeeb0d62b5c
12. 0x442ef05dbe7931d22c60e72d459fdb2874e7d0eab89c16f41f0a865bf55610d6
13. 0x1a710d4f8e6092d584b581d8599ff9183c0008f9275cf0601c925b43b4e84ae6
14. 0xe8ee6f6ed50253c5ee2d1aa85a4b1a38ce94bca7f3b72fd1850f496152dbe285
15. 0xa383a1cfe9b3f6af67eb4c7642564b9424d46d7fca90e7ba175d549f8b67dd0c
16. 0x52efa60e0c3d8525486d2310eb3b6b566c9677c64fd1f819edb072cf101bcbdb
17. 0x22c1fb9487ee0b9732fa017a0cc321eb27a60c08450d112f755089796e12cb1c
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4