Evidence row 2201244

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://stats-tests.x402tookit.com/fisher-exact"
    ]
  ],
  "name": "Statistical Tests",
  "owner_address": "0xb531320805c5bed1d46aeadcf4f008fdf172dbda",
  "raw": {
    "accepts": [
      {
        "amount": "20000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
        "extra": {
          "feePayer": "D6ZhtNQ5nT9ZnTHUbqXZsTx5MH2rPFiBBggX4hY1WePM",
          "transactionVersions": [
            0
          ]
        },
        "maxTimeoutSeconds": 300,
        "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
        "payTo": "DUPiupXtuox38dcGoXUKer5mAydCzmaHjrbQ66qeEm8s",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      },
      {
        "amount": "20000",
        "asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:42161",
        "payTo": "0xb531320805C5BED1D46AEaDcF4F008FDF172DBDa",
        "scheme": "exact"
      }
    ],
    "description": "Fisher's exact test for a 2x2 table: two-sided and one-sided p-values from the hypergeometric distribution, plus odds ratio.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "a": 3,
              "b": 1,
              "c": 1,
              "d": 3
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:55:55.790Z",
              "degraded": false,
              "disclaimer": "Screening signal computed from the named public source. Not financial, legal or investment advice; provided as is. Verify at the source before acting.",
              "notChecked": [
                "independence of observations",
                "which of the one-sided p-values matches your prior hypothesis (decide before looking)",
                "…1 more"
              ],
              "pValueGreater": 0.24285714,
              "pValueLess": 0.98571429,
              "pValueTwoSided": 0.48571429,
              "probabilityOfObservedTable": 0.22857143,
              "reasons": [
                "Exact test from the hypergeometric distribution with fixed margins: valid for any sample size, unlike chi-square for small counts.",
                "The two-sided p adds every table at most as likely as the observed one."
              ],
              "sampleOddsRatio": 9,
              "significantAt5pct": false,
              "source": "computed locally",
              "summary": "Table 3,1;1,3 (n = 8): two-sided p = 0.4857, one-sided (more in the top-left) p = 0.2429; sample odds ratio 9.",
              "table": [
                [
                  3,
                  1
                ],
                [
                  1,
                  3
                ]
              ],
              "total": 8,
              "verdict": "NOT_SIGNIFICANT"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "a": {
                      "description": "Row 1, column 1 count",
                      "type": "integer"
                    },
                    "b": {
                      "description": "Row 1, column 2 count",
                      "type": "integer"
                    },
                    "c": {
                      "description": "Row 2, column 1 count",
                      "type": "integer"
                    },
                    "d": {
                      "description": "Row 2, column 2 count",
                      "type": "integer"
                    }
                  },
                  "required": [
                    "a",
                    "b",
                    "c",
                    "d"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pValueGreater": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pValueLess": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "pValueTwoSided": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "probabilityOfObservedTable": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "sampleOddsRatio": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "significantAt5pct": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "table": {
                      "items": {
                        "items": {
                          "type": "number"
                        },
                        "type": "array"
                      },
                      "type": [
                        "array",
                        "null"
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                    },
                    "total": {
                      "type": [
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                        "number"
                      ]
                    },
                    "verdict": {
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                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-02T04:07:31.787Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-02T04:07:31.624Z"
    },
    "resource": "https://stats-tests.x402tookit.com/fisher-exact",
    "serviceName": "Statistical Tests",
    "tags": [
      "statistics",
      "fisher-exact",
      "hypothesis-test",
      "contingency-table"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Fisher's exact test for a 2x2 table: two-sided and one-sided p-values from the hypergeometric distribution, plus odds ratio."
}

What the leaf hashes

{"body":"35427bc724fbfd668df4a6f51f2c827a65cf37c9b3e3d73d69bb976914e2c002","id":2201244,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646803016610,"prev":null,"subject":"x402_bazaar:https://stats-tests.x402tookit.com/fisher-exact","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-11-02 (444186 rows).

1. 0x857d5259701ae62e303c60c5c46c06f2afe068abd9e5c0e13be73cf0ee94ff47
2. 0x7558bfce08fb36178d4965e3d50aa9db40b8746f6285f98e8b847a06dac4bbe3
3. 0x08919492bc84cba0b8b49578ddacdddfc7256c4a400bee63be9aba711c569673
4. 0x90d44c4654d948848467e2523744df84b73c4d753248317ec3d7d89ddf2bd045
5. 0x61e47ed78043158ef77227c66b8b943c269eda058d0c07c7cb2ac3c1c6cb223b
6. 0x315277b3edabbcb4d53801f3b81366cb20772f3c6b36edc7e7cd4591abb36d4c
7. 0xeb1ae05963e1547e0d77a34bb07b9008fe550e66188f07ef47d26700372cecff
8. 0x00626a478778db2f71e7bea7b9931d5a13ddaed5c4e1a23467b81e35e5e4a02c
9. 0xed5596249195b164ec7f5a2ff1ddcb6d9ad415b1c5aa2bdf982b3f9417aaca45
10. 0x81489ad75fca0fe426d5974b39402c1d64337dc28d18da61ed3dcedd90f93673
11. 0xafbffad6c5910d6eeb054bc01997b605906e12baa18fdc7fd71513353d34d52c
12. 0xe411f7e720673ba3ec5e17cf225d7b613794f2c0fc54fc3c10f61996c290e915
13. 0x01026267e0e47b54aad32519d39da32ac6f5740a40f20ce4f9f7312a7268ad12
14. 0x45296e5ab7be6d8163e528d05039d4c685fc8962fc80b797c1d68574b10b444c
15. 0x510fa2c647d18bb802da12cf41e17d136163e6624e69ed77e15235c4284b69c7
16. 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af