Evidence row 2202154

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://video-calc.x402tookit.com/frame-rate-info"
    ]
  ],
  "name": "Video & Timecode Calc",
  "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": "Exact fraction and frame duration of 23.976 to 60 fps, and the speed-up and runtime change when converting to another rate.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "fps": "24",
              "runtimeMinutes": 100,
              "toFps": "25"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T00:51:07.435Z",
              "convertedRuntimeMinutes": 96,
              "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.",
              "exactFps": 24,
              "exactFraction": "24/1",
              "fps": "24",
              "frameDurationMs": 41.66667,
              "isNtscFraction": false,
              "nominalTimecodeRate": 24,
              "notChecked": [
                "motion-compensated or pulled-down conversions (see /pulldown-32)",
                "audio pitch correction after a speed change",
                "…1 more"
              ],
              "pitchChangeSemitones": 0.707,
              "reasons": [
                "Frame-for-frame conversion changes speed and pitch by the ratio of the two rates."
              ],
              "runtimeDifferenceSeconds": -240,
              "source": "computed locally (exact rationals)",
              "sourceRuntimeMinutes": 100,
              "speedChangePercent": 4.1667,
              "speedFactor": 1.041667,
              "summary": "24 fps is exactly 24/1 = 24 frames per second, 41.6667 ms per frame. Played frame-for-frame at 25: 4.167% faster, 100 min becomes 96 min.",
              "toFps": "25",
              "verdict": "COMPUTED"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "fps": {
                      "description": "23.976, 24, 25, 29.97, 30, 48, 50, 59.94 or 60",
                      "type": "string"
                    },
                    "runtimeMinutes": {
                      "description": "Runtime of the source in minutes, to get the converted runtime",
                      "type": "number"
                    },
                    "toFps": {
                      "description": "Target rate for a straight frame-for-frame conversion (for example 25 for PAL speed-up)",
                      "type": "string"
                    }
                  },
                  "required": [
                    "fps"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "convertedRuntimeMinutes": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "exactFps": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "exactFraction": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "fps": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "frameDurationMs": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "isNtscFraction": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "nominalTimecodeRate": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "pitchChangeSemitones": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "runtimeDifferenceSeconds": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "sourceRuntimeMinutes": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "speedChangePercent": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "speedFactor": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "toFps": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:39:49.958Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T22:39:49.69Z"
    },
    "resource": "https://video-calc.x402tookit.com/frame-rate-info",
    "serviceName": "Video & Timecode Calc",
    "tags": [
      "frame-rate",
      "ntsc",
      "pal",
      "video"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Exact fraction and frame duration of 23.976 to 60 fps, and the speed-up and runtime change when converting to another rate."
}

What the leaf hashes

{"body":"0296944a95c334942d3835f1c727c78b3c72c135afe0ac889e8ce8cb6e77fdad","id":2202154,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813513179,"prev":null,"subject":"x402_bazaar:https://video-calc.x402tookit.com/frame-rate-info","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. 0x8c03ac8a5ec94ef38993ced3a457f9365cca719f22b6b90fb8350214d9f318ed
2. 0xd19a75ebfac981dd47c72e81ea322dc2f255a2c518e47c5b2719b2703d165552
3. 0x9c578c84bee8ad4fd64fbabc6557ce0a2c3357b9d729e70ba1c3b1be220bff9c
4. 0x4d57f38c2d58f4ce07624ff23631be1f1f72bfb641fb830534dbab25806fd8dc
5. 0xa69d252d3b821ff4007ad5043da65c0e3d305c85a9c3058735967c9cfafc04ca
6. 0x6c649f9b4274c218e5dd13f0f294f005c33a72506dccd34f0ec48476fca59219
7. 0x813cdc04e889f468a664928df5a3fed5bd623dbef6ed58f1dd555efb511f0976
8. 0xf09a35901a1c304385e7bee05178d7deb97de203cf824f9cc94dabf784387146
9. 0xe631cb788a1fa9bf6157d6d95c5e6eec61df54136f5d7c6cf826663bddadfa71
10. 0x6fb06b95a0ff86be4b796a22cc74f35192f8da377d03255b7bd54618b9064520
11. 0xdedcc59313093f94e354f9f5eae92504749db7bc2b630e7f57de8dcba9fb5081
12. 0xeb929035f29f206d033b8132e6680865043bb8a18b5a9d2ddcc88589b82478a5
13. 0x749638e83897749b17c0b5a0587a19541d9c0e6d95590918e98f786991029466
14. 0xf38c9617f655dc8f7c8fa11461cb30752d581a6bbb15051130839452c80c4270
15. 0x510fa2c647d18bb802da12cf41e17d136163e6624e69ed77e15235c4284b69c7
16. 0x5e23ec5954c11a4530aab8c635a72b12bcfeb6fcb03c6cb1a990cc1743424543
17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af