addrbookFor publishers
← The evidence ledger

Evidence row 2202153

Observed , by sync.x402_bazaar/1.

Kind
listing
About
source_record x402_bazaar:https://video-calc.x402tookit.com/pulldown-32
Recorded
Previous row
None: the first of its kind about this subject
Body SHA-256
59e66592070279b82874f054a55953df966d9c738cf4933128b0b8ddff8be193
Leaf
0x73ee7139fdd1025ed620a64caeefe7424d206e6a301566d73a01d3a70ac6d9b9

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://video-calc.x402tookit.com/pulldown-32"
    ]
  ],
  "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": "2:3 pulldown cadence: which film frames land in which video fields and frames when 24 fps film is telecined.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "filmFrames": 4
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-12T00:51:07.691Z",
              "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.",
              "fieldSequence": "AABBBCCDDD",
              "fields": 10,
              "filmFpsAfterSlowdown": 23.976,
              "filmFrames": 4,
              "mixedFrameCount": 2,
              "notChecked": [
                "field dominance (upper or lower field first)",
                "reverse telecine of real video",
                "…1 more"
              ],
              "reasons": [
                "Film frames alternate 2 fields, 3 fields, 2, 3, so 24 film fps becomes 60 fields per second, then 59.94 after the 0.1% NTSC slowdown (24 fps becomes 23.976)."
              ],
              "source": "computed locally (2:3 cadence)",
              "startPhase": 0,
              "summary": "4 film frame(s) become 10 fields = 5 video frame(s); every 4 film frames make 5 video frames, 2 frame(s) here mix two film frames.",
              "verdict": "MAPPED",
              "videoFpsAfterSlowdown": 29.97,
              "videoFrameCount": 5,
              "videoFrames": [
                "AA",
                "BB",
                "…3 more"
              ]
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "filmFrames": {
                      "description": "Number of film frames to map, 1 to 240",
                      "type": "integer"
                    },
                    "startPhase": {
                      "description": "0 (default) starts on a 2-field frame; 1 starts on a 3-field frame",
                      "type": "integer"
                    }
                  },
                  "required": [
                    "filmFrames"
                  ],
                  "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"
                      ]
                    },
                    "fieldSequence": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "fields": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "filmFpsAfterSlowdown": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "filmFrames": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "mixedFrameCount": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "startPhase": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "videoFpsAfterSlowdown": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "videoFrameCount": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "videoFrames": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:39:50.885Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 1,
      "lastCalledAt": "2026-11-01T22:39:50.607Z"
    },
    "resource": "https://video-calc.x402tookit.com/pulldown-32",
    "serviceName": "Video & Timecode Calc",
    "tags": [
      "pulldown",
      "telecine",
      "film",
      "ntsc"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "2:3 pulldown cadence: which film frames land in which video fields and frames when 24 fps film is telecined."
}

What the leaf hashes

{"body":"59e66592070279b82874f054a55953df966d9c738cf4933128b0b8ddff8be193","id":2202153,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813510333,"prev":null,"subject":"x402_bazaar:https://video-calc.x402tookit.com/pulldown-32","subject_kind":"source_record"}

Proof

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

  1. 0x73ee7440a3ba449d3448a61df7f30bcb198fc7645959075dd1be7468cf4edfa7
  2. 0x4db652f55ed192bf9fa87aef9cfc8f2e638fe27c611632b2f05541057b8fbd47
  3. 0xb10e12493e7a39d744892bfa942985db3ee3499ab3ae18c9f395e7c6da800e8d
  4. 0xa885ad0791d0982f5dbba6f4ec8a9f310951b054471107af8380042a9ceff7be
  5. 0xab2cc132122ae004ae269be5a82050e578743fda81fde0c72d07776c3b7cf5f4
  6. 0x564f22f2247aa7ce0f2adaf1b4e6a6fc0299f00bee2a2d4bfe76147d40aff29b
  7. 0x1123e354c5a35f333e0453fc947264aa9bc516622245299f7d6a05d41c8f5ac9
  8. 0x12403e193805995fed7a7e50cb31797519bef57be334f9b064c78a1409bc7338
  9. 0x431dc072bb646ba1371964ae1592fd097aa40119a55283ecc0de6c0148da85b0
  10. 0x2b5fb286798c3a9dd048777553e45ec473938ff54db7090c30db97b54710eab9
  11. 0x6fab6e9ae9938abebbc59ebae3b5a2f89707d9d65026e20a9d3cade9e8f208db
  12. 0x5dc8b7bdefecaffd83e245106223f07663bf6e8920fbf34d8c4c149db6fd1109
  13. 0xc661008e4484d030079bed4f257f712dbf632593873d45182aa879bd19ae8590
  14. 0x05ad6b5d39c05b20c421cfd08a369494609a679562a35de106ddfc5164e8f853
  15. 0x60dd7fd8117cbf3b80707f722623736c8c2b5b56277e8e78c9f81ef2dab8deab
  16. 0x3b89dd05634a82075204d3c671f613081ddfd9df739c64c0a8f39081bdfa32c7
  17. 0x1805ef693fbdb2c23fcb61616f830408ca89bec1dc5b68ee47a770ffc0b9760a
  18. 0x4d205063c881c48edbbb37762a8d3bbb7444d4c42daa882f663a231893d25c35
  19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e
Day root
0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1
Chained
0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2
Published
On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af

How to check it · This row as JSON