Evidence row 2202146

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://calendar-systems.x402tookit.com/julian-calendar"
    ]
  ],
  "name": "Calendar Systems",
  "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": "Convert between Gregorian and Julian calendar dates (Old Style / New Style) with the day difference for that date.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "date": "2025-01-07"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "asOf": "2026-10-11T08:54:33.379Z",
              "before1582Reform": false,
              "dayDifference": 13,
              "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.",
              "from": "gregorian",
              "gregorianDate": "2025-01-07",
              "julianDate": "2024-12-25",
              "notChecked": [
                "which calendar a given country or church actually used on that date (adoption ranged from 1582 in Catholic Europe to 1752 in Britain, 1918 in Russia, 1923 in Greece)",
                "the year-start convention (1 January versus 25 March) used in older documents",
                "…1 more"
              ],
              "reasons": [
                "The Julian calendar adds a leap day every 4 years; the Gregorian skips it in century years not divisible by 400, so the gap grows by a day in 1700, 1800, 1900 and 2100.",
                "Both dates are real civil dates for the Gregorian reform of 1582 onward (where adopted)."
              ],
              "source": "Reingold and Dershowitz, Calendrical Calculations: Julian and Gregorian fixed-date arithmetic, computed locally",
              "summary": "Gregorian 2025-01-07 is Julian 2024-12-25 (the Gregorian date is 13 days ahead), a Tuesday.",
              "verdict": "CONVERTED",
              "weekday": "Tuesday"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "date": {
                      "description": "YYYY-MM-DD, year 1 to 9999",
                      "type": "string"
                    },
                    "from": {
                      "description": "gregorian (default) or julian: the calendar the date is written in",
                      "enum": [
                        "gregorian",
                        "julian"
                      ],
                      "type": "string"
                    }
                  },
                  "required": [
                    "date"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "properties": {
                    "asOf": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "before1582Reform": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "dayDifference": {
                      "type": [
                        "null",
                        "number"
                      ]
                    },
                    "degraded": {
                      "type": [
                        "boolean",
                        "null"
                      ]
                    },
                    "disclaimer": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "from": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "gregorianDate": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "julianDate": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "notChecked": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "reasons": {
                      "items": {
                        "type": "string"
                      },
                      "type": [
                        "array",
                        "null"
                      ]
                    },
                    "source": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "summary": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "verdict": {
                      "type": [
                        "null",
                        "string"
                      ]
                    },
                    "weekday": {
                      "type": [
                        "null",
                        "string"
                      ]
                    }
                  },
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-11-01T22:40:22.066Z",
    "quality": {
      "l30DaysTotalCalls": 2,
      "l30DaysUniquePayers": 2,
      "lastCalledAt": "2026-11-01T22:40:21.887Z"
    },
    "resource": "https://calendar-systems.x402tookit.com/julian-calendar",
    "serviceName": "Calendar Systems",
    "tags": [
      "julian-calendar",
      "gregorian",
      "calendar",
      "old-style"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Convert between Gregorian and Julian calendar dates (Old Style / New Style) with the day difference for that date."
}

What the leaf hashes

{"body":"ca9f90729bb8b949535f54c682e2d92e82efc44232223cd2730c85828f5f638e","id":2202146,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793646813489345,"prev":null,"subject":"x402_bazaar:https://calendar-systems.x402tookit.com/julian-calendar","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. 0x19be077b0ddc26667b3aec89023e6a6f3b5ebb5ea95bdae0c344f9a556301d3f
2. 0x1c57d5c95f1ff0969da13c0039cb9fd7cfcd25e0171270eb0d44b6459c5d40e1
3. 0x39a10fbebbc67a6be54daf983bda1306c5d2038c620e74c916804cc754848626
4. 0x5a93837f892a6fe3a35d2b538f4b23e044db6e866376d8c6458344c9c850df91
5. 0x448c7e27337268d0cd320a9daea17417aa81d6d5d99288d0dab49f3edacf165f
6. 0x7c629ae835ead8d7b4ad8d950f20c3896ba932a139c9ded6ea3e408aed2493d0
7. 0xa8f3715f9418743b8aa028bf29c451f8f94713cb7fd2e0ad49ed346ff3558df2
8. 0xba2678c01f492686f31862fc9c81d6d2a5a4dfc70c647e2ac69b51f0f47e7d97
9. 0x5267c96da6101512284051043f8d88840ad5e93dc0d22707b06673e349d64139
10. 0x5ac12d468c1dd922bc30ac95e978ce8fa2c75aae6d643950c93b78b58f47841a
11. 0x4d3941ce66c8aaea96fe3c729f5f67e05c9811c40bd87d75ef292405b91cb697
12. 0x26a5e40cd7017d9484a6a4cc5d6e133e2ac2a62428feac84f9ae661be99ee435
13. 0x3c6bb4ee00210310afea4db77a3d5e14b8fbfec0b426541034734f028665bbb4
14. 0xad8410fe2298c1ccff00c301cabf57d2495acf6e614e5236bbeb834747908ca4
15. 0xb6470417fdb2a0e3de9c1abb1722cbc88bc0dfb5afda0a77e1eac26ab1683ece
16. 0xac40f077ca4be8c3432a67771725cc315e8101fc2649999cfad2c900a7640e27
17. 0x53a741b69e9e51c4a288a74712aa6ac3fb28c8923cd3e6461d161c4f2d48b31a
18. 0x050f2978b537f7afb21ee1551577cdf146d1c56f4df12d24315ae5e69366b0a4
19. 0x365b161a4b68d750dcc4b3ecce1154a2163c87b08762079428e68f0ebb6a754e

Day root

0x78fecaabbe319e56f5c4b80fc02e2052e198ad24781da8832a475ff65f2002d1

Chained

0xdc35957db5d1371ca382b9152878ffece28ec7c5cb4f98fd71ddb367f8b999b2

Published

On Arc Testnet, block 70432815: 0x56b814612eb2e3e544153df3e91e1f7199106d1e430c7d8c6b653feeb9ebe9af