Evidence row 526904

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://japan-business-day-api.matchan962.workers.dev/v1/koyomi"
    ]
  ],
  "name": "Japan Business Day API",
  "owner_address": "0x1d813e4e4c7b0ae7900a6d2b6bca560941102859",
  "raw": {
    "accepts": [
      {
        "amount": "5000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1d813e4e4C7B0ae7900a6d2b6bcA560941102859",
        "scheme": "exact"
      },
      {
        "amount": "5000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x1d813e4e4C7B0ae7900a6d2b6bcA560941102859",
        "scheme": "exact"
      }
    ],
    "description": "Japanese traditional calendar for a date: rokuyo (taian/butsumetsu... lucky days used for weddings, funerals, contracts), Japanese era (Reiwa) date, old lunisolar calendar date incl. leap months, 24 solar terms (sekki) and year eto. Verified against the National Astronomical Observatory of Japan.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "date": "2026-10-25"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "date": "2026-10-25",
              "lunar": {
                "text": "旧暦9月15日"
              },
              "rokuyo": {
                "name": "大安",
                "reading": "taian"
              },
              "wareki": {
                "text": "令和8年10月25日"
              }
            },
            "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": {
                      "format": "date",
                      "type": "string"
                    }
                  },
                  "required": [
                    "date"
                  ],
                  "type": "object"
                },
                "type": {
                  "const": "http",
                  "type": "string"
                }
              },
              "required": [
                "type",
                "method"
              ],
              "type": "object"
            },
            "output": {
              "properties": {
                "example": {
                  "type": "object"
                },
                "type": {
                  "type": "string"
                }
              },
              "required": [
                "type"
              ],
              "type": "object"
            }
          },
          "required": [
            "input"
          ],
          "type": "object"
        }
      }
    },
    "lastUpdated": "2026-10-27T10:09:05.141Z",
    "quality": {
      "l30DaysTotalCalls": 8,
      "l30DaysUniquePayers": 8,
      "lastCalledAt": "2026-10-27T10:09:04.608Z"
    },
    "resource": "https://japan-business-day-api.matchan962.workers.dev/v1/koyomi",
    "serviceName": "Japan Business Day API",
    "tags": [
      "japan",
      "business-day",
      "holiday",
      "fintech",
      "logistics"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Japanese traditional calendar for a date: rokuyo (taian/butsumetsu... lucky days used for weddings, funerals, contracts), Japanese era (Reiwa) date, old lunisolar calendar date incl. leap months, 24 solar terms (sekki) and year eto. Verified against the National Astronomical Observatory of Japan."
}

What the leaf hashes

{"body":"b56d0d817d3d7885158b1d92dd38b1931d8393367accd51b689ca9ff1a6c588d","id":526904,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124792369681,"prev":451969,"subject":"x402_bazaar:https://japan-business-day-api.matchan962.workers.dev/v1/koyomi","subject_kind":"source_record"}

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. 0xa550744fce644e2ab4e7308dfe1257c7b5d0f912412142710e8ab17e9eed0f59
2. 0x9b8a5e78687fb839fe166c6812cede1a1f0035a75f4511279a10ed7cfe16d73a
3. 0xcae238cccebb32370f50a1036b7541b5eb630b003388eaede7e9ec3975aed8c6
4. 0xff376970c8ff905c1cf0dc8800fe7bbf8d825354b467f10cb8b55e4e24caa390
5. 0x46d11ac6a61f684ab02d969ca0b1b1a045f10f8c28b83d5699802fe1541a5f0f
6. 0xa8ac9e2141a3b86725dfc542466d371de062f61373403d4acc5797720e74fc10
7. 0x1aa2e80203b36b67d909f049bcbdcdeafabd77ea34f4f44766500fd13af7d115
8. 0x164bb247998c051b7d38b1ccf363017b6e1a0bb778afff001df70ad6094b9af5
9. 0x1597abef3c2037a70f735bc9cc7fe97c6a501a79fbb453488d11a4036f75ff55
10. 0xf883d1c3835d48d9bbf31812ab3494ca3e1fe07c42ed8768932a5a052f848a5d
11. 0x69951fe7bef20c8209773a6c17f837f8a4e6e5fd13d18dd1c35d4587df471a68
12. 0xc99f276d750460ec390a64510fe7ad6b609e36fddb943e81299b02a623e63048
13. 0x87816aee66e8f6e0f1e55ea83733bb58cf9612d36c45fd5b7fc5d6f4484b78fd
14. 0x0644f7e2a4b5bf9b66f185cc3fbb766d456ad94490183852f4c6db5855114cc5
15. 0xa3fff4662cd48659f5bafd0612931759a90e53a7b4209ed8f26f6594a07bb547
16. 0x64c405a28e8819716221eb2529fe4ce277ab08025e17e685cbd5ece75ceb75c7
17. 0xf30fddbf4811226c58e8f0daf36fddd79fc5f1356b592bb1d99a8061ddbabe66
18. 0x2bf8151e5f157dd183b9de6fa00469551932a7a6e3f33a694895000ac9061197
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4