Evidence row 526903

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://japan-business-day-api.matchan962.workers.dev/v1/add-business-days"
    ]
  ],
  "name": "Japan Business Day API",
  "owner_address": "0x1d813e4e4c7b0ae7900a6d2b6bca560941102859",
  "raw": {
    "accepts": [
      {
        "amount": "10000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:8453",
        "payTo": "0x1d813e4e4C7B0ae7900a6d2b6bcA560941102859",
        "scheme": "exact"
      },
      {
        "amount": "10000",
        "asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 300,
        "network": "eip155:137",
        "payTo": "0x1d813e4e4C7B0ae7900a6d2b6bcA560941102859",
        "scheme": "exact"
      }
    ],
    "description": "Add or subtract N Japanese business days from a date (e.g. settlement date T+2, delivery ETA). Skips weekends and national holidays; optional bank calendar.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "calendar": "bank",
              "date": "2026-12-28",
              "days": 3
            },
            "type": "http"
          },
          "output": {
            "example": {
              "calendar": "bank",
              "date": "2026-12-28",
              "days": 3,
              "result": "2027-01-04"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "properties": {
                    "calendar": {
                      "description": "national = weekends + Japanese national holidays; bank = also Dec 31 - Jan 3 (bank holidays)",
                      "enum": [
                        "national",
                        "bank"
                      ],
                      "type": "string"
                    },
                    "date": {
                      "format": "date",
                      "type": "string"
                    },
                    "days": {
                      "maximum": 366,
                      "minimum": -366,
                      "type": "integer"
                    }
                  },
                  "required": [
                    "date",
                    "days"
                  ],
                  "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": "2026-10-27T10:09:13.783Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 5,
      "lastCalledAt": "2026-10-27T10:09:13.637Z"
    },
    "resource": "https://japan-business-day-api.matchan962.workers.dev/v1/add-business-days",
    "serviceName": "Japan Business Day API",
    "tags": [
      "japan",
      "business-day",
      "holiday",
      "fintech",
      "logistics"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Add or subtract N Japanese business days from a date (e.g. settlement date T+2, delivery ETA). Skips weekends and national holidays; optional bank calendar."
}

What the leaf hashes

{"body":"534cced4a6930d92e7e490c2de4429cf2b1a3553efaee72fd79553322b4c22e4","id":526903,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124792367697,"prev":451968,"subject":"x402_bazaar:https://japan-business-day-api.matchan962.workers.dev/v1/add-business-days","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. 0x4047a8888286d6e8d3be7cb6b199e08427aeea8e901857623b28e04bf6e1099b
2. 0x58623e6599a9b7416ff25976d17ab718da21d2b94ab55694f5c29f55e8f8d838
3. 0x625e56b3131bae8c192955e046da5608f079c91983df3948f35c015514781579
4. 0xb88334c423c3cece778209ca10d79ccfb3406a5726c1fff8b66689e095a3c03e
5. 0x80cfc88c32367f3996a643a5c5e80c97919f58573ebf8aa06fb2dda7496f6d3a
6. 0xc5bf7730a2c6e7f73a451cbebc20f2d264b191f3a75157f342f6ca77bbe969b6
7. 0x1024383a336432b28bf110f3efbe653e69a3fc2af6180ad2bdac4a7567b1ddd9
8. 0x55c90091d260b15ea6117c41effc9cb02f220a8e38977be82e955cdaafa7296f
9. 0x35901615dc9f453212a6fc7dbd91defba8a283279761c59b585f1297691272b6
10. 0xeba79c58e4a3ef2db94e833d53b12f55c84bc102535f34caedc4d30bf3550827
11. 0x4f137633fff61e4e593fd379320dee6ab066de0db156d01c93cb3888d4cd2051
12. 0xbac4a74052976278393cfcc6a341f6cfd372f2fd8909eeffcc72872579289c40
13. 0xe097a5c0640b3c074fef1c9f5fe91898965687ad755f1c27c31462a60e313f0a
14. 0x1de9caca1fa6dbbe090ee48dad5f962bbfd09856fd897edc8c3c110272d35c56
15. 0x2c117b27721eea45f6590fbccb471d21a7b0b079a53f089ecb300c63bdb3aebf
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4