Evidence row 526911

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://handelskalender-api.pages.dev/v1/trading-day"
    ]
  ],
  "name": "Exchange Trading Calendar",
  "owner_address": "0x896babcda513322af2218fe7346353846835f978",
  "raw": {
    "accepts": [
      {
        "amount": "2000",
        "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
        "extra": {
          "name": "USD Coin",
          "version": "2"
        },
        "maxTimeoutSeconds": 60,
        "network": "eip155:8453",
        "payTo": "0x896baBcda513322AF2218fe7346353846835f978",
        "scheme": "exact"
      }
    ],
    "description": "Use when an agent needs to know if a stock exchange trades on a given day (default today) before scheduling orders, reports or alerts. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Returns holiday name, hours in local time + UTC, half days, lunch breaks, pre/after-market (Nasdaq, Xetra), live status, next open/close, previous/next trading day. Official exchange calendars only; bad input: HTTP 400, no charge.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "date": "2026-10-26",
              "exchange": "XWBO"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "coverage": {
                "from": "2026-01-01",
                "to": "2027-12-31"
              },
              "date": "2026-10-26",
              "exchange": {
                "country": "AT",
                "mic": "XWBO",
                "name": "Wiener Börse (Vienna Stock Exchange)",
                "timezone": "Europe/Vienna"
              },
              "extended": null,
              "holiday": "Nationalfeiertag",
              "hoursKnown": true,
              "hoursNote": null,
              "isOpenNow": null,
              "isTradingDay": false,
              "localTime": null,
              "nextClose": null,
              "nextOpen": null,
              "nextTradingDay": "2026-10-27",
              "note": null,
              "previousTradingDay": "2026-10-23",
              "reason": "holiday",
              "session": null,
              "sources": [
                "https://www.wienerborse.at/uploads/u/cms/files/handel/boersenfeiertage-2026-de.pdf"
              ],
              "status": null,
              "weekday": "Monday"
            },
            "type": "json"
          }
        },
        "schema": {
          "$schema": "https://json-schema.org/draft/2020-12/schema",
          "properties": {
            "input": {
              "additionalProperties": false,
              "properties": {
                "method": {
                  "enum": [
                    "GET"
                  ],
                  "type": "string"
                },
                "queryParams": {
                  "additionalProperties": false,
                  "properties": {
                    "date": {
                      "description": "Day as YYYY-MM-DD. Optional, default: today in the exchange's time zone.",
                      "type": "string"
                    },
                    "exchange": {
                      "description": "Exchange MIC code, e.g. XNYS (NYSE), XNAS (Nasdaq), XLON (London), XETR (Xetra), XPAR (Paris), XTKS (Tokyo), XHKG (Hong Kong). Common names also work (NYSE, Xetra, LSE). Free list: GET /v1/exchanges.",
                      "type": "string"
                    }
                  },
                  "required": [
                    "exchange"
                  ],
                  "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": "2026-10-27T10:08:33.472Z",
    "quality": {
      "l30DaysTotalCalls": 10,
      "l30DaysUniquePayers": 6,
      "lastCalledAt": "2026-10-27T10:08:33.335Z"
    },
    "resource": "https://handelskalender-api.pages.dev/v1/trading-day",
    "serviceName": "Exchange Trading Calendar",
    "tags": [
      "stock-exchange",
      "trading-calendar",
      "market-hours",
      "holidays",
      "nyse"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use when an agent needs to know if a stock exchange trades on a given day (default today) before scheduling orders, reports or alerts. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Returns holiday name, hours in local time + UTC, half days, lunch breaks, pre/after-market (Nasdaq, Xetra), live status, next open/close, previous/next trading day. Official exchange calendars only; bad input: HTTP 400, no charge."
}

What the leaf hashes

{"body":"cd6e1d85c3d1ee486c0988129c25bc0738c792e8af235087422d815dd8ab8e8a","id":526911,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124792387790,"prev":451978,"subject":"x402_bazaar:https://handelskalender-api.pages.dev/v1/trading-day","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. 0x5c0e22ef81dc2c5a37c54887946244631c74773b11c4ffc68f10728bf772cafe
2. 0xc7ef37fc20becc4daabb6923de1dea30d017ab170f2724b59bb5bf45a525e68a
3. 0x273c79ae479abb6f61d28c143a41b8ed160d99c14711b4700232cbb8ba909a9b
4. 0x18bc78a0616fc950e082146120f3e9752f2ad40528a67427a64d41eec1bf19a6
5. 0xfeb9010d267d9a61e5b9347cb14dad82d22ca0bdd5f1f99f1ad0fd38b0a208ab
6. 0x124ea0dfbe34d4636465d331e42f785cc143478108544f0548c92fedbd6acabb
7. 0xe9adc4d9a9cbf82d1249a46bc561115bc71614b0663434fc287bfef90488fe41
8. 0x3cc58718315a8f6b0b18be843458a98ae6f6699b79351ca89118c016d04a7ef5
9. 0x962b5d22886444807fbeeff56288415a23e2a285519bc9ad1f5e8d6047148e38
10. 0x1b25ae666313bff38c23b2adc99821e2ce47e2eaf0ac42e14e1df786abb0c55e
11. 0x2d219b1e0544e01cd0a0543f34de9ec53392c428e9c0deac7c16fabc7482887f
12. 0x8b6f2e00ca53627a556efa28a330329defff6f53091e97b18db21c58436307cd
13. 0x5b3213451efe1e2950dd287afaede00cc8a45dfd9721ef9b3d698bde1eeb9909
14. 0x674bc1173d39130be4d15bbfc7327f8a8af87eb251e54c8d4409c7e840b9e538
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4