Evidence row 76194

Observed 26 Oct 2026, 14:38 UTC, by baseline/1.

Kind: listing
About: source_record x402_bazaar:https://handelskalender-api.pages.dev/v1/trading-calendar
Recorded: 26 Oct 2026, 14:38 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: 44efe42bcf7dee6b9313cbc1cdab1f8bb4e2054ebc6e596dc492b5e1bad87e82
Leaf: 0xccfa1b39cfb952ebbdc9a8728b72bb6b0dd2d36d5c845caab2840b433042542d

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://handelskalender-api.pages.dev/v1/trading-calendar"
    ]
  ],
  "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 plans ahead and needs every closure of a stock exchange for a whole year: holiday names, half days, late openings, regular hours, count of trading days. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Official exchange calendars only; bad input or uncovered year: HTTP 400, no charge.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "exchange": "XNYS",
              "year": "2026"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "closed": [
                {
                  "date": "2026-01-01",
                  "name": "New Year's Day",
                  "weekday": "Thursday"
                }
              ],
              "coverage": {
                "from": "2026-01-01",
                "to": "2028-12-31"
              },
              "exchange": {
                "country": "US",
                "mic": "XNYS",
                "name": "New York Stock Exchange",
                "timezone": "America/New_York"
              },
              "hoursNote": null,
              "regularHours": {
                "close": "16:00",
                "open": "09:30"
              },
              "sources": [
                "https://www.nyse.com/markets/hours-calendars"
              ],
              "specialSessions": [
                {
                  "close": "13:00",
                  "date": "2026-11-27",
                  "name": "Day after Thanksgiving",
                  "open": "09:30",
                  "weekday": "Friday"
                }
              ],
              "tradingDays": 250,
              "year": 2026
            },
            "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": {
                    "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"
                    },
                    "year": {
                      "description": "Year, e.g. 2026. Optional, default: current year.",
                      "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": "2026-10-19T12:04:22.667Z",
    "quality": {
      "l30DaysTotalCalls": 5,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-19T12:04:22.305Z"
    },
    "resource": "https://handelskalender-api.pages.dev/v1/trading-calendar",
    "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 plans ahead and needs every closure of a stock exchange for a whole year: holiday names, half days, late openings, regular hours, count of trading days. 28 exchanges incl. NYSE, Nasdaq, LSE, Xetra, Euronext, SIX, Tokyo, HKEX, Shanghai, ASX. Official exchange calendars only; bad input or uncovered year: HTTP 400, no charge."
}

What the leaf hashes

{"body":"44efe42bcf7dee6b9313cbc1cdab1f8bb4e2054ebc6e596dc492b5e1bad87e82","id":76194,"kind":"listing","method":"baseline/1","observed_us":1793025491764615,"prev":null,"subject":"x402_bazaar:https://handelskalender-api.pages.dev/v1/trading-calendar","subject_kind":"source_record"}

Proof

Fold these into the leaf in order, hashing each sorted pair with keccak256, to reach the root of 2026-10-26 (296695 rows).
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Day root: 0xf43e8dcc3d451a4788b26be904c55e8c4c0fa75c9666796c51db38d37e2c0df8
Chained: 0x702d5ac508f08b0d1accf36af25822d8e5660367494edd17a642fb61e158a57a
Published: On Arc Testnet, block 69251483: 0x495162f8936e19f0039918feebe6c307f327cd6bf8c37219620b1970041fa9ae

How to check it · This row as JSON