Evidence row 526927

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://handelskalender-api.pages.dev/v1/market-status"
    ]
  ],
  "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 right now which stock exchanges are open: open, lunch break, pre-market, after-hours or closed (with holiday name), local time, exact next open and close in UTC. One call checks up to 28 exchanges (default all) incl. NYSE, Nasdaq, LSE, Xetra, Euronext, Tokyo, HKEX, Shanghai, ASX. Official exchange calendars only; unknown exchange: HTTP 400, no charge.",
    "extensions": {
      "bazaar": {
        "info": {
          "input": {
            "method": "GET",
            "queryParams": {
              "exchanges": "XNAS,XETR"
            },
            "type": "http"
          },
          "output": {
            "example": {
              "checkedAt": "2026-10-08T15:45:00.000Z",
              "exchanges": [
                {
                  "holiday": null,
                  "isTradingDay": true,
                  "localDate": "2026-10-08",
                  "localTime": "11:45",
                  "mic": "XNAS",
                  "name": "Nasdaq Stock Market",
                  "nextClose": "2026-10-08T20:00:00.000Z",
                  "nextOpen": "2026-10-09T13:30:00.000Z",
                  "status": "open",
                  "timezone": "America/New_York"
                },
                {
                  "holiday": null,
                  "isTradingDay": true,
                  "localDate": "2026-10-08",
                  "localTime": "17:45",
                  "mic": "XETR",
                  "name": "Xetra (Deutsche Börse, Frankfurt)",
                  "nextClose": "2026-10-09T15:30:00.000Z",
                  "nextOpen": "2026-10-09T07:00:00.000Z",
                  "status": "after-hours",
                  "timezone": "Europe/Berlin"
                }
              ]
            },
            "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": {
                    "exchanges": {
                      "description": "Comma-separated MIC codes or names, e.g. XNYS,XETR,XTKS. Optional, default: all exchanges.",
                      "type": "string"
                    }
                  },
                  "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": "2026-10-27T10:07:54.636Z",
    "quality": {
      "l30DaysTotalCalls": 4,
      "l30DaysUniquePayers": 3,
      "lastCalledAt": "2026-10-27T10:07:54.336Z"
    },
    "resource": "https://handelskalender-api.pages.dev/v1/market-status",
    "serviceName": "Exchange Trading Calendar",
    "tags": [
      "stock-exchange",
      "market-status",
      "market-hours",
      "is-market-open",
      "pre-market"
    ],
    "type": "http",
    "x402Version": 2
  },
  "source": "x402_bazaar",
  "summary": "Use when an agent needs to know right now which stock exchanges are open: open, lunch break, pre-market, after-hours or closed (with holiday name), local time, exact next open and close in UTC. One call checks up to 28 exchanges (default all) incl. NYSE, Nasdaq, LSE, Xetra, Euronext, Tokyo, HKEX, Shanghai, ASX. Official exchange calendars only; unknown exchange: HTTP 400, no charge."
}

What the leaf hashes

{"body":"60bceba849e68452282b9439f12a8ea3db21240d21c9bbdff80d944e3c0073b3","id":526927,"kind":"listing","method":"sync.x402_bazaar/1","observed_us":1793124792428632,"prev":451994,"subject":"x402_bazaar:https://handelskalender-api.pages.dev/v1/market-status","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. 0x5574cdbe63c01e9d1e42eeb6a2269d9f5947ddb43ff2cfceda9c2d633dbbaf18
2. 0x7b416e56ba34f5d9cac1f57914bbd5388404181f4a5255dedc74bd24db40297f
3. 0x9c0c0ca7909da848e09ba3b53ebc87a0adf552a5c90f630a5f86693dc4395ca3
4. 0x9d06e184eb7718c3485196329a5462e3c70d07065fddd0e453db7e484633c4c1
5. 0x9726a10c771242ebc1fad6a6cf2ca752196524a795ed2296d215afd7361892c8
6. 0x40ae643508fb64103759d0aa70e683eff04d193d52ca9a300a14a923207c211b
7. 0x3c121c989f536513fbcd0a60be1d8e8353f06c86609daa9e5d81f747215e203a
8. 0xa064929f67ef2af42048c23c35dfe6b1f8dd45b96c69ce4fc8ab4f810ac8375f
9. 0xb16d5b90723b0462d9a78e20eb077725d68ae0e69de108082cfb78b5affb7760
10. 0x2250983ab1b8dac7279c6d7631fe386cd95b31391cec4a472df9864e9e8abf31
11. 0x70cbb36b38089bd590d59988369200459112eeb685a3d047dc7d6f85d72f0b65
12. 0xbda8a72c454627630518fefedac1e595455f868382eb4add82d53de75ccbae18
13. 0x906b5f0e8ef1fe7894886d84f460bb3239d5f14b14ad4adff27c7dcea6265169
14. 0x674bc1173d39130be4d15bbfc7327f8a8af87eb251e54c8d4409c7e840b9e538
15. 0xb78ea6a255dd06e2f402a1a733bca392fa6243920bcba95e8b80bdfc6ce5f553
16. 0x3ed50f053eca72dfd3a9d45a11935240bfe691e57835c367ddebe2cbc49efe9d
17. 0x0e01aa9525097570a6edaf32bfc959de57bf5c24317cf10c0716affea85ca60d
18. 0xa20d48798a34aba12eb9c7297722982d910f06c148f5e27ac59307422964a585
19. 0x9fc354c0ea3efc3f1b6548bb77ea902a50f2c9647647ea61592efce2bd795699

Day root

0xdd77e5e99da32c3f154180d63e3c3e6fe11e896a2c6896412ef6b5c4bcf7e795

Chained

0x23bb4dfd09f55c15ac3962f53578e02c6114d5bfd9bb451cf8794fb6e2817ef4

Published

On Arc Testnet, block 69414147: 0xb2ebd83aafeb765a0ce66e76aefb133ed06606c98038fd56191e2bcd1dcb77b4