Evidence row 2527

Observed 26 Oct 2026, 14:34 UTC, by baseline/1.

Kind: listing
About: source_record agentic_market:handelskalender-api-pages-dev
Recorded: 26 Oct 2026, 14:34 UTC
Previous row: None: the first of its kind about this subject
Body SHA-256: ab39fb32cf438ed193fe521a7a35af68057f8cece5957989c7bddf7f1cfdc0ae
Leaf: 0x8eb96823c4433b5382e79d042ab6b8ee8f64726d2d2580bf19937acb2167b36e

What was observed

{
  "endpoints": [
    [
      "x402",
      "https://handelskalender-api.pages.dev/v1/market-status"
    ],
    [
      "x402",
      "https://handelskalender-api.pages.dev/v1/trading-calendar"
    ],
    [
      "x402",
      "https://handelskalender-api.pages.dev/v1/trading-day"
    ]
  ],
  "name": "handelskalender-api.pages.dev",
  "owner_address": null,
  "raw": {
    "caip2_networks": [
      "eip155:8453"
    ],
    "category": "",
    "description": "",
    "domain": "handelskalender-api.pages.dev",
    "endpoints": [
      {
        "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.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "XNAS,XETR",
            "group": "query",
            "name": "exchanges",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "3",
          "l30DaysUniquePayers": "2"
        },
        "serviceName": "Exchange Trading Calendar",
        "tags": [
          "stock-exchange",
          "market-status",
          "market-hours",
          "is-market-open",
          "pre-market"
        ],
        "url": "https://handelskalender-api.pages.dev/v1/market-status"
      },
      {
        "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.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "XNYS",
            "group": "query",
            "name": "exchange",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "2026",
            "group": "query",
            "name": "year",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "5",
          "l30DaysUniquePayers": "3"
        },
        "serviceName": "Exchange Trading Calendar",
        "tags": [
          "stock-exchange",
          "trading-calendar",
          "market-hours",
          "holidays",
          "nyse"
        ],
        "url": "https://handelskalender-api.pages.dev/v1/trading-calendar"
      },
      {
        "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.",
        "method": "GET",
        "parameters": [
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "2026-10-26",
            "group": "query",
            "name": "date",
            "required": false,
            "type": "string"
          },
          {
            "default": null,
            "description": "",
            "enumValues": [],
            "example": "XWBO",
            "group": "query",
            "name": "exchange",
            "required": false,
            "type": "string"
          }
        ],
        "pricing": {
          "amount": "0.002",
          "currency": "USDC",
          "maxAmount": "",
          "minAmount": "",
          "network": "eip155:8453",
          "scheme": "exact"
        },
        "providerName": "",
        "quality": {
          "l30DaysTotalCalls": "9",
          "l30DaysUniquePayers": "5"
        },
        "serviceName": "Exchange Trading Calendar",
        "tags": [
          "stock-exchange",
          "trading-calendar",
          "market-hours",
          "holidays",
          "nyse"
        ],
        "url": "https://handelskalender-api.pages.dev/v1/trading-day"
      }
    ],
    "enriched": false,
    "iconUrl": "",
    "id": "handelskalender-api-pages-dev",
    "integrationType": "",
    "isNew": false,
    "name": "handelskalender-api.pages.dev",
    "networks": [
      "Base"
    ],
    "priceSummary": {
      "avgCostBasis": "exact",
      "avgCostPerTransaction": "0.002",
      "currency": "USDC",
      "maxAmount": "0.002",
      "minAmount": "0.002"
    },
    "provider": "handelskalender-api.pages.dev",
    "providerUrl": "",
    "serviceName": "Exchange Trading Calendar",
    "tags": [
      "stock-exchange",
      "market-status",
      "market-hours",
      "is-market-open",
      "pre-market",
      "trading-calendar",
      "holidays",
      "nyse"
    ]
  },
  "source": "agentic_market",
  "summary": ""
}

What the leaf hashes

{"body":"ab39fb32cf438ed193fe521a7a35af68057f8cece5957989c7bddf7f1cfdc0ae","id":2527,"kind":"listing","method":"baseline/1","observed_us":1793025266879784,"prev":null,"subject":"agentic_market:handelskalender-api-pages-dev","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