CitePulse Reference Checker

{
  "type": "json",
  "errors": {
    "400": {
      "example": {
        "error": "invalid request"
      },
      "description": "Invalid or missing parameter(s). Returned before the payment gate on paid requests, so a malformed call is never charged. JSON body: { error: <what is wrong and how to fix it> } plus usage hints."
    },
    "402": {
      "description": "Payment required — x402 v2 challenge; the accepts array lists scheme, network, and amount. Retry the same request with a PAYMENT-SIGNATURE (v2) or X-PAYMENT (v1) header. Verification is free."
    },
    "500": {
      "example": {
        "error": "upstream_failed"
      },
      "description": "Unexpected server error. If a payment settled without a usable result, contact info@theaslangroupllc.com with the settlement tx hash for a re-run or credit."
    }
  },
  "example": {
    "checked": 3,
    "results": [
      {
        "input": "10.1016/S0140-6736(97)11096-0",
        "verdict": "retracted",
        "confidence": 0.98,
        "retraction": [
          {
            "date": "2010-02-06",
            "type": "retraction",
            "source": "retraction-watch",
            "notice_doi": "10.1016/s0140-6736(10)60175-4"
          }
        ],
        "is_retracted": true
      }
    ],
    "verified": 1,
    "not_found": 1,
    "retracted": 1
  }
}