Certificate Service - Ken Kousen

Try It Out

Generate a sample certificate for yourself to see how it works:

This application generates beautiful, digitally signed certificates of ownership for books or other digital content. Each certificate includes:

The digital signature ensures that certificates cannot be tampered with and provides mathematical proof of authenticity.

POST /api/certificates

Generate a new certificate

Request format

{
  "purchaserName": "Jane Smith",
  "bookTitle": "Tales from the Jar Side"
}

GET /verify-certificate?name=Jane%20Smith&book=Tales%20from%20the%20Jar%20Side&date=2025-04-18

Verify a certificate and view its details

Generate a certificate by sending a POST request to /api/certificates with the required JSON data

Download the resulting PDF certificate

To verify, scan the QR code on the certificate or visit the verification URL directly

Check the certificate's digital signature in Adobe Reader to confirm it hasn't been tampered with