T​​he PhilSys ✓ (read as Check) is a website that uses public-private key cryptography which allows relying parties to verify the authenticity of the PhilID or the printed ePhilID QR Code. Any computer or mobile device with a camera and internet access can use the PhilSys ✓. Although this method is delivered through an internet website, it qualifies as an ‘offline authentication’ under the Implementing Rules and Regulations of Republic Act No. 11055.