Aadhaar users can manually darken the Aadhaar number and use the printout with the new QR code for establishing their identity, offline also. For example, when an online shopping delivery is made and the delivery man asks for ID, Aadhaar holder can show him the printed QR code which when scanned (through an updated QR code reader on Aadhaar site) would read non-sensitive information, said a PTI report.
According to a report in the Millennium Post, The new QR code will also ensure that Aadhaar user is genuine and not using any tinkered identification documents. Also, to make Aadhaar information more secure and tamper-proof, it will be signed with UIDAI digital signature. To ensure that the privacy is maintained throughout the verification process, the Aadhaar number is not given out in the entire process, nor is biometrics.