A QR Code is a machine-readable graphic that contains information, typically a website URL. Your ORCID iD QR Code is unique to you, and it links to your public ORCID record.
To use this functionality:
Sign into your ORCID record and click on Get a QR Code for your iD
On the new page, select Click to download your QR code
You will obtain your ORCID iD QR code containing your public record URL. Anyone who scans it with a QR Code reader such as an app on your mobile phone, will be sent to your public ORCID record.