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Mimi's avatar

Estonia has been leaders in this space both with ID and other blockchain cybersecurity

https://e-estonia.com/solutions/estonian-e-identity/id-card/

https://e-estonia.com/solutions/cyber-security/ksi-blockchain/

Tiger William's avatar

PKI using the standard X.509 certificate that all mobile devices and PC's already support would seem the likely technology.

It's possible to assert age and not identity and it's possible without relying on government or private collection and storage of birth date and name.

The Canadian government could mimic the kind of bottom up authentication that "web of trust" systems like OpenPGP and Certification Authorities like CACert already employ. Regular civilians attesting to the minimum age of the subject. Penalties for fraudulent assurance.

I've been an OpenPGP user for thirty years and a CACert Assurer for more than ten years.

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