[sseth]

I am curious about the "cryptographic hashing technique" being proposed. How does that work? Is it just a hash of the name / dob / other identifying info? Does it somehow include matching faces?

[xxs]

Dunno what's proposed but hashing personal data doesn't work in terms of anonymity, due to the small space of the said data.

In the days of crypto currencies, brute forcing the hashes (imagine names, day of birth, city) is a trivial task.