Actually you do have to store those, as proof (but MUST be destroyed after 10 years). This is very typical in AML (Anti Money Laundering) laws. Good thing ther

Actually you do have to store those, as proof (but MUST be destroyed after 10 years). This is very typical in AML (Anti Money Laundering) laws. Good thing there's, at least EU wide, EUDI (EU Digital Identity Wallet) around the corner which legally allows using cryptographic proofs instead of just storing as much data as possible of the user. This addresses exactly this issue of having to disclose this amount of information solely as proof.