What Sidaxis can doConfirm, and recordTell you whether a live human is present. Tell you whether it is the same human you saw before, using the value derived for you and for nobody else. Record that it happened, and anchor the record so it cannot be rewritten afterwards — not by you, not by us, not by whoever buys us.
What it cannot do, even if it wanted toRebuild a face, or join two recordsProduce anyone’s biometric, because we never received one — the reading happens on the person’s own device and is discarded in the same second. Match the value your bank holds against the value a shop holds, because each is derived against the asking party and we are not a party to that derivation. Move your money, hold your keys, or sign on your behalf.
If acquired, subpoenaed or breachedThe answer is the same three timesA buyer inherits proofs that events happened, not a population’s faces. A subpoena compels what we hold, and what we hold is a hash. An intruder takes the same thing. Your anchored receipts stay verifiable without our cooperation — including if the company stops existing, which is the only version of this promise that is not ours to break.