MEMBER ACTIVATION — numbers / encrypted ID cards

Activation is exactly-once per application. Member numbers are reserved uniquely and never used as document IDs. ID cards are vault-encrypted with opaque QR tokens — owner authenticated stream only; no public URLs. Missing number format or template blocks activation.

Public CASA membership number

Identity model

Every person keeps a permanent internal UUID. The public CASA membership number is separate, server-generated, and uniqueness-constrained.

Per-country public prefixes

CountryPrefixExample