SA mock fixtures

sandbox console

Saudi CR / Unified Number Generator. For sandbox format checks only. Generated values may overlap with real ones.

— press generate —

Legacy CR: 10 digits, first 4 = chamber/city (only 1010=Riyadh corroborated; phased out by 2025 unified-CR reform). Unified No.: 10 digits starting 7. No public checksum for either — length+prefix shaped only, not validated.