# Validated ID Numbers

The script `phi_postprocessing.lua` (see Configure Post Processing) includes steps to validate ID numbers that are found by Eduction. This improves accuracy by discarding results that match the pattern for a valid ID number, but cannot be genuine because they have an invalid checksum. The script increases the score for matches that have a valid checksum, because this is an indication that the match is more likely to be genuine.

The following tables list the entities that are validated.

Unique Device Identifiers (`device.ecr`)
phi/device/udi/nocontext

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