Parity trace scan
A parity trace scan was a method to reconstruct computer logs that had been lost.

In 2371, B'Elanna Torres ran a parity trace scan on the sensor logs of Chakotay and Tuvok's shuttlecraft, revealing that the logs had been erased, not damaged by an attack as Tuvok had claimed. ()

de: Paritätsspurenscan
Scans