parchive is obviously not maintained anymore. I am orphaning the
package. Please only adopt if you can afford the time for it.

Description: PAR files reconstruct missing parts of multi-part archives
This utility applies the data-recovery capability concepts of RAID-like
systems to the posting and downloading of multi-part archives on USENET
by providing the ability to create and use redundant recovery records.
It supports the 'Reed-Soloman Code' implementation that allows for
recovery of any 'X' volumes for 'X' parity volumes present.  It is
popularly used on USENET postings, but is not limited to this use.