Internal Program Version: lzip 1.25 (The man files)

Lzip is a lossless data compressor based on the LZMA algorithm, with very safe
integrity checking and a user interface almost identical to the one of bzip2.
Lzip is only a data compressor, not an archiver. It has no facilities for
multiple files, encryption, or archive-splitting, but, in the Unix tradition,
relies instead on separate external utilities such as GNU Tar for these tasks.

http://lzip.nongnu.org/lzip.html