A term used to denote a very basic level of preservation of digital resource as it was submitted( literally preservation of the bits forming a digital resource). It may include maintaining onsite and offsite backup copies, virus checking, fixity-checking, and periodic refreshment to new storage media. Bit preservation is not digital preservation but it does provide one building block for the more complete set of digital preservation practices and processes that ensure the survival of digital content and also its usability, display, context and interpretation over time.
Definition by https://www.dpconline.org/handbook/glossary
