Checksum Checker

Software for Digital Preservation

Download version 3.0.1, released 25 March 2014 AEST

Checksum Checker is free and open source software developed by the National Archives of Australia. Checksum Checker is a piece of software that is used to monitor the contents of a digital archive for data loss or corruption.

Checksum Checker is a component of the Digital Preservation Software Platform (DPSP).


As part of the Digital Preservation Recorder (DPR) workflow, checksums are generated for each Archival Information Package (AIP). Checksum Checker generates a new checksum for each AIP and compares it against the stored checksum. If the checksums do not match, then the AIP is flagged as being corrupt.

Checksum Checker incorporates the following features:

  • Checksum Checker functions as a service.

  • Checksum Checker sends automated emails to a nominated administrator email address, coinciding with certain events (such as the start of a checking run or when an error is encountered).

Checksum Checker is released under the GPLv3, and is available for download.