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[*GtkHash*](https://github.com/tristanheaven/gtkhash) allows you to calculate [[!wikipedia checksum desc="checksums"]]. Checksums can be useful to verify the integrity of a file, for example, if you downloaded it from the Internet.
Navigate to the folder containing the file that you want to calculate the checksum for.
In the <span class="guimenuitem">Properties</span> dialog, click on the <span class="guilabel">Digests</span> tab.
[[!img gtkhash.png link="no"]]
In the <span class="guilabel">Hash Function</span> column of the <span class="guilabel">Digests</span> tabbed section, select the check boxes corresponding to the checksums that you want to calculate.
Click on the <span class="bold">Hash</span> button.
The calculated checksums appear in the <span class="guilabel">Digest</span> column.