git-verify-tag - Check the GPG signature of tags
git verify-tag [--format=<format>] <tag>…
Validates the gpg signature created by git tag.
Print the raw gpg status output to standard error instead of the normal human-readable output.
Print the contents of the tag object before validating it.
SHA-1 identifiers of Git tag objects.
© 2012–2018 Scott Chacon and others
Licensed under the MIT License.
https://git-scm.com/docs/git-verify-tag