Need help with PGP signature verification

[Tom Browder <tom.browder@gmail.com>]

I'm willing to trust published PGP key fingerprints for signers of Rakudo downloadable files.

Question:  How can I get the fingerprint from the downloads? 

The products I download are (1) the file of interest, (2) a PGP signed checksums file with various shaX hashes for the file, and (3) a separate file containing a PGP signature.

Thanks so much.

-Tom