Signed with the key of Horms which can be found on key servers as id 0x05410E97 To verify the signature using gpg run: gpg --verify checksums.asc checksums To generate the checksums, use the md5sums and sha1sums commands MD5 Checksums: 85ff78a330f5fd8dd0b4487750b10c63 heartbeat-2.1.1.tar.gz SHA1 Checksums: 521ecc32e0bbb2f8749ee052ee642325edfecd8a heartbeat-2.1.1.tar.gz