/usr/share/signify-openbsd-keys/openbsd-59-fw.pub is in signify-openbsd-keys 2015.1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 | untrusted comment: OpenBSD 5.9 firmware public key
RWSdmaNkytzh6BApmPSNSDLNg26ZaXlY8g/879UvLdo3rjbsby76Eda1
|