/usr/ is in signify-openbsd-keys 2018.1.
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..
/usr/share/doc/signify-openbsd-keys/
/usr/share/
/usr/share/doc/
/usr/share/doc/signify-openbsd-keys/changelog.gz
/usr/share/doc/signify-openbsd-keys/copyright
/usr/share/signify-openbsd-keys/
/usr/share/signify-openbsd-keys/openbsd-55-base.pub
/usr/share/signify-openbsd-keys/openbsd-55-fw.pub
/usr/share/signify-openbsd-keys/openbsd-55-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-56-base.pub
/usr/share/signify-openbsd-keys/openbsd-56-fw.pub
/usr/share/signify-openbsd-keys/openbsd-56-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-57-base.pub
/usr/share/signify-openbsd-keys/openbsd-57-fw.pub
/usr/share/signify-openbsd-keys/openbsd-57-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-58-base.pub
/usr/share/signify-openbsd-keys/openbsd-58-fw.pub
/usr/share/signify-openbsd-keys/openbsd-58-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-59-base.pub
/usr/share/signify-openbsd-keys/openbsd-59-fw.pub
/usr/share/signify-openbsd-keys/openbsd-59-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-60-base.pub
/usr/share/signify-openbsd-keys/openbsd-60-fw.pub
/usr/share/signify-openbsd-keys/openbsd-60-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-61-base.pub
/usr/share/signify-openbsd-keys/openbsd-61-fw.pub
/usr/share/signify-openbsd-keys/openbsd-61-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-61-syspatch.pub
/usr/share/signify-openbsd-keys/openbsd-62-base.pub
/usr/share/signify-openbsd-keys/openbsd-62-fw.pub
/usr/share/signify-openbsd-keys/openbsd-62-pkg.pub
/usr/share/signify-openbsd-keys/openbsd-62-syspatch.pub
/usr/share/signify-openbsd-keys/openbsd-63-base.pub
/usr/share/signify-openbsd-keys/openbsd-63-fw.pub
/usr/share/signify-openbsd-keys/openbsd-63-pkg.pub