$ skopeo copy oci-archive:/var/lib/mock/f42-flatpak-container-build-59178772-6571541/root/chroot_tmpdir/tuxmath-flatpak-2.0.3-7.x86_64.oci.tar docker://candidate-registry.fedoraproject.org/tuxmath:f42-flatpak-container-build-132086454-x86_64-20250428224756
Getting image source signatures
Copying blob sha256:b11cf42abcbcad1bab792ab73cc0ff79b6e493c0f468df1ee4c4f154bfa56dcc
Copying config sha256:fcb5cc02afd99b98695cf44b6e1b63dd6758d4a075efb01c07919a012d0d2483
Writing manifest to image destination