singularity-verify(1)

NAME

apptainer-verify - Verify digital signature(s) within an image

apptainer verify [verify options...]

The verify command allows a user to verify one or more digital signatures
within a SIF image.

Key material can be provided via PEM-encoded file, or via the PGP keyring. To
manage the PGP keyring, see 'apptainer help key'.

-a, --all[=false]
verify all objects

--certificate=""
path to the certificate

--certificate-intermediates=""
path to pool of intermediate certificates

--certificate-roots=""
path to pool of root certificates

-g, --group-id=0
verify objects with the specified group ID

-h, --help[=false]
help for verify

-j, --json[=false]
output json

--key=""
path to the public key file

--legacy-insecure[=false]
enable verification of (insecure) legacy signatures

-l, --local[=false]
only verify with local key(s) in keyring

--ocsp-verify[=false]
enable online revocation check for certificates

-i, --sif-id=0
verify object with the specified ID

-u, --url=""
specify a URL for a key server

  Verify with a public key:
  $ apptainer verify --key public.pem container.sif
  Verify with PGP:
  $ apptainer verify container.sif

22-Sep-2026 Auto generated by spf13/cobra