Attestations for
  ghcr.io/boks-sh/openssh-add@sha256:46100916e5ef953c0a64b41cc8364f1df0063142e2e1989c6922b6f5a5b9f88a

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/openssh-add@sha256:46100916e5ef953c0a64b41cc8364f1df0063142e2e1989c6922b6f5a5b9f88a

=== cyclonedx ===================================================
  (no attestation matches the document published now -- 0 older one(s) are attached)

=== slsaprovenance ==============================================
  (no attestation matches the document published now -- 0 older one(s) are attached)