Attestations for
  ghcr.io/boks-sh/grype@sha256:fce66461589e0f4c1832f7535e5044f0706cedd1eaaef10f76c2bb6ead586a49

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/grype@sha256:fce66461589e0f4c1832f7535e5044f0706cedd1eaaef10f76c2bb6ead586a49

=== 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)