Attestations for
  ghcr.io/boks-sh/xz-utils@sha256:9972fd0990c748556ed90b85b6897d6a2c8b563a79b14b6f83de1499b587a4a3

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/xz-utils@sha256:9972fd0990c748556ed90b85b6897d6a2c8b563a79b14b6f83de1499b587a4a3

=== cyclonedx ===================================================
  (no attestation matches the document published now -- 1 older one(s) are attached)

=== slsaprovenance ==============================================
  (no attestation matches the document published now -- 1 older one(s) are attached)