Attestations for
  ghcr.io/boks-sh/which@sha256:5f337a0f94b417bb15a9491d05456ff4491931685c869442decdfb6e5dbf87f2

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/which@sha256:5f337a0f94b417bb15a9491d05456ff4491931685c869442decdfb6e5dbf87f2

=== 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)