Attestations for
  ghcr.io/boks-sh/bc@sha256:ea35f69bbc90c2d838b10418d279fca29d8f1be6b596ff858f82197a93cb1a8c

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/bc@sha256:ea35f69bbc90c2d838b10418d279fca29d8f1be6b596ff858f82197a93cb1a8c

=== 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)