Attestations for
  ghcr.io/boks-sh/unzip@sha256:85d3eaccd89cbf4d302f967ca9b24d8bf68d2fbf58f6a61b617cc0e784d7c04a

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/unzip@sha256:85d3eaccd89cbf4d302f967ca9b24d8bf68d2fbf58f6a61b617cc0e784d7c04a

=== 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)