Attestations for
  ghcr.io/boks-sh/php@sha256:e03b946ea6389f2b34ca98e6e1034d52698f9336d1d973e3149f8c049cc11f22

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/boks-sh/php@sha256:e03b946ea6389f2b34ca98e6e1034d52698f9336d1d973e3149f8c049cc11f22

=== 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)