Attestations for
  ghcr.io/kapsl-sh/ninja@sha256:5d53d12d3b6233b257aa4a7e1056eaf4d2a59806e43adb3f1e0db6ddc95789c7

Verify them yourself:
  cosign verify-attestation --key cosign.pub \
      --type <cyclonedx|slsaprovenance> ghcr.io/kapsl-sh/ninja@sha256:5d53d12d3b6233b257aa4a7e1056eaf4d2a59806e43adb3f1e0db6ddc95789c7

=== cyclonedx ===================================================
  subject   ghcr.io/kapsl-sh/ninja
  digest    sha256:5d53d12d3b6233b257aa4a7e1056eaf4d2a59806e43adb3f1e0db6ddc95789c7
  states    2 component(s) are inside this image
      ninja-build            1.13.2-1                 pkg:deb/ubuntu/ninja-build@1.13.2-1?distro=ubuntu-26
      ninja                  1.13.2-1                 pkg:deb/ubuntu/ninja@1.13.2-1?distro=ubuntu-26.04&up

=== slsaprovenance ==============================================
  subject   ghcr.io/kapsl-sh/ninja
  digest    sha256:5d53d12d3b6233b257aa4a7e1056eaf4d2a59806e43adb3f1e0db6ddc95789c7
  build     https://index.kapsl.sh/buildtype/v1
  builder   https://index.kapsl.sh
  from      2 resolved input(s)
      base-image         ghcr.io/kapsl-sh/kapsl-base-static:latest
      apt-package        pkg:deb/ubuntu/ninja-build@1.13.2-1?arch=amd64
  sbom      sbom.json sha256:6264aa3d05f79e070d7594a72df58c8f...