kubectl apply -f https://storage.googleapis.com/tekton-releases/chains/previous/v0.21.1/release.yaml

REKOR_UUID=24296fb24b8ad77af3a8dfba0b4149ff8cd32f3d134dd934f7ef9a8a3b1f757da722884329a5e502
rekor-cli get --uuid $REKOR_UUID --format json | jq -r .Attestation | jq .

RELEASE_FILE=https://storage.googleapis.com/tekton-releases/chains/previous/v0.21.1/release.yaml
REKOR_UUID=24296fb24b8ad77af3a8dfba0b4149ff8cd32f3d134dd934f7ef9a8a3b1f757da722884329a5e502

# Obtains the list of images with sha from the attestation
REKOR_ATTESTATION_IMAGES=$(rekor-cli get --uuid "$REKOR_UUID" --format json | jq -r .Attestation | jq -r '.subject[]|.name + ":v0.21.1@sha256:" + .digest.sha256')

# Download the release file
curl "$RELEASE_FILE" > release.yaml

# For each image in the attestation, match it to the release file
for image in $REKOR_ATTESTATION_IMAGES; do
  printf $image; grep -q $image release.yaml && echo " ===> ok" || echo " ===> no match";
done