REKOR_UUID=a738563a98478da2c67936408825a60e8e67502e462938be8e42535f97ff9bfd
rekor-cli get --uuid $REKOR_UUID --format json | jq -r .Attestation | base64 --decode | jq

RELEASE_FILE=https://storage.googleapis.com/tekton-releases/pipeline/previous/v0.31.3/release.yaml
REKOR_UUID=a738563a98478da2c67936408825a60e8e67502e462938be8e42535f97ff9bfd

# Obtains the list of images with sha from the attestation
REKOR_ATTESTATION_IMAGES=$(rekor-cli get --uuid "$REKOR_UUID" --format json | jq -r .Attestation | base64 --decode | jq -r '.subject[]|.name + ":v0.31.3@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