verifying downloaded digests

gistfile1.txt

$ token="$(curl -fsSL "https://auth.docker.io/token?service=registry.docker.io&scope=repository:library/debian:pull" | jq --raw-output '.token')"
nisha@ubuntu ~ $ manifest="$(curl -fsSL -H "Authorization: Bearer $token" -H "Accept: application/vnd.docker.distribution.manifest.v2+json" "https://index.docker.io/v2/library/debian/manifests/sha256:e8bab439d86e39a0f694344ab0c11f77bce1460c13c903c437ee9da69c7b6fa3")"
nisha@ubuntu ~ $ echo $manifest | sha256sum
edb9b33918300be33fb87aa3b451493b94d0290edc9de95caae90f754996d0df  -