I read about CertifiedData in the The Internet Computer Interface Specification :: Internet Computer
The spec doesn’t talk about actual usage of this piece of info. I don’t see much in the doc either. Is there a recommended usage case / reference implementation somewhere?
My takeaway is that CertifiedData is meant to be the source of verifiability at canister level. It could be a merkle root I guess? Or maybe the hash of latest “block” of a canister owned blockchain?
Hope some light shed on the topic. I’d like to add that, I’m most interested in the recommended implementation of such mechanism in the most cycle-efficient way. Currently I don’t see any material about estimating cycle consumption.