Evidence chain of custody

The documented record of when evidence was captured, by what process, and where it has been stored.

An evidence chain of custody is the record showing how a piece of evidence was collected and kept: when it was captured, by what process, where it has been stored, and that it has not been changed since.

For online claims, that means capturing a page before anything else happens, fingerprinting each file, recording the capture time automatically, and storing the files in a private, access-controlled location. TruthRanking records capture time automatically, fingerprints each file, and keeps captures in a private, access-controlled vault.