Show that nothing changed PROOF
Record what a set of files was, down to the byte, and check later that it still is. Hand the record to the other side and they can confirm what they received.
1 · The files
No files chosen yet. Nothing is uploaded; every hash is computed here.
How it works
A hash proves the content is identical. On its own it does not prove when the file existed, so the date on the record needs its own evidence to be checkable. Your files are not uploaded.
Doing this often? The OBSCURA Sovereign Suite keeps every piece of evidence hashed, dated and tied to its controls, and watches a folder for any change. On its own, US$4 a month; with everything else, US$9 a month or US$79 a year. 7 days free.