RezTally
Check a day log
Open a day log exported from RezTally to confirm that no entry in it has been changed, added or removed since it was recorded. The file is checked here in your browser and never uploaded.
Choose the exported file
or drop it here (a .json file)
How it works: every entry in the log carries a fingerprint (SHA-256) of its own contents and of the entry before it. This page recalculates each fingerprint. If any entry was edited, removed or reordered, its fingerprint no longer matches and the page shows where.
What a check proves: that the entries are the ones the app recorded, unchanged and in order. It can't prove that what was recorded is true; a phone carried by someone else or a faked location would be sealed just the same. The summary and the table of days are shown as the file states them, and the time-stamp signatures are not checked here (use openssl ts -verify on the token in the file).