Running Tab

Verify a Running Tab record

Don’t take anyone’s word for it. Drop in a Running Tab record file and this page confirms — right here in your browser, using only math — that every entry is sealed and that nothing was changed, added, removed, or reordered. No account, no server, no trust required.

Drop a Running Tab record file here
or tap to choose the .json file you were sent

How this works. Each entry in a Running Tab record is sealed with a SHA-256 fingerprint that also locks in the one before it — a chain. This page recomputes every fingerprint from the entry’s own contents and checks the chain is unbroken. Change one number and its fingerprint no longer matches; remove or reorder an entry and the chain breaks.

Own a Running Tab ledger? Download your verifiable record and check it here yourself.