Check a disclosure bundle
Paste a bundle someone sent you. This page recomputes every commitment in it and tells you what holds and what it could not check.
You do not need this page. A bundle is designed to be checked offline, by you, with no account here and no call to us — that is the whole point of it, and a verifier you have to ask us to run is a verifier you have to trust us about. This page is a convenience for people who would rather click than install something.
What cryptography here does not prove
A holding bundle shows that this content existed, from this source, unmodified, no later than the witnessed time, and ordered after the record before it. It does not show that the source told the truth in the first place. Nothing can: a sensor that reports a wrong reading, signed correctly and anchored promptly, produces a perfect proof of a wrong number.
The answer to that is a second independent author — a counterparty's own record, a bank feed, a customs declaration — not more mathematics.