Does a document in the vault hold up legally in a dispute?

Yes. The vault doesn't just store a file — it preserves its integrity. Every archived document is sealed (digital fingerprint), timestamped and accompanied by its proof file, which lets you demonstrate it hasn't been altered since it was signed.

If it's ever challenged, you can produce the document and its associated evidence, in line with the eIDAS framework. It's that chain — signature + sealing + timestamp + archiving — that gives the document its evidential weight.