Research

Things we found out by testing rather than assuming — with the method written down, so you can check whether we got it right.

• 15 August 2026

  Your signed documents have an expiry date on their proof

  Every electronically signed document has a date after which you can no longer demonstrate it was validly signed. We tested whether archive timestamps fix it — they moved the horizon zero days, and 319 days backwards with one authority.

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