Content certificate

Check a SynC document

SynC signs the content of a published revision and puts that signature inside the exported file. Drop the file below and this page will check the signature, rebuild the content SynC anchored, and show it to you — all in your own browser.

Drop a file to check it

A verifiable SynC copy carries a signed certificate inside it. Drop the file here, or choose it from your computer.

PDF package · Markdown archive (.zip) · JSON export

Nothing is uploaded

The file is read in this browser and never sent anywhere. No account, no sign-in, and once this page has loaded once, no connection.

Scope

What this checks

SynC certifies the content; the page layout is a convenience view.

It proves
  • The content shown below is byte-for-byte the content SynC anchored for this revision. Altering one character of it would have broken the check.
  • SynC really issued this certificate, for this revision, through a logged export, at the time stated.
  • Which specifications and datasheets the certificate covers — and, for the ones it withholds, that they were part of the same revision.
It does not prove
  • That your copy is correct, current, or the one that governs your project. A copy may be deliberately marked up, superseded, or revised outside SynC.
  • That printed pages match the certified content. A certificate travels inside a file; pages can be edited while the certificate stays genuine. Read the two against each other.
  • Who changed anything, or when.

This is reference information, not a determination of which document governs your project, contract, or transaction, and not professional advice. If your copy and the certified content differ, do not assume either one controls — confirm with the party that issued it.