You can verify the authenticity of a document signed in the service at:
​https://app.docue.com/verify

Content e-signed and archived in the Docue archive can't be edited, meaning it's always the original.

If the document is amended when some signatures are missing, all signatures already made will be deleted. This way, the document can't be changed after you've signed it.

A 256-bit HASH has been calculated from each document after all signatures have been collected. The hash is stored on the server with the document and can be used to detect changes to the document after it has been signed. In other words, we can use HASH to check the authenticity after the fact and verify that the document was created with Docue. All documents are stored encrypted on our server. The service provider has no access to the documents without permission.