3. Blockchain and traceability: the main uses

3.1 Digital proof

The need for traceability has long justified the use of time-stamping solutions. Registered mail with acknowledgement of receipt has been a classic for decades for all sensitive mail. Article 88 of the 2016 French Finance Act has also made it compulsory for all retailers to use cash register systems that generate a digital time stamp for all invoices generated, the primary objective being to combat VAT fraud. From a potentially falsifiable accounting document, the invoice becomes electronic digital proof.

So let's take a small step aside to tackle the underdeveloped subject of digital evidence. As Alice Mornet explains in her article of March 8, 2023