Proving ownership of copyrighted material through traditional means such as applying for a patent is expensive and involves third parties in most jurisdictions around the world. The Bitcoin.com Notary tool is an alternative that can do that at very little cost and without the need to reveal the information you want to protect.
Prove a Document’s Existence Without a Third Party
With the Bitcoin Cash Notary service users can create a timestamped proof of a document’s existence without trusted third parties. A cryptographic digest of the document, which can also be a photo or video file, is stored in the Bitcoin Cash (BCH) blockchain, linking it to the time of submission. The tool acts like a digital record book that facilitates the verification of documents at a later stage.
The Notary provides you with a trustless automated solution for backing up all kinds of important information. It allows you to prove its existence by comparing the blockchain entry to your actual document and also in case the official version goes missing. At the same time, the contents are never exposed or stored on the blockchain.