DeepVault Extension works on the DeepOnion Blockchain. DeepVault allows people to register and verify files within the blockchain, making easy to detect if a file or document has been altered or changed since it has been registerd by the owner. Your files never leave your computer and are never uploaded to our server. Your browser processes the data. DeepVault is an Online Notary service that uses an advanced hashing process and file verification process. The hashing process used is the secure and trusted SHA-256 algorithm.