Use their service to anonymously and securely store an online distributed proof of existence for any document.
Proof of Existence is an online notary public service that allows its users to upload digital documents and get them verified by the blockchain without exposing the content. The service is recommended for people with legal training and licensed by the state to authenticate the signing of documents. It uses a distributed computing network to transfer the virtual currency from computer to computer. The benefits of Proof of Existence include anonymity, privacy, and getting a decentralized proof, which cannot be erased or modified by third parties or governments.