Proof of Existence Is Not Proof of Ownership - Thoughts of a Bohemian
While Blockchain registration is all the craze, Joe Naylor form ImageRights explain how proof of existence, however secure, is not a valid claim of copyright ownership.
via Thoughts of a Bohemian: http://blog.melchersystem.com/proof-of-existence-is-not-proof-of-ownership/
There is a dangerous movement afoot; the idea that registration of your images on the blockchain is a cheap and simple alternative to registration with the United States Copyright Office. It is not.