Mine Labs, a New York-based blockchain startup has announced the development of Mediachain, a Bitcoin blockchain-based decentralized metadata protocol which relies on the InterPlanetary File System (IPFS) to protect and ensure the rights to creative digital works.
Since early 2015, emerging blockchain startups have begun to focus on the development of blockchain-based identity and authentication systems to assist artists, freelancers and digital content providers to protect their work from being plagiarised. To encrypt and store digital rights on the Bitcoin blockchain, most of these blockchain startups have either encoded an ID into the Bitcoin blockchain using OP_RETURN or CoinSpark to reference centrally hosted data or used a custom-built blockchain to attach metadata directly to transactions.
https://bitcoinmagazine.com/articles/mediachain-protect-digital-content-with-a-bitcoin-based-metadata-protocol-1458577763
