There is a project that wants to connect the ETHEREUM BLOCKCHAIN with Bitcoin so they can interoperate, it is called Bitone Network (It reminds me of Ethereum in its beginnings), it seems that they are going to start pre-sale of tokens in a few weeks and it is going unnoticed
Sounds like someone is trying to promote an ICO project

There are multiple projects connecting various blockchains through various means. As you'll notice on our roadmap, we have bitcoin lending coming up, so we're well aware of the various possibilities.