EOS.IO software is designed to facilitate inter-blockchain communication. This is achieved by making it easy to generate proof of Action existence and proof of Action sequence. These proofs combined with an application architecture designed around Action passing enables the details of inter-blockchain communication and proof validation to be hidden from application developers, enabling high level abstractions to be presented to developers.

Thanks, I also using some part of this into my article about general of Blockchain here: https://bit.ly/2yZoiC0
Please accepts!