Open source blockchain platform Waves will release Gravity Hub, an interoperability protocol

The open source blockchain platform Waves is about to launch Gravity Hub, a blockchain-agnostic protocol designed to solve interoperability issues. It will also act as a data oracle, feeding data from the outside world into the blockchain. Gravity Hub is essentially a blockchain without any tokens, but can communicate with other blockchains such as the Waves platform, Waves Enterprise or Ethereum.