sidechains

Rootstock

Smart contracts platform powered by Bitcoin. RSK is the first open-source smart contract platform with a 2-way peg to Bitcoin that also rewards the Bitcoin miners via merge-mining, allowing them to actively participate in the Smart Contract revolution. RSK goal is to add value and functionality to the Bitcoin ecosystem by enabling smart-contracts, near instant payments and higher-scalability.

Blockstream

Blockstream is a startup focused on advancing Bitcoin by developing sidechain technology.