Drivechain is a project that seeks to leverage sidechain technology in order to introduce additional functionality to Bitcoin. The project aims to achieve this by using pegged sidechains, which would allow any individual to move their bitcoins to a variety of pegged blockchains. This would result in a scenario in which one would be able to move their bitcoins to, for example, a pegged sidechain that supported smart contract technology, or a pegged sidechain that employed privacy technology such as ring signatures. The relationship between the mainchain (which would be the Bitcoin blockchain) and the pegged sidechains is that transferability of bitcoins would be bidirectional. Thus, one would be able to transfer their bitcoins from the mainchain to a pegged sidechain and back. The Drivechain project hopes to give bitcoin holders access to new and innovative cryptocurrency systems using the asset that they already own, bitcoin.