Powpeg is a proof-of-work secured two-way peg
used to interact between the RSK sidechain and the Bitcoin blockchain. Powpeg is the first Bitcoin peg to provide security assurances based on Bitcoin's
proof-of-work, making it the most secure and permissionless peg available today.
In the Powpeg, no single entity, or group, has the power to unilaterally
perform peg-out operations, not it can control the peg or selectively censor
peg-outs. There are already ten high-profile companies
participating on RSK to provide support to Powpeg.
The RSK community is developing additional technologies
to further improve and decentralize the peg, including the addition of HSM attestation,
reduced peg-in and peg-out times, cross-blockchain contract calls, and safety systems such
as a time-locked emergency federation.