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Rootstock

Rootstock is a Bitcoin sidechain and Layer 2 network that enables EVM-compatible smart contracts and decentralized applications secured by Bitcoin proof-of-work. It provides Bitcoin-native DeFi infrastructure, including rBTC, bridges, developer tools, and ecosystem support for builders, users, and institutions.
Distributed

Union


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Description

Union is a bridge between Bitcoin and Rootstock that uses BitVMX, light-client validation, and independently bonded functionaries to verify cross-chain transfers. It follows a 1-of-n honest assumption and requires valid proofs before BTC can be unlocked, with a modular design intended to support future multi-network interoperability.

Category: Bridge

PowPeg


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Description

PowPeg locks BTC on the Bitcoin blockchain and issues corresponding rBTC on Rootstock for DeFi use; burning rBTC releases the corresponding BTC. Its security model combines Bitcoin proof-of-work authorization, Ledger hardware security modules, protocol-enforced signing rules, public monitoring, and independently operated signers.

Category: Bridge