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Bitcoin Layer 2 & Scaling

Solutions for scaling Bitcoin's throughput and enabling more complex applications.

Lightning Network

Topic Description
Lightning Network Instant, low-cost Bitcoin payments
Payment Channels Bidirectional off-chain channels

Scaling Technologies

Project Description
BitVM Turing-complete computation on Bitcoin
Stacks Smart contracts secured by Bitcoin
RSK EVM-compatible Bitcoin sidechain
Liquid Network Blockstream's federated sidechain
CKB Nervos common knowledge base

Bitcoin L2 Projects

Project Description
BOB Build on Bitcoin hybrid L2
Citrea ZK rollup on Bitcoin
BEVM EVM-compatible Bitcoin L2
Merlin Bitcoin L2 with ZK proofs