DRA

Daniel Krawisz and Paul Sztorc talk Drivechain

November 15, 2017Original source

On November 15, 2017, Daniel Krawisz spoke with Paul in a 43-minute video covering Drivechain, sidechains, Blind Merged Mining, miner incentives, Lightning interoperability, and Bitcoin experimentation.

Highlights

Key Takeaways

Drivechain's Purpose

Paul frames Drivechain as a simple sidechain design that lets Bitcoin users access the freedom usually associated with altcoins while continuing to use the same 21 million bitcoins. The discussion traces the idea from his prediction markets work, where application progress outpaced available sidechain infrastructure, into a broader architecture: keep Bitcoin's base chain conservative, decentralized, and secure, while letting separate sidechains carry experiments with different rules, block sizes, applications, and tradeoffs.

Blind Merged Mining

The conversation explains Blind Merged Mining as a way for Bitcoin miners to receive sidechain transaction fee revenue without running each sidechain's full software. Sidechain operators assemble blocks and bid through mainchain Bitcoin transactions, while miners can passively accept payment in the asset they already mine. This preserves merge-mining benefits while avoiding the operational burden of running many independent codebases, making high-bandwidth or specialized sidechains easier to support without pushing extra software requirements onto miners.

Slow Withdrawals And Incentives

Paul describes Drivechain withdrawals as deliberately slow, public, and easy to inspect: sidechain withdrawals are batched, identified by hashes, and acknowledged over long periods by miners. That design gives users, miners, and sidechain nodes time to compare what the sidechain says should happen with what the mainchain is preparing to release. The broader point is economic alignment: sidechains can add utility and fee demand to Bitcoin, while miners have strong incentives to preserve the value of Bitcoin and the sidechain ecosystem that expands its use.