In this episode of Unchained, host Laura interviews Alexei Zamyatin, co-founder of Build on Bitcoin, Willem Schroé, founder of Botanix Labs, and Orkun Kılıç, co-founder of Chainway Labs. They discuss their respective projects, all of which are focused on developing Layer 2 solutions for Bitcoin.

Zamyatin's Build on Bitcoin is a hybrid Layer 2 that connects to both Bitcoin and Ethereum, aiming to bring innovation back to the Bitcoin ecosystem. Schroé's Botanix Labs is developing a decentralized Layer 2 solution using the ‘Spiderchain,’ which uses a series of multi-signature wallets to secure the chain. Kılıç's Chainway Labs is building Citrea, a zk-rollup on Bitcoin that aims to create a Bitcoin-backed economy.

All three projects are in various stages of development and testing, with BOB’s mainnet launch expected shortly.

Show highlights:

Introduction to Build on Bitcoin (BOB), Botanix, and Citrea: How they aim to innovate and expand Bitcoin's capabilities, including their architectural designs that integrate Ethereum users and work toward decentralization and trustlessness
Security Aspects and Integration Strategies: What the security risks associated with BOB, Botanix, and Citrea are, and strategies to enhance decentralization over time
How these Layer 2s influence Bitcoin fees, and how Botanix's integration can leverage the Bitcoin ecosystem, with insights on the potential of Layer 3s and zk-rollups to transform Bitcoin's utility and fee dynamics
How these projects aim to attract Ethereum users and developers, and the reasons why this may be an attractive opportunity for them
How Runes, Ordinals, and BRC-20s operate on Citrea, Botanix, and BOB
How Bitcoin is always a derivative when it’s not in its Layer 1 and the pros and cons of different bridging solutions
The concept of forward secrecy and how it can help improve security in blockchains
Why Willem believes that Layer 3s are possible and bullish for Bitcoin
How "merged mining” resembles Ethereum’s restaking and why it’s positive for Bitcoin

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Guests:

Willem Schroé, founder of Botanix Labs
Orkun Kılıç, cofounder of Chainway Labs
Alexei Zamyatin, cofounder of Build on Bitcoin

Links

Recent coverage on Unchained of Bitcoin L2s:
Stacks’ Muneeb Ali On Why Bitcoin Is Exciting Once Again

Build on Bitcoin

BOB learning documents
Announcement of mainnet on May 1st.
Unchained: Bitcoin DeFi App Sovryn to Deploy on Hybrid Layer 2 Network Build on Bitcoin
Alexei’s tweet on BitVM/rollups
Alexei went on a retreat with the inventor of BitVM

Citrea

Unchained: Here's What You Should Know About Citrea, Bitcoin's First ZK Rollup
Whitepaper
Orkun Mahir Kılıç’s interview on Unchained Premium
Citrea learning documents
Clementine -Citrea's BitVM Based Trust-Minimized Two-Way Peg Program

Botanix

CoinDesk: Willem Schroé: Building Botanix, a Bitcoin Layer 2 That Brings the EVM to Bitcoin
Botanix and the Future of Bitcoin
Bitcoin Magazine: Spiderchains: A Proof Of Stake Second Layer For Bitcoin
Willem Schroé’s interview on Unchained Premium

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