Bitcoin Optech

The Operations Technology Group (Optech) works to bring the best open source technologies and techniques to Bitcoin-using businesses in order to lower costs and improve customer experiences.

Contributions

Bitcoin Optech Newsletter #385: 2025 Year-in-Review Special

• Bitcoin Forking Guide
• Private block template marketplace to prevent centralizing MEV
• LN upfront and hold fees using burnable outputs
• DahLIAS interactive aggregate signatures
• Calculating the selfish mining danger threshold
• Fingerprinting nodes using addr messages
• Garbled locks
• Utreexo draft BIPs
• Peer block template sharing
• Differential fuzzing of Bitcoin and LN implementations
• Details about the design of Simplicity

Bitcoin Optech Newsletter #384

• A virtualized secure enclave for hardware signing devices

Bitcoin Optech Newsletter #382

• Motion to activate BIP3

Bitcoin Optech Newsletter #381

• Private key handover for collaborative closure

Bitcoin Optech Newsletter #379

• BIP54 implementation and test vectors

Bitcoin Optech Newsletter #378

• Disclosure of four low severity vulnerabilities in Bitcoin Core

Bitcoin Optech Newsletter #377

• Detecting block template feerate increases using cluster mempool

Bitcoin Optech Newsletter #376

• Continued discussion of block template sharing