Next-generation Private Multisignature Wallets

The talk will give an overview of the technology enabling the next generation of Bitcoin wallets, with a focus on time-locked multi-signature schemes. Today Bitcoin users are generally left facing a trade-off between more privacy-focused single-sig wallets and more secure multi-signature wallets that are either fully custodial or depend on centralized servers.

Working with non-standard Bitcoin scripts today requires a lot of knowledge and expertise, and only a few organizations can afford the research required to successfully integrate them into their products.

The advent of tools and libraries designed to work with descriptors and Miniscript will significantly lower the entry barrier and risk involved with handling complex spending policies, empowering developers and amateurs to build more private and safe Bitcoin wallets.

The talk will also briefly explain the "Taproot" proposal and show how it can further improve the privacy and scalability of such wallets.