Sjors Provoost is a Bitcoin Core contributor and the author of Bitcoin: A Work in Progress, a book that explains Bitcoin’s technical development process to a broad audience.

Bitcoin Core

Provoost has been a regular contributor to Bitcoin Core, focusing on wallet functionality, hardware wallet integration, and the development process itself. His contributions include work on descriptor wallets, PSBT (Partially Signed Bitcoin Transactions), and improving the interface between Bitcoin Core and external signing devices like hardware wallets.

Bitcoin: A Work in Progress

Provoost wrote Bitcoin: A Work in Progress to bridge the gap between Bitcoin’s highly technical development process and the broader community of users who want to understand how the protocol evolves. The book covers topics like soft forks, the BIP process, mining, and how changes to Bitcoin Core are proposed, reviewed, and deployed. It has become a recommended resource for anyone wanting to understand Bitcoin development beyond surface-level explanations.

Podcast

Provoost co-hosts the Bitcoin, Pair Programming podcast (formerly Noded) where he discusses Bitcoin Core development, protocol changes, and technical topics in an accessible format.

Background

Provoost is based in the Netherlands and has a background in software development. He is funded through open-source grants to work on Bitcoin Core full-time.