Brink exists to strengthen the Bitcoin protocol and network through fundamental research and development, and to support the Bitcoin developer community through funding, education, and mentoring.

We support and mentor new contributors to open source Bitcoin development through our fellowship program, and support the work of established Bitcoin protocol engineers through our grants program.

We were founded in 2020 with generous financial support from John Pfeffer and Wences Casares. We are 100% funded by donations from individuals and organizations who wish to support the open source Bitcoin network and protocol.

Subscribe to the Brink newsletter to receive updates on what else we are working on.


Picture of John Newbery

John Newbery


John has been contributing to Bitcoin Core since 2016. He co-founded Bitcoin Optech in 2018 to help Bitcoin companies adopt scaling technologies. He helped organize the bitdevs NYC meetups, the Chaincode Residency programs and the weekly Bitcoin Core PR review club. John co-founded Brink in 2020 to support Bitcoin protocol development and onboard future Bitcoin protocol developers.

Picture of Mike Schmidt

Mike Schmidt


Mike joined the Bitcoin ecosystem in 2018 as a product manager at Blockstream and a contributor to Bitcoin Optech. With Optech, he contributes to the newsletters in addition to organizing and presenting technical content at member workshops. Mike has also contributed to Bitcoin Core by organizing events, assisting in running the taproot review sessions, and performing testing and outreach in the space.


John and Mike serve on the board, along with the following independent board members:

Picture of Dave Harding

Dave Harding

Dave co-wrote the developer documentation in 2014 and 2015. In 2016, he created a section of dedicated to the Bitcoin Core project before joining the startup, where he wrote a series of Bitcoin developer tutorials. Since 2018 he has been co-writing a weekly newsletter for Bitcoin Optech. He joined Brink as a founding member of the board in 2020.