About

Last few years: Decentralized credentialing + identity solutions and blockchain-based architectures
Career: scaleable system design, algorithms, and core library/API design and implementation
Life: delighting in the difficult and arcane; math from the cutting room floor; cello

Director Identity and Standards, Centre Consortium
- Building Verite – decentralized identity for Fintech and DeFi
Chair, World Economic Forum Digital Identity Technical Working Group
Associated Editor IET Blockchain

Architect Digital Credentials Consortium at MIT Open Learning
- Multi-university, international effort designing the future of academic credentials.
- Enable interoperable, standards-based credentials that put learners in control of their data.
Co-chair W3C Credentials Community Group
Steering committee Decentralized Identity Foundation
Technical Lead T3 Innovation Network Pilot Project 10, Empowering the American Student and Worker
Guest Editor, IEEE Dawn of the Internet Identity Layer
Board Rebooting Web of Trust

Led design and development of the first open source Decentralized Identifier (DID) method based on the Bitcoin blockchain, called the Bitcoin Reference (BTCR) DID method.
Co-created Blockcerts with the MIT Media Lab.
- Blockcerts is an open-source/open-standard method for anchoring Open Badges to blockchains, improving decentralization aspects of badge verification.
Formerly CTO of Learning Machine (now Hyland), which built a credentialing product based on Blockcerts.
Formerly a developer on the .NET Base Class Libraries team.
- Owned System.Collections, System.IO, and System.Resources namespaces, which involved creating data structures, API design, bug fixes, etc
- Drove cross-cutting features including improving cold start performance, improving tricky interface contracts, and solutions for the MAX_PATH limitation
- Blogged a fair bit on the BCL team blog.
Wrote Learning UML 2.0 back in the aughts.
B.S. in Mathematics from University of Texas at Austin and an M.S. in Applied Math from Cornell.