- 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
- 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.