Justin Berman

BuilderCrypto

Justin Berman works full time on Monero, the largest privacy-focused digital currency. He leads the integration of Full-Chain Membership Proofs, a change that proves a spend belongs to the entire set of past outputs rather than to a small ring, and he ran the 2025 contest that optimized the two cryptographic libraries the design needs. Monero users pay for his work directly, through the project's crowdfunding system, and they have funded thirteen of his proposals in a row.