British-Iraqi computer scientist and entrepreneur.
Co-authored "Fraud and Data Availability Proofs" (2019), defining how light clients can verify blockchain data without downloading full blocks.
Co-founded Celestia, a modular blockchain providing data availability as a standalone layer, separating consensus from execution.
His data availability sampling technique uses erasure coding and random sampling to achieve probabilistic guarantees with sublinear bandwidth.
Research at University College London focused on peer-to-peer systems, scalability, and blockchain security.
His work directly informs cyber sync protocols: proving completeness of namespace data without downloading the full graph.