In this episode, we spoke with John Light and Jose Storopoli from Alpen Labs about their project Strata. Strata is a work-in-progress EVM-compatible validity rollup on bitcoin, with the goal of enabling greater privacy and programmability. We go over how a validity rollup like Strata works, the role of bridge operators and sequencers, threat model and failure scenarios, and how you can start testing Strata from their GitHub repo. Full shownotes and links: https://atlbitlab.com/podcast/light-jose-storopoli-strata-privacy-programmability-zk-rollups