<ul data-eligibleForWebStory="true">Blockchain technology offers transparency and immutability, but it poses challenges for data privacy and confidentiality.The Oasis Network addresses this issue with its Sapphire runtime and ROFL framework for private and scalable Web3 applications.Transparency vs. privacy dilemma affects sectors like finance, healthcare, and enterprise supply chains.Approaches like pseudonymity, private blockchains, permissioned access, and off-chain solutions have trade-offs.Oasis Sapphire provides confidential EVM runtime with encrypted data storage, web2 authentication tools, and free view calls.ROFL enables interaction with external systems, secure API access, cross-chain dApps, and secure AI computation.Use cases include healthcare data privacy, secure supply chain management, fair randomness in gaming, and more.Oasis Network bridges privacy and transparency through encryption, EVM compatibility, private view calls, and secure off-chain logic.The combination of Sapphire and ROFL unlocks secure, scalable, and composable decentralized applications.Oasis Network sets the stage for a future where blockchain applications can be open, verifiable, and private by default.The article explores the challenges of balancing transparency and privacy in blockchain and how Oasis Network's solutions are reshaping the space.