The Oasis compute layer supports multiple parallel runtime, or ParaTime, environments which allows Web3 developers to build decentralized applications on any existing runtime or even launch their own. Unique ParaTimes can be developed in isolation to meet the specific requirements of any application, including privacy parameters, staking requirements, development language and more.
Three separate ParaTimes already run on Oasis: Sapphire, Emerald and Cipher.
Sapphire is the first confidential EVM-compatible runtime. Sapphire provides developers with the unique capability to build EVM-based on-chain dApps with smart contracts that are completely confidential, completely public, or anywhere in between on the spectrum of confidentiality. Sapphire is a groundbreaking developer environment that offers a familiar building environment for any EVM developers with the added benefits of Oasis Smart Privacy technology.
Emerald is a runtime built on Oasis that offers full EVM compatibility and high-performance scalability. Emerald was engineered to solve two key problems faced by every Web3 developer: gas fees and cross-chain interoperability. Using the Emerald runtime, developers can build with confidence that their users will not suffer performance lags or surprise congestion.
Cipher is a WebAssembly (WASM)-based privacy-enabled runtime built on Oasis. With Cipher and the Oasis Contract SDK, developers can use Rust to build the next generation of confidential dApps.
But accessing the power of Sapphire is not limited to native Oasis developers. With the Oasis Privacy Layer framework, Oasis brings the power of Sapphire privacy to all of Web3. Crypto developers can seamlessly add Oasis privacy to their existing dApp on any EVM network without having to migrate their application and users away from their native blockchain.
For native builders and users of the Oasis Network, there is a suite of tools that support a seamless experience monitoring and transacting on the network.
Oasis Wallet is the official non-custodial wallet for storing, sending and receiving digital assets on the Oasis Network. With the successful deployment of Oasis Safe by ProtoFire on Sapphire and a partnership with Transak, Oasis users also have access to an industry-leading custody options and easy on-ramps for the Oasis ecosystem.
Oasis Explorer provides an easy-to-use deep dive into on-chain activity from Oasis users and developers. By surfacing powerful data and analytics across all Oasis runtime environments, the Explorer queries data for users to analyze the growth and development of Oasis.
Oasis Nexus is the official indexer tool for the Oasis Network and the backend for explorers and wallets. Nexus continuously fetches blockchain data from one or more Oasis nodes, parses the data and stores it into a heavily indexed SQL database, which provides a JSON-based web API to access the data.