zkλ (formerly known as zk-Lokomotive) is a research and development team focusing on zero-knowledge proofs and the creation of ZK-based applications across various blockchain networks, with a primary emphasis on Solana. Their flagship project, zk-lokomotive, is a zero-knowledge proof-based file transfer system designed for seamless operation across multiple blockchain networks, including EVM-compatible chains, Solana, and Sui. The system leverages advanced cryptography, decentralized storage solutions like IPFS and Arweave, and the Wormhole protocol for cross-chain interoperability to facilitate secure, private, and efficient file transfers in a trustless environment.