VITARIT: Paying for Threshold Services on Bitcoin and Friends
Easwar Vivek Mangipudi, Sri AravindaKrishnan Thyagarajan, Pratyay Mukherjee, Lucjan Hanzlik, Aniket Kate
IEEE Symposium on Security and Privacy 2025 · Day 2 · Blockchain II
In the rapidly evolving landscape of Web3, the demand for decentralized services, such as verifiable random functions (VRFs) and oracles, has surged. These services are critical for maintaining the integrity and autonomy of blockchain applications, often relying on a collective of independent entities to provide robust and censorship-resistant functionality. However, the existing paradigms for integrating these services, particularly through smart contracts, face significant limitations, including privacy concerns due to exposed data, computational inefficiencies from on-chain verification, and a fundamental incompatibility with non-Turing complete blockchains like Bitcoin. This talk introduces VITARIT, a novel protocol designed to overcome these challenges by enabling atomic, privacy-preserving, and Bitcoin-compatible payments for distributed verifiable threshold services.