Verifiable multi-variable randomized draw system

Abstract

This invention relates to a verifiable multi-variable random selection system, which achieves fairness, reproducibility, and tamper resistance of selection results through multi-source seed generation, hash chain-based data encapsulation, and a replayable verification module. The system supports user-interactive input, mode switching, result packaging, and offline verification, making it applicable to scenarios such as ticket distribution, fair lotteries, educational grouping, and Web3 governance. Compared to traditional PRNGs, CSPRNGs, or blockchain-based VRFs, the system offers low latency, high scalability, and does not rely on centralized trust points. It is particularly suited for open and high-trust environments where outcomes are determined by probabilistic allocation mechanisms.

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