Decentralized threshold signature scheme for cross-chain notary identity authentication

This research paper presents a decentralized threshold signature scheme, which is a cryptographic method where multiple parties must cooperate to create a valid digital signature without any single party having complete control. The scheme is designed for cross-chain notary identity authentication, meaning it helps verify identities and transactions that move between different blockchain networks. The approach aims to improve security and trust in decentralized systems by distributing the signature-creation responsibility across multiple participants.