UTXO Domain Name System (UTXO-DNS): A Distributed Domain Name System Based on the Blockchain UTXO Model

This document defines the UTXO Domain Name System (UTXO-DNS), a distributed domain name system based on the blockchain Unspent Transaction Output (UTXO) model. UTXO-DNS provides a decentralized domain name resolution mechanism supporting the registration, resolution, and management of both global and region-specific domain names. The system adopts a hierarchical naming structure compatible with the existing DNS while ensuring domain name ownership proof and tamper-proof characteristics through blockchain technology. This protocol extends the traditional DNS protocol by introducing a blockchain-based domain name ownership verification mechanism, supporting internationalized domain names, digital currency address records, and decentralized identity records, among other new features.