Unspent Transaction Output (UTXO)

簡介：

An unspent transaction output (UTXO) is the amount of digital currency left over after a cryptocurrency transaction is completed. UTXOs are the fundamental units that make up a cryptocurrency wallet balance and are a key feature of many cryptocurrencies.

主要說明：

An unspent transaction output (UTXO) is a key concept in blockchain technology, particularly within cryptocurrencies like Bitcoin. It represents the amount of cryptocurrency that remains after a transaction has been executed, indicating funds that can still be spent.

When a transaction occurs, it consumes previous outputs as inputs and creates new outputs that can be used in future transactions. UTXOs are essentially the remaining outputs that have not yet been used, making them available for future spending. Each UTXO has a specific value and is linked to a particular address.

This model allows for greater transparency and security in transactions, as each UTXO can be tracked on the blockchain, ensuring that the same funds are not double-spent. The UTXO system is crucial for maintaining the integrity of the cryptocurrency network and facilitating the flow of transactions.