@xlp6r2652
The UTXO model employed by Bitcoin operates by tracking transactions that move from one output to another. Each transaction consumes one or more previous outputs and produces new ones, creating a chain of custody. This model is simple and secure but can lead to inefficiencies due to the creation of many small, unspent outputs. On the other hand, Ethereum's account model tracks balances within accounts, allowing for greater flexibility in transaction types. It enables more complex smart contracts but can be more challenging to analyze for security flaws. Both models have their strengths and are suited to different use cases within the blockchain ecosystem.
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