What is a Bitcoin UTXO?

A Bitcoin (BTC) UTXO is made up out of all 'outputs' that haven't been sent yet. All UTXO's within a wallet form the total balance in bitcoins. The technical term for bitcoin transactions is Unspent Transaction Output (UTXO). Every UTXO is an output, but at the same time also the input for a new UTXO.

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