January 2019
Beginner to intermediate
372 pages
11h 17m
English
Content preview from Foundations of Blockchain
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Consuming UTXOs
To create a transaction to transfer funds, you need to combine one or more UTXOs, just like gathering coins or cash to pay someone. Figure 5.6 shows how two UTXOs that have the values 40 and 10 are combined to create a transaction output of 45 to pay to the other user. The remaining output value of 5 is called the change amount, and this will be addressed back to the creator of the transaction in a similar way to receiving change when we pay for something in a shop:
Figure 5.6: The creation of new output transaction outputs from the available UTXOs
The user wallet selects a set of UTXOs that could be used to spend a particular ...
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