January 2019
Beginner to intermediate
372 pages
11h 17m
English
Content preview from Foundations of Blockchain
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Verification of transactions
As we have seen, each valid transaction is created by collecting the UTXOs and unlocking them with appropriate scripts, before using the locking scripts, which will lock the funds for the next owner. The transaction is broadcast to the Bitcoin network so that everyone knows about the updated state of the blockchain. Broadcasting the transaction also makes sure that the transaction reaches a miner node and is included in any blocks that are created.
Although transactions are verified before they are broadcast to the network, a miner node always verifies each and every transaction before including it in the block. A single invalid transaction could result in the entire block being rejected by the Bitcoin network. ...
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