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Josh Green
15 lines
1.1 KiB
Markdown
15 lines
1.1 KiB
Markdown
# Script
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Bitcoin Cash transactions make use of a scripting language to authorize and secure transfers.
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While, colloquially, there is a tendency to refer to transactions as "sending" Bitcoin Cash to "an address", that is merely an abstraction.
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In fact, the only thing that permits the spending of existing [UTXOs](/protocol/blockchain/transaction#transaction-outputs) is the successful execution of a script.
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The only thing preventing the spending of newly created UTXOs is the difficulty of producing a successfully executing script.
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Through the use of cryptographic signatures and hash functions, such scripts are often designed specifically to be difficult to produce unless you are the intended spender of a given UTXO, though that need not necessarily be the case.
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For more information on how Transactions are commonly secured, see [Locking Script](/protocol/blockchain/transaction/locking-script).
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This page will focus on how the scripts are run, what they are capable of, and what limitations they have.
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## Script Execution
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Scripts are executed using a stack-based memory model. |