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SCRIPT HEADER

The script.h file is a key part of Bitcoin’s source code. It defines Bitcoin’s scripting language used for transaction validation. This language is stack-based, meaning it operates on a last-in, first-out principle, similar to a stack of coins.

The file outlines a series of opcodes, or operations, used in Bitcoin’s scripting language. These include operations for data manipulation, logical and arithmetic operations, and controlling the execution flow.

The CScript class, also defined in this file, represents a Bitcoin script. It provides methods for manipulating scripts, such as adding and retrieving operations. It also includes methods for converting scripts to and from string representations, useful for debugging and logging.

In the grand scheme, the script.h file is a fundamental part of the Bitcoin transaction system. It provides the functionality needed for transaction validation, a critical part of the Bitcoin mining process and the overall operation of the Bitcoin network.