Category: Bitcoin

locktime – Does the stack have entry to the present block top when validating transaction?

That description is inaccurate. There isn’t any option to entry the present time or top from inside the Script language. As a substitute, there’s a degree of indirection: A transactions nLockTime or nSequence enforces an absolute or relative locktime on the transaction. The OP_CHECKLOCKTIMEVERIFY and OP_SEQUENCEVERIFY opcodes inside script examine the highest stack component with […]

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