2.3 Bitcoin Blockchain: Scripts in Bitcoin

list of instructions

A(n) ________ is recorded with each transaction.

Lock script

________ is found in a transaction output and is the encumbrance that must be fulfilled to spend the output.

Bitcoin Script

________ is a stack- based programming language like Forth.

Bitcoin transactions

All ________ have scripts embedded into their inputs and outputs.

Scenario

________: Person X verifies the transaction is initiated by Person Y.

Person X

________ can spend Bitcoins only if both the scripts return true after execution.

hash

A(n) ________ is generated for the users public key.

Bitcoin

Operations in ________ are composed of opcodes.

Unlock script

________ is provided by the user to resolve the encumbrance.

Scenario

Person X verifies the transaction is initiated by Person Y

Bitcoin Script Construction

A script is a list of instructions recorded with each transaction

Opcodes have the following

constants, flow control, stack, bitwise logic, arithmetic, crypto, lock time, pseudowords, reserved words

Turing incomplete

means that one cannot have looping conditions in the code thus, the code is like a boolean (true or false).

scripts

All Bitcoin transactions have _______ embedded into their inputs and outputs

Unlock Scripts

______ _______ consists of the person’s public key and private key.

Lock script

____ ______ is found in a transaction output and is the encumbrance that must be fulfilled to spend the output.

Bitcoin Script Construction

A script is a list of instructions recorded with each transaction.

Opcodes have the following:

constants, flow control, stack, bitwise logic, arithmetic, crypto, lock time, pseudowords, reserved words