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OP_X

OP_TRUE and OP_FALSE

op-x (in protocol:blockchain:script:op-codes)

The `OP_X`

op codes add a numerical value to the top of the stack.

`OP_0`

pushes an empty byte array which is interpreted as the numerical value `0`

.

The rest push a single byte to the top of the stack as a two’s complement integer.

`OP_1`

pushes a `1`

, `OP_2`

pushes a `2`

, and so on through `OP_16`

, which adds a `16`

(`0x10`

).

`OP_FALSE`

is an alias for `OP_0`

while `OP_TRUE`

is an alias for `OP_1`

.