OP_ZERONOTEQUAL

Checks if the top item of the stack is not 0

OP_1ADD

Increments the top item of the stack by 1

OP_1SUB

Decrements the top item of the stack by 1

OP_ABS

Absolute value of the top item of the stack

OP_ADD

Adds the top two items on the stack and pushes the result onto the stack.

OP_BOOLAND

Logical AND of the top two items of the stack

OP_BOOLOR

Logical OR of the top two items of the stack

OP_CHECKLOCKTIMEVERIFY

Ensure a UTXO cannot be spent until an absolute block height or specific time

OP_CHECKSEQUENCEVERIFY

Ensure a UTXO remains unspendable for a relative number of blocks or duration since its confirmation.

OP_CHECKMULTISIG

Verifies multiple signatures against multiple public keys.

OP_CHECKSIG

Verifies a cryptographic signature against a public key & a message.

OP_DEPTH

Pushes the depth of the stack onto the stack.

OP_DROP

Removes the top item from the stack.

OP_DUP

Duplicates the top item on the stack and pushes the duplicate onto the stack.

OP_EQUAL

Checks top items for equivalency & pushes result (0x00 or 0x01)

OP_EQUALVERIFY

Compares the top two items on the stack for equality, doesn't push result.

OP_GREATERTHAN

Returns 0x01 if item-1 is greater than item-2, 0x00 otherwise

OP_GREATERTHANOREQUAL

Returns 1 if item-1 is greater than or equal to item-2, 0 otherwise

OP_HASH160

Hashes the top item on the stack using the SHA-256 & RIPEMD-160 algorithms.

OP_HASH256

Applies the SHA-256 hashing algorithm twice on the top item of the stack.

OP_LESSTHAN

Returns 0x01 if item-1 is less than item-2, 0x00 otherwise

OP_LESSTHANOREQUAL

Returns 1 if item-1 is less than or equal to item-2, 0 otherwise

OP_MAX

Pushes the larger of the top two items on the stack onto the stack.

OP_MIN

Pushes the smaller of the top two items on the stack onto the stack.

OP_NEGATE

Negates the top item of the stack

OP_NIP

Removes the second-to-top stack item.

OP_NOT

Logical NOT of the top item of the stack

OP_NUMEQUAL

Compares the top two items of the stack for equality

OP_NUMEQUALVERIFY

Compares the top two items of the stack for equality, stops executing if false

OP_NUMNOTEQUAL

Compares the top two items of the stack for inequality

OP_OVER

Copies the second-to-top stack item to the top.

OP_PUSHDATA

Pushes arbitrary data onto the stack

OP_RETURN

Marks the transaction as invalid and returns all of the remaining bytes as an error message.

OP_RIPEMD_160

Input is hashed using the ripemd160 hashing algorithim

OP_SHA1

Performs the SHA-1 hash function on the top item of the stack.

OP_SHA256

Input is hashed using the sha256 hashing algorithim

OP_SIZE

Pushes the size of the top item on the stack onto the stack.

OP_SUB

Subtracts the second item from the top item of the stack

OP_SWAP

Swaps the top two stack items.

OP_WITHIN

Checks if the third item of the stack is within the top two items.

OP_CHECK_SIG_ADD

Verifies a signature against a public key and increments the result by one if successful.

OP_2SWAP

Swaps the top two stack items.

OP_TOALTSTACK

Moves the top item from the main stack to the alternate stack.

OP_FROMALTSTACK

Moves the top item from the alternate stack to the main stack.

OP_2DROP

Removes the top two items from the stack.

OP_ROT

Rotates the top three items on the stack.

OP_TUCK

Duplicates the top stack item and inserts the duplicate copy before the second-to-top item.

OP_ROLL

Moves the nth item from the stack to the top position.

OP_PICK

Duplicates the nth item from the top of the stack and pushes it onto the top of the stack.

OP_INVERT

Performs a bitwise inversion on the top item of the stack.

OP_AND

Performs a bitwise AND operation between the top two items on the stack.

OP_OR

Performs a bitwise OR operation between the top two items on the stack.

OP_XOR

Performs a bitwise XOR operation between the top two items on the stack.

OP_MUL

Performs a multiplication operation between the top two items on the stack.

OP_2MUL

Multiplies the top item on the stack by 2.

OP_2DIV

Divides the top item on the stack by 2.

OP_DIV

Performs a division operation between the top two items on the stack.

OP_MOD

Performs a modulo operation between the top two items on the stack.

OP_LSHIFT

Performs a bitwise left shift operation on the top two items on the stack.

OP_RSHIFT

Performs a bitwise right shift operation on the top two items on the stack.