Module opcodes Copy item path Source OpCode OP_0NOTEQUAL Map 0 to 0 and everything else to 1, in place. OP_1ADD Increment the top stack element in place. OP_1SUB Decrement the top stack element in place. OP_2DIV Fail the script unconditionally, does not even need to be executed. OP_2DROP Drops the top two stack items. OP_2DUP Duplicates the top two stack items as AB -> ABAB. OP_2MUL Fail the script unconditionally, does not even need to be executed. OP_2OVER Copies the two stack items of items two spaces back to the front, as xxAB ->
ABxxAB. OP_2ROT Moves the two stack items four spaces back to the front, as xxxxAB ->
ABxxxx. OP_2SWAP Swaps the top two pairs, as ABCD -> CDAB. OP_3DUP Duplicates the two three stack items as ABC -> ABCABC. OP_ABS Absolute value the top stack item in place. OP_ADD Pop two stack items and push their sum. OP_AND Fail the script unconditionally, does not even need to be executed. OP_BOOLAND Pop the top two stack items and push 1 if both are nonzero, else push 0. OP_BOOLOR Pop the top two stack items and push 1 if either is nonzero, else push 0. OP_CAT Fail the script unconditionally, does not even need to be executed. OP_CHECKMULTISIG Pop N, N pubkeys, M, M signatures, a dummy (due to bug in reference code),
and verify that all M signatures are valid. Push 1 for ‘all valid’, 0
otherwise. OP_CHECKMULTISIGVERIFY Like the above but return success/failure. OP_CHECKSIG https://en.bitcoin.it/wiki/OP_CHECKSIG pushing 1/0 for success/failure.OP_CHECKSIGADD OP_CHECKSIGADD post tapscript. OP_CHECKSIGVERIFY https://en.bitcoin.it/wiki/OP_CHECKSIG returning success/failure.OP_CLTV https://github.com/bitcoin/bips/blob/master/bip-0065.mediawiki OP_CODESEPARATOR Ignore this and everything preceding when deciding what to sign when
signature-checking. OP_CSV https://github.com/bitcoin/bips/blob/master/bip-0112.mediawiki OP_DEPTH Push the current number of stack items onto the stack. OP_DIV Fail the script unconditionally, does not even need to be executed. OP_DROP Drops the top stack item. OP_DUP Duplicates the top stack item. OP_ELSE Execute statements if those after the previous OP_IF were not, and
vice-versa. If there is no previous OP_IF, this acts as an OP_RETURN. OP_ENDIF Pop and execute the next statements if a zero element was popped. OP_EQUAL Pushes 1 if the inputs are exactly equal, 0 otherwise. OP_EQUALVERIFY Returns success if the inputs are exactly equal, failure otherwise. OP_FROMALTSTACK Pop one element from the alt stack onto the main stack. OP_GREATERTHAN Pop the top two items; push 1 if the second is greater than the top, 0
otherwise. OP_GREATERTHANOREQUAL Pop the top two items; push 1 if the second is >= the top, 0 otherwise. OP_HASH160 Pop the top stack item and push its RIPEMD(SHA256) hash. OP_HASH256 Pop the top stack item and push its SHA256(SHA256) hash. OP_IF Pop and execute the next statements if a nonzero element was popped. OP_IFDUP Duplicate the top stack element unless it is zero. OP_INVALIDOPCODE Synonym for OP_RETURN. OP_INVERT Fail the script unconditionally, does not even need to be executed. OP_LEFT Fail the script unconditionally, does not even need to be executed. OP_LESSTHAN Pop the top two items; push 1 if the second is less than the top, 0
otherwise. OP_LESSTHANOREQUAL Pop the top two items; push 1 if the second is <= the top, 0 otherwise. OP_LSHIFT Fail the script unconditionally, does not even need to be executed. OP_MAX Pop the top two items; push the larger. OP_MIN Pop the top two items; push the smaller. OP_MOD Fail the script unconditionally, does not even need to be executed. OP_MUL Fail the script unconditionally, does not even need to be executed. OP_NEGATE Multiply the top stack item by -1 in place. OP_NIP Drops the second-to-top stack item. OP_NOP Does nothing. OP_NOP1 Does nothing. OP_NOP4 Does nothing. OP_NOP5 Does nothing. OP_NOP6 Does nothing. OP_NOP7 Does nothing. OP_NOP8 Does nothing. OP_NOP9 Does nothing. OP_NOP10 Does nothing. OP_NOT Map 0 to 1 and everything else to 0, in place. OP_NOTIF Pop and execute the next statements if a zero element was popped. OP_NUMEQUAL Pop the top two stack items and push 1 if both are numerically equal, else
push 0. OP_NUMEQUALVERIFY Pop the top two stack items and return success if both are numerically
equal, else return failure. OP_NUMNOTEQUAL Pop the top two stack items and push 0 if both are numerically equal, else
push 1. OP_OR Fail the script unconditionally, does not even need to be executed. OP_OVER Copies the second-to-top stack item, as xA -> AxA. OP_PICK Pop the top stack element as N. Copy the Nth stack element to the top. OP_PUSHBYTES_0 Push an empty array onto the stack. OP_PUSHBYTES_1 Push the next byte as an array onto the stack. OP_PUSHBYTES_2 Push the next 2 bytes as an array onto the stack. OP_PUSHBYTES_3 Push the next 3 bytes as an array onto the stack. OP_PUSHBYTES_4 Push the next 4 bytes as an array onto the stack. OP_PUSHBYTES_5 Push the next 5 bytes as an array onto the stack. OP_PUSHBYTES_6 Push the next 6 bytes as an array onto the stack. OP_PUSHBYTES_7 Push the next 7 bytes as an array onto the stack. OP_PUSHBYTES_8 Push the next 8 bytes as an array onto the stack. OP_PUSHBYTES_9 Push the next 9 bytes as an array onto the stack. OP_PUSHBYTES_10 Push the next 10 bytes as an array onto the stack. OP_PUSHBYTES_11 Push the next 11 bytes as an array onto the stack. OP_PUSHBYTES_12 Push the next 12 bytes as an array onto the stack. OP_PUSHBYTES_13 Push the next 13 bytes as an array onto the stack. OP_PUSHBYTES_14 Push the next 14 bytes as an array onto the stack. OP_PUSHBYTES_15 Push the next 15 bytes as an array onto the stack. OP_PUSHBYTES_16 Push the next 16 bytes as an array onto the stack. OP_PUSHBYTES_17 Push the next 17 bytes as an array onto the stack. OP_PUSHBYTES_18 Push the next 18 bytes as an array onto the stack. OP_PUSHBYTES_19 Push the next 19 bytes as an array onto the stack. OP_PUSHBYTES_20 Push the next 20 bytes as an array onto the stack. OP_PUSHBYTES_21 Push the next 21 bytes as an array onto the stack. OP_PUSHBYTES_22 Push the next 22 bytes as an array onto the stack. OP_PUSHBYTES_23 Push the next 23 bytes as an array onto the stack. OP_PUSHBYTES_24 Push the next 24 bytes as an array onto the stack. OP_PUSHBYTES_25 Push the next 25 bytes as an array onto the stack. OP_PUSHBYTES_26 Push the next 26 bytes as an array onto the stack. OP_PUSHBYTES_27 Push the next 27 bytes as an array onto the stack. OP_PUSHBYTES_28 Push the next 28 bytes as an array onto the stack. OP_PUSHBYTES_29 Push the next 29 bytes as an array onto the stack. OP_PUSHBYTES_30 Push the next 30 bytes as an array onto the stack. OP_PUSHBYTES_31 Push the next 31 bytes as an array onto the stack. OP_PUSHBYTES_32 Push the next 32 bytes as an array onto the stack. OP_PUSHBYTES_33 Push the next 33 bytes as an array onto the stack. OP_PUSHBYTES_34 Push the next 34 bytes as an array onto the stack. OP_PUSHBYTES_35 Push the next 35 bytes as an array onto the stack. OP_PUSHBYTES_36 Push the next 36 bytes as an array onto the stack. OP_PUSHBYTES_37 Push the next 37 bytes as an array onto the stack. OP_PUSHBYTES_38 Push the next 38 bytes as an array onto the stack. OP_PUSHBYTES_39 Push the next 39 bytes as an array onto the stack. OP_PUSHBYTES_40 Push the next 40 bytes as an array onto the stack. OP_PUSHBYTES_41 Push the next 41 bytes as an array onto the stack. OP_PUSHBYTES_42 Push the next 42 bytes as an array onto the stack. OP_PUSHBYTES_43 Push the next 43 bytes as an array onto the stack. OP_PUSHBYTES_44 Push the next 44 bytes as an array onto the stack. OP_PUSHBYTES_45 Push the next 45 bytes as an array onto the stack. OP_PUSHBYTES_46 Push the next 46 bytes as an array onto the stack. OP_PUSHBYTES_47 Push the next 47 bytes as an array onto the stack. OP_PUSHBYTES_48 Push the next 48 bytes as an array onto the stack. OP_PUSHBYTES_49 Push the next 49 bytes as an array onto the stack. OP_PUSHBYTES_50 Push the next 50 bytes as an array onto the stack. OP_PUSHBYTES_51 Push the next 51 bytes as an array onto the stack. OP_PUSHBYTES_52 Push the next 52 bytes as an array onto the stack. OP_PUSHBYTES_53 Push the next 53 bytes as an array onto the stack. OP_PUSHBYTES_54 Push the next 54 bytes as an array onto the stack. OP_PUSHBYTES_55 Push the next 55 bytes as an array onto the stack. OP_PUSHBYTES_56 Push the next 56 bytes as an array onto the stack. OP_PUSHBYTES_57 Push the next 57 bytes as an array onto the stack. OP_PUSHBYTES_58 Push the next 58 bytes as an array onto the stack. OP_PUSHBYTES_59 Push the next 59 bytes as an array onto the stack. OP_PUSHBYTES_60 Push the next 60 bytes as an array onto the stack. OP_PUSHBYTES_61 Push the next 61 bytes as an array onto the stack. OP_PUSHBYTES_62 Push the next 62 bytes as an array onto the stack. OP_PUSHBYTES_63 Push the next 63 bytes as an array onto the stack. OP_PUSHBYTES_64 Push the next 64 bytes as an array onto the stack. OP_PUSHBYTES_65 Push the next 65 bytes as an array onto the stack. OP_PUSHBYTES_66 Push the next 66 bytes as an array onto the stack. OP_PUSHBYTES_67 Push the next 67 bytes as an array onto the stack. OP_PUSHBYTES_68 Push the next 68 bytes as an array onto the stack. OP_PUSHBYTES_69 Push the next 69 bytes as an array onto the stack. OP_PUSHBYTES_70 Push the next 70 bytes as an array onto the stack. OP_PUSHBYTES_71 Push the next 71 bytes as an array onto the stack. OP_PUSHBYTES_72 Push the next 72 bytes as an array onto the stack. OP_PUSHBYTES_73 Push the next 73 bytes as an array onto the stack. OP_PUSHBYTES_74 Push the next 74 bytes as an array onto the stack. OP_PUSHBYTES_75 Push the next 75 bytes as an array onto the stack. OP_PUSHDATA1 Read the next byte as N; push the next N bytes as an array onto the stack. OP_PUSHDATA2 Read the next 2 bytes as N; push the next N bytes as an array onto the
stack. OP_PUSHDATA4 Read the next 4 bytes as N; push the next N bytes as an array onto the
stack. OP_PUSHNUM_1 Push the array 0x01 onto the stack. OP_PUSHNUM_2 the array 0x02 onto the stack. OP_PUSHNUM_3 Push the array 0x03 onto the stack. OP_PUSHNUM_4 Push the array 0x04 onto the stack. OP_PUSHNUM_5 Push the array 0x05 onto the stack. OP_PUSHNUM_6 Push the array 0x06 onto the stack. OP_PUSHNUM_7 Push the array 0x07 onto the stack. OP_PUSHNUM_8 Push the array 0x08 onto the stack. OP_PUSHNUM_9 Push the array 0x09 onto the stack. OP_PUSHNUM_10 Push the array 0x0a onto the stack. OP_PUSHNUM_11 Push the array 0x0b onto the stack. OP_PUSHNUM_12 Push the array 0x0c onto the stack. OP_PUSHNUM_13 Push the array 0x0d onto the stack. OP_PUSHNUM_14 Push the array 0x0e onto the stack. OP_PUSHNUM_15 Push the array 0x0f onto the stack. OP_PUSHNUM_16 Push the array 0x10 onto the stack. OP_PUSHNUM_NEG1 Push the array 0x81 onto the stack. OP_RESERVED Synonym for OP_RETURN. OP_RESERVED1 Synonym for OP_RETURN. OP_RESERVED2 Synonym for OP_RETURN. OP_RETURN Fail the script immediately. (Must be executed.). OP_RETURN_187 Synonym for OP_RETURN. OP_RETURN_188 Synonym for OP_RETURN. OP_RETURN_189 Synonym for OP_RETURN. OP_RETURN_190 Synonym for OP_RETURN. OP_RETURN_191 Synonym for OP_RETURN. OP_RETURN_192 Synonym for OP_RETURN. OP_RETURN_193 Synonym for OP_RETURN. OP_RETURN_194 Synonym for OP_RETURN. OP_RETURN_195 Synonym for OP_RETURN. OP_RETURN_196 Synonym for OP_RETURN. OP_RETURN_197 Synonym for OP_RETURN. OP_RETURN_198 Synonym for OP_RETURN. OP_RETURN_199 Synonym for OP_RETURN. OP_RETURN_200 Synonym for OP_RETURN. OP_RETURN_201 Synonym for OP_RETURN. OP_RETURN_202 Synonym for OP_RETURN. OP_RETURN_203 Synonym for OP_RETURN. OP_RETURN_204 Synonym for OP_RETURN. OP_RETURN_205 Synonym for OP_RETURN. OP_RETURN_206 Synonym for OP_RETURN. OP_RETURN_207 Synonym for OP_RETURN. OP_RETURN_208 Synonym for OP_RETURN. OP_RETURN_209 Synonym for OP_RETURN. OP_RETURN_210 Synonym for OP_RETURN. OP_RETURN_211 Synonym for OP_RETURN. OP_RETURN_212 Synonym for OP_RETURN. OP_RETURN_213 Synonym for OP_RETURN. OP_RETURN_214 Synonym for OP_RETURN. OP_RETURN_215 Synonym for OP_RETURN. OP_RETURN_216 Synonym for OP_RETURN. OP_RETURN_217 Synonym for OP_RETURN. OP_RETURN_218 Synonym for OP_RETURN. OP_RETURN_219 Synonym for OP_RETURN. OP_RETURN_220 Synonym for OP_RETURN. OP_RETURN_221 Synonym for OP_RETURN. OP_RETURN_222 Synonym for OP_RETURN. OP_RETURN_223 Synonym for OP_RETURN. OP_RETURN_224 Synonym for OP_RETURN. OP_RETURN_225 Synonym for OP_RETURN. OP_RETURN_226 Synonym for OP_RETURN. OP_RETURN_227 Synonym for OP_RETURN. OP_RETURN_228 Synonym for OP_RETURN. OP_RETURN_229 Synonym for OP_RETURN. OP_RETURN_230 Synonym for OP_RETURN. OP_RETURN_231 Synonym for OP_RETURN. OP_RETURN_232 Synonym for OP_RETURN. OP_RETURN_233 Synonym for OP_RETURN. OP_RETURN_234 Synonym for OP_RETURN. OP_RETURN_235 Synonym for OP_RETURN. OP_RETURN_236 Synonym for OP_RETURN. OP_RETURN_237 Synonym for OP_RETURN. OP_RETURN_238 Synonym for OP_RETURN. OP_RETURN_239 Synonym for OP_RETURN. OP_RETURN_240 Synonym for OP_RETURN. OP_RETURN_241 Synonym for OP_RETURN. OP_RETURN_242 Synonym for OP_RETURN. OP_RETURN_243 Synonym for OP_RETURN. OP_RETURN_244 Synonym for OP_RETURN. OP_RETURN_245 Synonym for OP_RETURN. OP_RETURN_246 Synonym for OP_RETURN. OP_RETURN_247 Synonym for OP_RETURN. OP_RETURN_248 Synonym for OP_RETURN. OP_RETURN_249 Synonym for OP_RETURN. OP_RETURN_250 Synonym for OP_RETURN. OP_RETURN_251 Synonym for OP_RETURN. OP_RETURN_252 Synonym for OP_RETURN. OP_RETURN_253 Synonym for OP_RETURN. OP_RETURN_254 Synonym for OP_RETURN. OP_RIGHT Fail the script unconditionally, does not even need to be executed. OP_RIPEMD160 Pop the top stack item and push its RIPEMD160 hash. OP_ROLL Pop the top stack element as N. Move the Nth stack element to the top. OP_ROT Rotate the top three stack items, as [top next1 next2] -> [next2 top next1]. OP_RSHIFT Fail the script unconditionally, does not even need to be executed. OP_SHA1 Pop the top stack item and push its SHA1 hash. OP_SHA256 Pop the top stack item and push its SHA256 hash. OP_SIZE Pushes the length of the top stack item onto the stack. OP_SUB Pop two stack items and push the second minus the top. OP_SUBSTR Fail the script unconditionally, does not even need to be executed. OP_SWAP Swap the top two stack items. OP_TOALTSTACK Pop one element from the main stack onto the alt stack. OP_TUCK Copy the top stack item to before the second item, as [top next] -> [top
next top]. OP_VER Synonym for OP_RETURN. OP_VERIF Fail the script unconditionally, does not even need to be executed. OP_VERIFY If the top value is zero or the stack is empty, fail; otherwise, pop the
stack. OP_VERNOTIF Fail the script unconditionally, does not even need to be executed. OP_WITHIN Pop the top three items; if the top is >= the second and < the third, push
1, otherwise push 0. OP_XOR Fail the script unconditionally, does not even need to be executed.