Cannot verify ERC20 contract on Etherscan with no constructor parameters

hi
I can’t confirm my contract either.
help me

1 Like

Hi @mumfinance,

Welcome to the community :wave:

I recommend using https://buidler.dev/plugins/nomiclabs-buidler-etherscan.html to verify as multi-file.

Can you share your contract, address and whether optimization was enabled and I can help verify?

1 Like

hi

Hi, I found it nice.


optimization was enabled

Hi @mumfinance,

Can you share:

  • Contract source code
  • Constructor parameters
  • Solidity compiler version
  • Optimizer settings

Contract source code : https://etherscan.io/token/0x914a3c0b6dd6ec022d4fa0db75ce82314b153a31
Constructor parameters

{
	"linkReferences": {},
	"object": "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",
	"opcodes": "PUSH1 0x80 PUSH1 0x40 MSTORE CALLVALUE DUP1 ISZERO PUSH2 0x10 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH2 0x710 DUP1 PUSH2 0x20 PUSH1 0x0 CODECOPY PUSH1 0x0 RETURN INVALID PUSH1 0x80 PUSH1 0x40 MSTORE CALLVALUE DUP1 ISZERO PUSH2 0x10 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x4 CALLDATASIZE LT PUSH2 0xA5 JUMPI PUSH1 0x0 CALLDATALOAD PUSH29 0x100000000000000000000000000000000000000000000000000000000 SWAP1 DIV DUP1 PUSH4 0x70A08231 GT PUSH2 0x78 JUMPI DUP1 PUSH4 0x70A08231 EQ PUSH2 0x166 JUMPI DUP1 PUSH4 0xA457C2D7 EQ PUSH2 0x18C JUMPI DUP1 PUSH4 0xA9059CBB EQ PUSH2 0x1B8 JUMPI DUP1 PUSH4 0xDD62ED3E EQ PUSH2 0x1E4 JUMPI PUSH2 0xA5 JUMP JUMPDEST DUP1 PUSH4 0x95EA7B3 EQ PUSH2 0xAA JUMPI DUP1 PUSH4 0x18160DDD EQ PUSH2 0xEA JUMPI DUP1 PUSH4 0x23B872DD EQ PUSH2 0x104 JUMPI DUP1 PUSH4 0x39509351 EQ PUSH2 0x13A JUMPI JUMPDEST PUSH1 0x0 DUP1 REVERT JUMPDEST PUSH2 0xD6 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x40 DUP2 LT ISZERO PUSH2 0xC0 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP2 CALLDATALOAD AND SWAP1 PUSH1 0x20 ADD CALLDATALOAD PUSH2 0x212 JUMP JUMPDEST PUSH1 0x40 DUP1 MLOAD SWAP2 ISZERO ISZERO DUP3 MSTORE MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x20 ADD SWAP1 RETURN JUMPDEST PUSH2 0xF2 PUSH2 0x228 JUMP JUMPDEST PUSH1 0x40 DUP1 MLOAD SWAP2 DUP3 MSTORE MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x20 ADD SWAP1 RETURN JUMPDEST PUSH2 0xD6 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x60 DUP2 LT ISZERO PUSH2 0x11A JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP2 CALLDATALOAD DUP2 AND SWAP2 PUSH1 0x20 DUP2 ADD CALLDATALOAD SWAP1 SWAP2 AND SWAP1 PUSH1 0x40 ADD CALLDATALOAD PUSH2 0x22E JUMP JUMPDEST PUSH2 0xD6 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x40 DUP2 LT ISZERO PUSH2 0x150 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP2 CALLDATALOAD AND SWAP1 PUSH1 0x20 ADD CALLDATALOAD PUSH2 0x285 JUMP JUMPDEST PUSH2 0xF2 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x20 DUP2 LT ISZERO PUSH2 0x17C JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP CALLDATALOAD PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB AND PUSH2 0x2C1 JUMP JUMPDEST PUSH2 0xD6 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x40 DUP2 LT ISZERO PUSH2 0x1A2 JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP2 CALLDATALOAD AND SWAP1 PUSH1 0x20 ADD CALLDATALOAD PUSH2 0x2DC JUMP JUMPDEST PUSH2 0xD6 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x40 DUP2 LT ISZERO PUSH2 0x1CE JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP2 CALLDATALOAD AND SWAP1 PUSH1 0x20 ADD CALLDATALOAD PUSH2 0x318 JUMP JUMPDEST PUSH2 0xF2 PUSH1 0x4 DUP1 CALLDATASIZE SUB PUSH1 0x40 DUP2 LT ISZERO PUSH2 0x1FA JUMPI PUSH1 0x0 DUP1 REVERT JUMPDEST POP PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP2 CALLDATALOAD DUP2 AND SWAP2 PUSH1 0x20 ADD CALLDATALOAD AND PUSH2 0x325 JUMP JUMPDEST PUSH1 0x0 PUSH2 0x21F CALLER DUP5 DUP5 PUSH2 0x350 JUMP JUMPDEST POP PUSH1 0x1 SWAP3 SWAP2 POP POP JUMP JUMPDEST PUSH1 0x2 SLOAD SWAP1 JUMP JUMPDEST PUSH1 0x0 PUSH2 0x23B DUP5 DUP5 DUP5 PUSH2 0x446 JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP5 AND PUSH1 0x0 SWAP1 DUP2 MSTORE PUSH1 0x1 PUSH1 0x20 SWAP1 DUP2 MSTORE PUSH1 0x40 DUP1 DUP4 KECCAK256 CALLER DUP1 DUP6 MSTORE SWAP3 MSTORE SWAP1 SWAP2 KECCAK256 SLOAD PUSH2 0x27B SWAP2 DUP7 SWAP2 PUSH2 0x276 SWAP1 DUP7 PUSH4 0xFFFFFFFF PUSH2 0x592 AND JUMP JUMPDEST PUSH2 0x350 JUMP JUMPDEST POP PUSH1 0x1 SWAP4 SWAP3 POP POP POP JUMP JUMPDEST CALLER PUSH1 0x0 DUP2 DUP2 MSTORE PUSH1 0x1 PUSH1 0x20 SWAP1 DUP2 MSTORE PUSH1 0x40 DUP1 DUP4 KECCAK256 PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP8 AND DUP5 MSTORE SWAP1 SWAP2 MSTORE DUP2 KECCAK256 SLOAD SWAP1 SWAP2 PUSH2 0x21F SWAP2 DUP6 SWAP1 PUSH2 0x276 SWAP1 DUP7 PUSH4 0xFFFFFFFF PUSH2 0x5F2 AND JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB AND PUSH1 0x0 SWAP1 DUP2 MSTORE PUSH1 0x20 DUP2 SWAP1 MSTORE PUSH1 0x40 SWAP1 KECCAK256 SLOAD SWAP1 JUMP JUMPDEST CALLER PUSH1 0x0 DUP2 DUP2 MSTORE PUSH1 0x1 PUSH1 0x20 SWAP1 DUP2 MSTORE PUSH1 0x40 DUP1 DUP4 KECCAK256 PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP8 AND DUP5 MSTORE SWAP1 SWAP2 MSTORE DUP2 KECCAK256 SLOAD SWAP1 SWAP2 PUSH2 0x21F SWAP2 DUP6 SWAP1 PUSH2 0x276 SWAP1 DUP7 PUSH4 0xFFFFFFFF PUSH2 0x592 AND JUMP JUMPDEST PUSH1 0x0 PUSH2 0x21F CALLER DUP5 DUP5 PUSH2 0x446 JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB SWAP2 DUP3 AND PUSH1 0x0 SWAP1 DUP2 MSTORE PUSH1 0x1 PUSH1 0x20 SWAP1 DUP2 MSTORE PUSH1 0x40 DUP1 DUP4 KECCAK256 SWAP4 SWAP1 SWAP5 AND DUP3 MSTORE SWAP2 SWAP1 SWAP2 MSTORE KECCAK256 SLOAD SWAP1 JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP4 AND ISZERO ISZERO PUSH2 0x39A JUMPI PUSH1 0x40 MLOAD PUSH1 0xE5 PUSH1 0x2 EXP PUSH3 0x461BCD MUL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE PUSH1 0x24 DUP2 MSTORE PUSH1 0x20 ADD DUP1 PUSH2 0x6C1 PUSH1 0x24 SWAP2 CODECOPY PUSH1 0x40 ADD SWAP2 POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP3 AND ISZERO ISZERO PUSH2 0x3E4 JUMPI PUSH1 0x40 MLOAD PUSH1 0xE5 PUSH1 0x2 EXP PUSH3 0x461BCD MUL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE PUSH1 0x22 DUP2 MSTORE PUSH1 0x20 ADD DUP1 PUSH2 0x67A PUSH1 0x22 SWAP2 CODECOPY PUSH1 0x40 ADD SWAP2 POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP1 DUP5 AND PUSH1 0x0 DUP2 DUP2 MSTORE PUSH1 0x1 PUSH1 0x20 SWAP1 DUP2 MSTORE PUSH1 0x40 DUP1 DUP4 KECCAK256 SWAP5 DUP8 AND DUP1 DUP5 MSTORE SWAP5 DUP3 MSTORE SWAP2 DUP3 SWAP1 KECCAK256 DUP6 SWAP1 SSTORE DUP2 MLOAD DUP6 DUP2 MSTORE SWAP2 MLOAD PUSH32 0x8C5BE1E5EBEC7D5BD14F71427D1E84F3DD0314C0F7B2291E5B200AC8C7C3B925 SWAP3 DUP2 SWAP1 SUB SWAP1 SWAP2 ADD SWAP1 LOG3 POP POP POP JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP4 AND ISZERO ISZERO PUSH2 0x490 JUMPI PUSH1 0x40 MLOAD PUSH1 0xE5 PUSH1 0x2 EXP PUSH3 0x461BCD MUL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE PUSH1 0x25 DUP2 MSTORE PUSH1 0x20 ADD DUP1 PUSH2 0x69C PUSH1 0x25 SWAP2 CODECOPY PUSH1 0x40 ADD SWAP2 POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP3 AND ISZERO ISZERO PUSH2 0x4DA JUMPI PUSH1 0x40 MLOAD PUSH1 0xE5 PUSH1 0x2 EXP PUSH3 0x461BCD MUL DUP2 MSTORE PUSH1 0x4 ADD DUP1 DUP1 PUSH1 0x20 ADD DUP3 DUP2 SUB DUP3 MSTORE PUSH1 0x23 DUP2 MSTORE PUSH1 0x20 ADD DUP1 PUSH2 0x657 PUSH1 0x23 SWAP2 CODECOPY PUSH1 0x40 ADD SWAP2 POP POP PUSH1 0x40 MLOAD DUP1 SWAP2 SUB SWAP1 REVERT JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP4 AND PUSH1 0x0 SWAP1 DUP2 MSTORE PUSH1 0x20 DUP2 SWAP1 MSTORE PUSH1 0x40 SWAP1 KECCAK256 SLOAD PUSH2 0x503 SWAP1 DUP3 PUSH4 0xFFFFFFFF PUSH2 0x592 AND JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP1 DUP6 AND PUSH1 0x0 SWAP1 DUP2 MSTORE PUSH1 0x20 DUP2 SWAP1 MSTORE PUSH1 0x40 DUP1 DUP3 KECCAK256 SWAP4 SWAP1 SWAP4 SSTORE SWAP1 DUP5 AND DUP2 MSTORE KECCAK256 SLOAD PUSH2 0x538 SWAP1 DUP3 PUSH4 0xFFFFFFFF PUSH2 0x5F2 AND JUMP JUMPDEST PUSH1 0x1 PUSH1 0xA0 PUSH1 0x2 EXP SUB DUP1 DUP5 AND PUSH1 0x0 DUP2 DUP2 MSTORE PUSH1 0x20 DUP2 DUP2 MSTORE PUSH1 0x40 SWAP2 DUP3 SWAP1 KECCAK256 SWAP5 SWAP1 SWAP5 SSTORE DUP1 MLOAD DUP6 DUP2 MSTORE SWAP1 MLOAD SWAP2 SWAP4 SWAP3 DUP8 AND SWAP3 PUSH32 0xDDF252AD1BE2C89B69C2B068FC378DAA952BA7F163C4A11628F55A4DF523B3EF SWAP3 SWAP2 DUP3 SWAP1 SUB ADD SWAP1 LOG3 POP POP POP JUMP JUMPDEST PUSH1 0x0 DUP3 DUP3 GT ISZERO PUSH2 0x5EC JUMPI PUSH1 0x40 DUP1 MLOAD PUSH1 0xE5 PUSH1 0x2 EXP PUSH3 0x461BCD MUL DUP2 MSTORE PUSH1 0x20 PUSH1 0x4 DUP3 ADD MSTORE PUSH1 0x1E PUSH1 0x24 DUP3 ADD MSTORE PUSH32 0x536166654D6174683A207375627472616374696F6E206F766572666C6F770000 PUSH1 0x44 DUP3 ADD MSTORE SWAP1 MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x64 ADD SWAP1 REVERT JUMPDEST POP SWAP1 SUB SWAP1 JUMP JUMPDEST PUSH1 0x0 DUP3 DUP3 ADD DUP4 DUP2 LT ISZERO PUSH2 0x64F JUMPI PUSH1 0x40 DUP1 MLOAD PUSH1 0xE5 PUSH1 0x2 EXP PUSH3 0x461BCD MUL DUP2 MSTORE PUSH1 0x20 PUSH1 0x4 DUP3 ADD MSTORE PUSH1 0x1B PUSH1 0x24 DUP3 ADD MSTORE PUSH32 0x536166654D6174683A206164646974696F6E206F766572666C6F770000000000 PUSH1 0x44 DUP3 ADD MSTORE SWAP1 MLOAD SWAP1 DUP2 SWAP1 SUB PUSH1 0x64 ADD SWAP1 REVERT JUMPDEST SWAP4 SWAP3 POP POP POP JUMP INVALID GASLIMIT MSTORE NUMBER ORIGIN ADDRESS GASPRICE KECCAK256 PUSH21 0x72616E7366657220746F20746865207A65726F2061 PUSH5 0x6472657373 GASLIMIT MSTORE NUMBER ORIGIN ADDRESS GASPRICE KECCAK256 PUSH2 0x7070 PUSH19 0x6F766520746F20746865207A65726F20616464 PUSH19 0x65737345524332303A207472616E7366657220 PUSH7 0x726F6D20746865 KECCAK256 PUSH27 0x65726F206164647265737345524332303A20617070726F76652066 PUSH19 0x6F6D20746865207A65726F2061646472657373 LOG1 PUSH6 0x627A7A723058 KECCAK256 0xda SWAP15 GAS DUP14 0xda DUP2 CREATE DUP12 NUMBER DUP11 SMOD 0xef 0x22 LOG0 DUP4 SUB SHL PUSH18 0x3F2B47FDCFD3BFF136EB7617A2DE00290000 ",
	"sourceMap": "1227:6579:0:-;;;;8:9:-1;5:2;;;30:1;27;20:12;5:2;1227:6579:0;;;;;;;"
}

Solidity compiler version pragma solidity ^0.5.2;
Optimizer settings: yes

1 Like

Hi @mumfinance,

If your contract constructor doesn’t take any parameters then you can remove this from the constructor field.

You provided the contract bytecode, not the source code.

can you connect me to the teamwawer remotely and look

1 Like

Hi @mumfinance,

I verified the contract using multi-file verification on Etherscan, compiler 0.5.2, optimization enabled, with no constructor parameters.