How to publish and verify smart contract code (Solidity, Remix, EVM)

From this video, you will learn how to verify and publish smart contract code. After verification, anybody can check code and start interacting with your contract directly from blockchain explorer like etherscan or others.

#ethereum #remix #solidity

[ankitkathayat]

Thanks man! :) I was stuck in this since last 2 hours. Finally able to verify contract.
To all, set compiler version to max in etherscan beforehand, otherwise it won't verify.

[joanh]

this video just save my life! thank you mate!

[gregthomas]

You are lifesaver. Thank you for this tutorial, Artur!

[lyudmilamerlinov]

5:43 his name is flatten .. thanks dude for save my time

[carlloomda]

great video thx so much can u make video pls about how to add whitelist to this contract and let the ppl mint it + adding it to the mint dapp

[AerosDaDinoHoodie]

Thank you so much! I was having trouble with the verification part, turns out that "Flattener" tool was exactly the thing I needed. I was trying to just send the original contract with the "import @openzeppelin" lines, which the Etherscan compiler doesn't understand.

[rgkafkdjsk]

Hello Sir, Nice Tutorial Btw...is there a way to verify Mutipart smart contracts ?if we have the all the contracts codes files and ABI and Transact Value?

[vike]

Thanks for this video. I'm trying to Verify and Publish my token contract but keep getting an error. I get this code "Error! Unable to generate Contract ByteCode and ABI" - any idea why?

[cosmicknox]

thanks mate was trying to get around it for a while now ❤

[DomiSiki]

Can you make a tutorial for doing the same thing on Avalanche with hardhat option

[uzairsiddiq]

I've deployed on BSC Network but there is no Plugin for BscScan Contract Verification so, I use EtherScan Contract Verification plugin in remix IDE ?

[marlonsubuyu]

Thank you very much for this tutorial!

[vladimirlebedev]

Hooray! Thank you again, Artur! By the way, I wonder, if I want to enable a feature which allow me to mint another nft and set img for it, is it possible to have only one ipfs resource for it? Or after deployment I have to use another ipfs?

[kazamkhan]

can we copy and paste from other contract address and verify it

[anhviet]

i deploy contract and got a code!!!
Error! Unable to generate Contract ByteCode and ABI
Found the following ContractName(s) in source code : Airdrop, Context, ERC20, IERC20, IERC20Metadata, Ownable, SafeMath, Token
But we were unable to locate a matching bytecode (err_code_2)
For troubleshooting, you can try compiling your source code with the Remix - Solidity IDE and check for exceptions

how to fix that?

[kymatictulpacreationscrypt]

FLATTENER plug in is not working. Do you know other way to get the code? thanks

[yashmadhwal]

I am trying searching for this.. Do Flatters still work?

[Viktor_Dan]

When I change code on Remix and issue Gas estimation errored with the following message (see below). The transaction execution will likely fail. How to fix the error?

[ragibhussain]

I used this same technique for verifying the contract but once I started writing the contracts which had input parameters in the constructor, it couldn't verify the bytecode.

[moonbot-en-]

hi is it possible to test a existing contract found on bsc before it launches on remix?