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Verify and Publish in BSC Scan not working

I have a contract, where I compiled it optimized in 200. When I go to publish in BSC Scan, it gives me some messages as attached. I'm informing in bsc scan the optimization in 200. It points out ...
Rafael Lima's user avatar
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0 answers
973 views

How to Verify smart contracts deployed on polygon scan?

we have deployed solidity contract to polygonscan, but for some reason, the smart contracts with imports cannot be verified. Has anyone else experienced this?
Kaleb Amarante's user avatar
2 votes
2 answers
3k views

Unable to verify my contract on etherscan!

OK firstly hello and thank you to anyone that helps me out here! Below is the code i used to generate my token on Remix! Now I am aware that the IMPORT has a version of 0.6.0 and im hoping that ...
Adam Nightingale's user avatar
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0 answers
131 views

Error! Unable to generate Contract ByteCode and ABI in BSCSCAN - I've been trying to verify this for the past 3 days Please help

/** *Submitted for verification at BscScan.com on 2021-06-06 */ // SPDX-License-Identifier: MIT /** Little Cockroach (LCRS) - What do you get at the end of a joint of dick weed? Cock ...
sam argu's user avatar
1 vote
0 answers
225 views

Why the contract verification using truffle is failing?

I have deployed a smart contract on BSC test net and it is successfully being verified using the following code truffle run verify PancakeFactory --network testnet but it fails if I do it like this ...
Azeem Lodhi's user avatar
1 vote
2 answers
3k views

Checking whether a contract is verified on Etherscan or BSCscan through an API?

I've been trying to write a script to monitor new pairs created on Pancakeswap to see if there are tokens worth investing into. However I've noticed that 80% + of those are scams, and most of the time ...
Cosine's user avatar
  • 21
1 vote
2 answers
982 views

Someone can help to verify smart contract on Etherscan?

Here is source code of this smart contract ! http://dweb.link/ipfs/QmNxz54r9DfNqqgm9h7oJp52QgTPesbnGQ4PpppkSBjwH8 Complier version : 0.5.16 What I tried: Deployed successfully but can not verify on ...
Antonio's user avatar
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1 answer
338 views

Can not verify source code on Etherscan (ERC721 contract)?

pragma solidity ^0.7.0; import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/release-v3.4/contracts/token/ERC721/ERC721.sol"; import "https://github.com/OpenZeppelin/...
Antonio's user avatar
  • 23
1 vote
0 answers
17 views

Verification system for vaccination, medicine [closed]

Project Idea, Need Guidance. Verification system for vaccination. Vaccination confirmation per individual, multiple times, different locations. Can also be used for ticketing, voucher confirmation, ...
BeyondGalaxy's user avatar
0 votes
1 answer
141 views

Truffle-plugin-verify says passed but still unverified on BSCscan

Contracts deployed via Truffle are not properly verifying on the mainnet. On my end it says verification passed but on the website it's still unverified. I've been able to deploy and verify the same ...
Shiny's user avatar
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3 answers
4k views

Verifying token contract on Rinkeby etherscan

I am testing my new token contract on Rinkeby. The contract was compiled and deployed using Brownie. I am deploying the token to Rinkeby and it is compiled and deployed correctly. However, when I try ...
Zaid Amir's user avatar
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0 answers
26 views

How to Submit 0.4.10 Sol version Contracts to Etherscan for Verification

I am trying to verify a Solidity Contract I wrote using Remix written in Solidity version 0.4.10.The problem is that Etherscan wont allow me to select Solidity Version 0.4.10 for my Project.
Ninja's user avatar
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2 votes
1 answer
247 views

Do miners have to verify blocks?

I want to know whether the bottom layer of Ethereum requires miners to verify blocks? The reason for this problem is that I have been thinking about a scenario of blockchain transaction verification ...
wei wang's user avatar
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0 answers
108 views

What exactly does the miner verify in the process of verifying the transaction?

I have seen different answers to this question. For example, one transaction calls a function on a smart contract. Some people say that the miner uses the same input to verify that the output is the ...
wei wang's user avatar
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1 vote
1 answer
69 views

Why miners choose to verify the transactions of the incoming block?

I want to know whether miners can get rewards for verifying transactions in blocks broadcast by other nodes? If there is no reward, why would miners choose to verify transactions? I am very confused ...
wei wang's user avatar
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1 answer
362 views

Can miners choose not to verify transactions in blocks broadcast by other nodes?

When we execute a function on a smart contract, the transaction will be verified by all miners in the entire network before being written to the blockchain. I want to know no matter how complicated ...
wei wang's user avatar
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1 answer
120 views

When we get the execution result of the smart contract, has this result been verified by the entire network?

When we get the execution result of a function in the smart contract, has this result been verified by the entire network? In other words, when the user obtains the execution result of the smart ...
wei wang's user avatar
  • 437
3 votes
2 answers
483 views

Can I change the comments in a contract and still pass Etherscan verification?

Suppose that you have a contract, someone audited it, and you would like to use that specific version for compilation and deployment to Ethereum. Now, you want to verify the source code on Etherscan, ...
Paul Razvan Berg's user avatar
4 votes
1 answer
220 views

Difference between SMTChecker and Manticore?

Why would I use Trail of Bits' Manticore over SMTChecker, which is baked in the Solidity compiler?
Paul Razvan Berg's user avatar
5 votes
1 answer
2k views

SPDX license when importing other people's contracts

Since Solidity 0.6.8, the compiler started throwing warnings if a contract isn't annotated with a SPDX license identifier: // SPDX-License-Identifier: MIT contract MyContract { ... } Suppose ...
Paul Razvan Berg's user avatar
0 votes
1 answer
2k views

Can't verify contract on etherscan - unable to locate a matching bytecode (err_code_2)

As the title says I cannot verify my smart contract on Etherscan. I read all the solutions from similar threads with no luck. I'm getting the following error : Error! Unable to generate Contract ...
user3362334's user avatar
-1 votes
1 answer
184 views

Transacting with a verified contract (code+ABI); yet, no function displayed in the tx input data

Looking at the transaction overview in etherscan, the "Input Data:" field is only a big Hex value; I was expecting to see the function I was calling...
Arxis75's user avatar
  • 31
1 vote
1 answer
184 views

Cannot verify Solidity contract code on etherscan.io

I am unable to verify the contract below on Etherscan. No errors in Remix. I tried all of the solutions recommended in answers to similar questions, which were: Remove the ^ in pragma Compile ...
René K's user avatar
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1 vote
1 answer
48 views

How is verification of transformation of raw values done on the blockchain

Is there a solution to verifying a transformation of raw values on the blockchain available? Example: You have a (private, permissioned) blockchain solution to verify how many apples you have in your ...
bergben's user avatar
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0 votes
1 answer
278 views

Verify simple smart contract on etherscan

I'm having trouble with verification of smart contracts and some ERC20 tokens. The only tokens I was able to verify were the ones derived from ERC20Detailed. Here's a simple contract that I found on ...
awni's user avatar
  • 1
0 votes
1 answer
135 views

cannot verify the contract address because of compiler version 0.4.9 not available in etherscan verify contract

My compiler version is solidity 0.4.9, but i am not able to verify my contract address on etherscan verify contract, the reason is 0.4.9 is not in the list compilers...please tell me the solution to ...
M Zeeshan Haider's user avatar
1 vote
0 answers
16 views

Does a verified deployer contract implies that it's child token contract is also verified upon creation? [duplicate]

Token address: https://etherscan.io/token/0x12b19d3e2ccc14da04fae33e63652ce469b3f2fd Contract address: https://etherscan.io/address/0x12b19d3e2ccc14da04fae33e63652ce469b3f2fd Deployer contract: ...
Crypto de Grote's user avatar
0 votes
1 answer
359 views

Is a contract verified and safe if it's created by a verified contract?

The contract source code is not verified as you can see in the picture, but the contract was created by another contract code which is verified. Does that mean that the contract code from the picture ...
Crypto de Grote's user avatar
2 votes
0 answers
176 views

How to verify a contract in etherscan older than 0.4.11?

It seems that the verification feature of Etherscan supports contracts written since Solidity 0.4.11. I want to verify a contract written with Solidity 0.4.8. Is this possible? I'm wondering if this ...
elopio's user avatar
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2 votes
0 answers
834 views

Etherscan verification bytecodes don't match

Hi I'm trying to verify a token deployed at 0x87ab739464881af0011052d4ca0b0d657e8c3b48 in tx 0xbaa8f3fe86a35d2e0b7ed16b24782743e7dfb1eb21cfbb12253d0a50ef2ff365. (Mainnet) I compiled and deployed it ...
Jordi Estapé Canal's user avatar
0 votes
1 answer
882 views

Problem in contract verification through EtherScan API

Contract source verification through these APIs is putting it 'pending in queue' and not getting confirmed. This interface is also behaving same. I tried it with rinkeby and kovan. Here it works ...
Aniket's user avatar
  • 3,545
1 vote
0 answers
86 views

How to verify access of child contracts?

I am using a factory A to produce child contracts. Now I want to guarantee that only these child contracts have access to a different contract B. Using the factory as a proxy is somehow a detour as I ...
Olympus's user avatar
  • 31
0 votes
1 answer
868 views

Can't see the source code with the new Etherscan user interface?

everyone! A few days ago, Etherscan has updated their user interface - and now I have no idea, how to get the verified contract's source. Before it was located no the #readContract tab, but now there'...
Sergey Potekhin's user avatar
1 vote
0 answers
159 views

Etherscan Verifying Contract Code: Error! Constructor arguments provided but might be unncessary because source code contains a public constructor

I'm trying to verify my solidity code through etherscan but it gave me this Error! Constructor arguments provided but might be unncessary because source code contains a public constructor. Tip: ...
bandrosCake's user avatar
2 votes
1 answer
267 views

Why do compiler version and version in the source code not fit together for some verified contracts on Etherscan?

I found this verified contract on Etherscan: https://etherscan.io/address/0xd7a27d8d58f0c9e378fb3cb2816bde94c5e34059#code Etherscan says, it was compiled with solc version v0.4.14+commit.c2215d46, ...
hefeleal's user avatar
  • 147
1 vote
1 answer
460 views

How can I get the ABI Encoded constructor argument to verify my TOKEN on etherscan.io? [duplicate]

I'm exhausted of researching about the Constructor Arguments ABI-Encoded, it seems very confused. Can somebody help me? ...So, this is the code: pragma solidity ^0.4.16; contract owned { address ...
Ben CryptoKing's user avatar
2 votes
2 answers
360 views

How to authenticate a smart contract

my Question is, how the identity of a smart contract can be verified, or basically how to authenticate a contract. As far as I know a contract does not have a private key and also cannot keep one, ...
Johannes K's user avatar
0 votes
2 answers
735 views

How to test the following contract

I read a research paper for verification and validation of solidity code Here's a link:)! The code is given below: contract MyBank { mapping (address)uint) balances; function Deposit() { ...
zak100's user avatar
  • 1,406
2 votes
1 answer
46 views

Ethereum shape analysis

I am currently researching about the formal verification of smart contracts. I am surprised that I did not manage to find a paper about the (shape) analysis of the storage of a contract. Is there in ...
Briomkez's user avatar
  • 1,894
6 votes
3 answers
977 views

Inability to verify contract with ABIEncoderV2 on Etherscan

Yesterday I deployed a contract to Ropsten (https://ropsten.etherscan.io/address/0x1fe59c223fa4e9781237f0f49a15ca598069cc30) that relies on V2 of the ABI encoder. Thus it includes statement pragma ...
jijordre's user avatar
1 vote
0 answers
211 views

Etherscan: Verify and Publish Source Code - Error! Library Name and Address was provided but not used in the contract

Tried to verify my Smart Contract on Etherscan for Ropsten. Smart Contract is a library which actually also imports another library (which is already verified). Getting following error Error! The ...
Senju's user avatar
  • 701
1 vote
1 answer
597 views

What if I don't verify a contract?

I have a question, what if I have a simple contract that has a public function "give something to this adress" and that will be called from a website I will put it on-chain but will not verify it ...
Michael Narper's user avatar
1 vote
1 answer
81 views

Looking for good guide on how to deploy and verify source code of Smart Contract using Truffle/Remix

Can't really find good guides on how to deploy and verify smart contracts to testnetwork Ropsten. Would like to deploy multifile smart contracts including libraries. Are there any good HowTos already? ...
Senju's user avatar
  • 701
2 votes
1 answer
105 views

Is the Solidity specification still its compiler?

I'm currently reading some literature about verification of smart contracts. One of the papers I read is Defining the Ethereum Virtual Machine for Interactive Theorem Provers by Hirai (pirapira). In ...
Briomkez's user avatar
  • 1,894
0 votes
2 answers
3k views

How to find ABI and verify my contract

When I try to verify my contract , it returned: Note: Contract was created during TxHash# 0x8a13fd16a810e886266d49addf46e459847d583528f966561e45abdd34a13e14 Result: Does not match the input creation ...
solo ye's user avatar
1 vote
2 answers
316 views

How does a miner verify the output of a smart contract?

I am new to Ethereum and smart contracts. I understand ethereum is modeled as a state machine and smart contracts work as "agents" to change the state through transactions. However, it seems rather ...
user2051548's user avatar
0 votes
2 answers
555 views

How do I find out what compiler version was used to deploy with MyEtherWallet

If I deploy a contract on MyEtherWallet.com how can I find out what compiler version was used, for verifying the code on etherscan, etc.?
John Murphy's user avatar
1 vote
1 answer
529 views

Miner and Validator, who can validate a contract?

I am still confused with the process from creation to validation of transaction or contract verification. Actually the terminology makes me confused such as voter, validation, miner, honest node, ...
JongH's user avatar
  • 73
1 vote
1 answer
855 views

Publish and Verify the source code of a contract created by another contract on etherscan [duplicate]

This is the main contract which has been verified succesfully: https://ropsten.etherscan.io/address/0xc4c89dd46524c6f704e92a9cd012a3ebadadff36 This is the created contract I can't get verified: https:...
user avatar
0 votes
1 answer
223 views

Failed to verify contract source code due to timeout/memory limit

Failed to verify contract deployed through remix on Ropsten network both using optimization and without it. Error is: Exception #1 Occured: ERROR|The Contract solidity compilation has exceeded the ...
PATAPOsha's user avatar
  • 101