Questions tagged [deployed-bytecode]
The deployed-bytecode tag has no usage guidance.
30
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Should all method hashes be found in a smart contract's opcodes?
I have a compiled/deployed solidity smart contract for which I have encoded all the functions signatures. (4-byte hashes)
With the deployed bytecode, I have parsed the pushdata into an array for all '...
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53
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Need help understanding 32-bytes difference in contract bytecode
After deploying a contract, I reviewed the comments, rephrased some explanations, added the @author comment on top, then when trying to verify on etherscan, instead of the expected "Nothing to ...
- 277
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44
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Change an Ethereum Fork's source code to update a specific smart contract code while keeping same address? How to do it (on a fork)
I would like to know how we can update a specific smart contract code on an Ethereum fork or Ethereum Classic fork.
The smart contract address should remain the same in order to keep same data storage....
- 317
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30
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Chainlink UpKeep Registration ABI Error Problem
Everytime I try to register my UpKeep on Chainlink Automation, I get this error, "ABI must be of type { "name": string, "inputs": { "name": string, "type": ...
2
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2
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517
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Difference between `bytecode` and `deployedBytecode` (especially for contracts with constructor args)
Suppose I have a contract like
pragma solidity ^0.8.17;
contract MyContract {
constructor(string arg1, uint arg2) {
...
}
...
}
When I compile the solidity contract (actually ...
- 177
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1
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57
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How to make sure that a contract's interface and functionality isn't lost after converting it to byte code?
Since Ethereum contracts are stored on the blockchain as byte code but people will want to understand how to interact with contracts, I wonder if there is enough information stored about contracts on ...
- 163
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39
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"VM Exception while processing transaction: revert code:-32000" when trying to deploy a smart contract from bytecode only
I am trying to copy all new deployed Erc20 smart contracts from eth and deploy them to my local ganache chain for testing. Im copying the bytecode and deploying it to ganache. Approximately 50% of all ...
- 11
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64
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Why am I not able to access the storage of a contract deployed with bytecode?
I'm learning about EVM and I was trying to write a simple smart contract using bytecode only. What the contract is supposed to do is write the number 202 to storage slot 0 read from the storage and ...
- 23
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259
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How can I solve withdraw function not working on a deployed contract which worked on testnet
This is my smart contract and the withdraw function doesn't work , throws a big gas fee amount and seems not to work
// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;
...
1
vote
2
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967
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type(C).creationCode who has access to this?
Who has access to this?
For example, if I call type(SimpleStorage).creationCode, wouldn't this cause an issue because there are a lot of SimpleStorage's
How does the type() function know the specific ...
0
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1
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280
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Does address.code return runtime or creation code
You have three options to retrieve bytecode: type(C).runtimeCode which returns the runtime code of a contract, type(C).creationCode which returns the creation code of a contract and address.code which ...
- 51
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1k
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New contract deployment pattern (0x60c06040)?
I've been monitoring new contract deployments simply by looking for leading 0x60806040 pattern in a transaction's data field (example).
However, I've noticed there is a similar pattern that is less ...
- 145
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32
views
Figure out the address used at construction time for a regular smart contract
Is there anyway to figure out what was the address used at construction time and find it in the bytecode?
For example I know that for libraries they are storing it in the contract in order to be able ...
- 96
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How is it the case that a contract's deployed code is longer than 24.576KB given EIP 170?
The deployed code associated with the contract address 0x05c848E3547Bc3Ccd977B84140FDC917Bfff96a1 is longer than EIP 170 permits (I think?). I know I'm misunderstanding something, but am struggling to ...
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1
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59
views
How much it cost to deploy a smart contract which creates more smart contracts on Ethereum MainNet?
I want to create a smart contract which deploy smart contract to each user who use it "AllUserMetaData", therefore for each user one smart contract will be deploy.
How much does it cost to ...
0
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1
answer
137
views
How do I find token amount on Etherscan after the contract is deployed?
When I copy my connected test address from metamask onto etherscan the test tokens from Ganache do not show up.
After I deploy a contract, there is no etherscan address.
Message: view on etherscan ...
- 51
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vote
1
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236
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Querying an ethereum contract without ABI, with only input bytes
I know some transaction has some input bytes to the contract as specified by Etherscan or a mining pool (for instance, this transaction has input data that looks like 0x000000062de258...9b1d). I know ...
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2k
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How to deploy a bytecode-only contract without an ABI
I see a contract's bytecode on chain that I want to re-deploy almost verbatim, but the issue is that there's no verification -- no ABI or source code. Can I still redeploy this contract to a hardhat ...
- 113
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votes
1
answer
892
views
How to check if transaction is interact with smart contract or deploying smart contract itself?
I'm currently working with go-ethereum,
And unable to use etherscan for this case,
No ABI for me here.
How to check whether if the transaction interacts with/calls a smart contract or deploying the ...
- 157
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1k
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Error! Invalid constructor arguments provided. Please verify that they are in ABI-encoded format
Update: so these 2 lines in my code seem to be causing the problem and removing them got everything to work but I still need to include them so if someone can figure out why they are breaking that ...
- 185
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37
views
Transaction data for contract creation: What's the data before the contract bytecode? [duplicate]
When a contract is deployed, the bytecode of the contract shows in the raw transaction data for the transaction that created the contract, along with constructor arguments after the contract bytecode ...
- 103
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45
views
Is there situation when using constants instead of literal values in the code will make the contract deploy more expensive?
I was reading a smart contract code in solidity and I found some magic numbers (literal values as function arguments or in some expressions).
My first impulse was refactor it to use named constants ...
0
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1
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130
views
Different byteCode generated between block explorer and standard json input
I have deployed a contract and want to verify it, but when I used the same code with same configurations of compiler to verify it, it gave me negative result. Thus I tried to decompile these two ...
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How to look up IPFS url in Ethereum Bytecode meta data
I have a solidity contract that is deployed on the Ethereum mainnet. The contract's bytecode ended with (what I assume to be) an IPFS url
{ipfs}64736f6c634300060c0033
How do I look up this URL on ipfs?...
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votes
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answer
1k
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How to get the actual runtime bytecode from creation bytecode and constructor arguments without deploying
Possible outputs of the Solidity compiler include creation bytecode and deployed (runtime) bytecode. However, this compiled deployed bytecode might not be the same as the one that will actually be ...
- 101
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221
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Several small or one big contract? (deloyment cost)
Does deploying several small contracts use more gas than deploying them as one, bigger contract with the same functions (that don't interact with each other)?
How much is the difference?
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191
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How to publish in ethereum with "imports" ? or how to do?
Hello i have this question in my mind now :
How to publish in ethereum with "imports" ? or how to do ?
why i say this ?
answer : when i wanna "verify and publish Contract Source Code" with a ...
- 39
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answers
243
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Bytecode: Does it Reveal What Language it Was Programmed In?
Does EVM bytecode have some indication to what high-level language it was programmed in?
- 363
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What is the difference between bytecode, init code, deployed bytecode, creation bytecode, and runtime bytecode?
I constantly see different types of bytecode and do not know what each of them are. What are the differences between bytecode, init code, deployed bytecode, creation bytecode, and runtime bytecode?
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What's the difference between solc's bin bytecode versus bin runtime?
Solc says that bin-runtime is the runtime part of the contracts. What exactly is the runtime bytecode part and how does it differ from bin bytecode output?
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