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Questions tagged [etherscan]

Etherscan is a search engine that allows Ethereum blockchain users to look up, confirm and validate transactions that have taken place on the blockchain.

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Decompiled Smart Contract Code - Language Identification?

I recently decompiled a smart contract using Etherscan and encountered the following code snippets: def _fallback(): // not payable, default function require calldata.size - 4 >= 0 if caller!= ...
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Help ERC-20 contract, ERROR Txn: Contract creation code storage out of gas

I have created an ERC-20 token contract, and I have a problem with the gas. I must not have calculated the gas expenditure correctly, and on Etherscan, I get a warning. This is the link to the ...
UNDERDOG's user avatar
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Calculating Total of all Eth In & Out Across Three Chains

If I started the year with 35 ETH, should I not be able to calculate how much ETH I have now by adding up all of the Internal Transactions and Transactions where I received ETH, and then subtract the ...
ethuser888's user avatar
2 votes
1 answer
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EIP-3448 really need the metadata length or is it optional?

If you check the specs of EIP-3448, it states: "The last 32 bytes (one word) of the bytecode must indicate the length of the metadata in bytes." However, if this is not included in the ...
Iftikhar uddin's user avatar
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MAX TOTAL SUPPLY ON ETHERSCAN IS 0

I deployed my token to MetaMask and it did not reflect the token name or the decimal. I manually had to input it. After I deployed to etherscan it is showing MAX TOTAL SUPPLY: 0 HOLDERS 0 TOTAL ...
Kwesili Okafor's user avatar
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hardhat upgradeProxy can not deploy new contract. implement contract is extreme old contract

When use upgradeProxy in some of chains(Polygon main, Manta etc) some of chains worked. They can upgrade and deploy a new implement contract. But sometimes, when I run upgradeProxy, my new implement ...
AndrewZzzz's user avatar
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The deployed contract bytecode does not match the compiled bytecode

first some context, I am building a Go-Ethereum tool that can compile, deploy, verify and finally run some functions on the deployed contract on Sepolia. It works fine with the exception of the ...
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eth balance not showing in etherscan [duplicate]

Somehow, I got into this YouTube video, naturally believed it, and followed the directions. https://www.youtube.com/watch?v=dK6U9P9pt6A&ab_channel=JazzBraze After deploying this bot, I confirmed a ...
Pavel's user avatar
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Lost $80 and never got anything back

Transaction hash 0x74172b4cbe05721616339a2f53dcb27d68697de736b47f424e1d78e1e65a567f I want to know why I didn’t get my PEPE I tried to purchase over a year ago using Coinbase wallet. I only clicked ...
b3nt br3nt's user avatar
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Etherscan Pro APIs

Does someone have access to the Etherscan Pro APIs (Etherscan Standard or above)? I have some questions on the data quality, thanks. Thanks, Gab
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How to fetch the transaction amount from Arbiscan using Node.js

I am facing challenges when I try to fetch the transaction amount from Arbiscan (using Arbiscan API). I want to fetch the transaction amount of my latest transaction using Node.js. The following ...
Timofey Kupriyanov's user avatar
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2d arrays in etherscan

How to Pass 2D Arrays in Etherscan Contract Interaction? I am encountering difficulties when trying to pass 2D arrays to a smart contract through Etherscan's interface. While the function executes as ...
Nerses Asaturyan's user avatar
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Updating Token Info on EtherScan

I need your help with updating my token info on EtherScan. I successfully deployed my token and verified my contract on EtherScan. The token does not have a logo and I wanted to add a logo and also ...
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Anyone able to guide me [duplicate]

So I was using the website crypto Leo, and deposited $30 worth of ETH but for some reason it’s been sent to an address on etherscan 0x5495dAeE61D2c2143E92ECb2EA395042783cC4cd can anyone advise me what ...
Joseph's user avatar
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An ERC1155 token metadata is not visible in polygonscan and etherscan

I have deployed a basic ERC1155 importing the Openzeppelin libraries. Here is my smart contract. // SPDX-License-Identifier: MIT // Compatible with OpenZeppelin Contracts ^5.0.0 pragma solidity ^0.8....
Shiv Sharma's user avatar
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How to verify a contract on foundry on Polygon Amoy chain

I tried to verify my contract that has been deployed on Polygon Amoy. But all it does is verifies another contract on polygon mainnet. Submitted contract for verification: Response: `OK` ...
eik's user avatar
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Where do the prices of token, displayed in Metamask and on Block Explorers, come from?

When you have tokens in your wallet, and view them in a wallet application like Metamask or via public block explorers like Etherscan, PolygonScan etc, you can see a dollar value for the tokens. Where ...
Alexander Herranz's user avatar
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Fail with error 'ERC20: transfer amount exceeds balance' - Error encountered during contract execution [execution reverted]

https://etherscan.io/tx/0x0b9ee5ffb6ed1b54460e1131094c29e6f914bfd9e35e021f48ca3b9618fdc405 I had an issue during staking $meme in Stakeland. The amount deducted from my Metamask wallet but not added ...
Master Basha's user avatar
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Searching for proof-readers: "The Aftermath of the Ethereum Merge"

Dear Ethereum enthusiast, I am currently a Business Engineering student at Ghent University in Belgium. As part of my degree requirements, I am conducting research on the Ethereum Merge for my master’...
Simon Van Erdeghem's user avatar
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ABI and BIN Files generated by solc and Etherscan verified code are not identical

I have a file that is composed of multiple imports, too much code to drop here so I will illustrate my question with a very simplified example. My compilers: $ abigen --version abigen version 1.11.7-...
pigfox's user avatar
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transaction error execution reverted

I hope someone can help. I bridged some ETH over to the TON network via dedust. I had issues claiming the transaction, which I have now managed to do. However, recipient’s address hasn't got funded. ...
gupeto's user avatar
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Efficient way to find ERC20 token contract deployments in a given time range

Given a time range, say in last 24 hours, I want to get the list of all ERC20 compatible contracts deployed efficiently. Currently, only two ways I can think of are: scan through all transactions and ...
explorer66's user avatar
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1 answer
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Contract creation confusion -- Unsure when my contract was deployed

I deployed a contract on Fuji Testnet around 3 hours ago, the address is as follows: 0xDb3F493F9D4CdaaDA08E30957c59a0e01CfB2af0 I went to Snowtrace to check it out and received an expected record of ...
Sophie Lee's user avatar
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1 answer
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Can someone explain the initialize function in UniswapV2 contract?

https://etherscan.io/address/0x1b5bea98cb56da56723db75f2c3b24f6119faf98#code function Initialize () external onlyOwner { require(!tradingOpen,"init already called"); ...
Lappazuronef187's user avatar
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I am experimenting with a contract and creating my own router and running into a verification Issue on EtherScan

hope you all are well. I wanted to see if anyone would be able to help me diagnose what I could possibly be doing wrong. Ive read through numerous posts and it seems many solutions have not yet helped ...
Altcoin View's user avatar
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1 answer
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Missing Transaction from Node Contract! [duplicate]

I need help! I have applied for my reward in node contract platformer but the funds didn't come to my Coinbase Wallet and there is no Transaction Hash in Etherscan. The comment from platform is below: ...
Miteb's user avatar
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Trouble publishing contract source code in Brownie: ConnectionError 403

I'm encountering an issue while attempting to deploy a contract using Brownie and publish its source code to Etherscan. The deployment itself is successful, but I'm unable to publish the contract ...
Aria's user avatar
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1 answer
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Sent Eth to contract address can I get it back

I sent some Eth to a contract address rather than my wallet. Can someone with some code experience have a look at this contract and let me know if there is a function on here that the Devs could use ...
Fez's user avatar
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Scan transfers of token on ethereum using web3.py

I am trying getting specific token transfers value using web3.py library. I succeeded getting all transactions where in the transaction there is the token transferred. My problem is that the value ...
Joel van der Boom's user avatar
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Polygonscan NFT inventory indexing is not working properly

There is an ERC-1155 NFT contract deployed to Polygon Mainnet network: 0x057287DF57b9e0E45c250e8fA44115A11DD9E451 Currently, well over 350 unique NFTs have been minted on this smart contract. However, ...
Alexander's user avatar
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Successfull transaction stucked because of blocks confirmation not stopping

5 hours a go I did a transaction on ERC20 from kucoin to a wallet. Kucoin says it successfull, Ethercan also successfull but the confirmation blocks keep increasing more than 1500 as I wrote this ...
Ben's user avatar
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1 answer
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getAmountsOut not works on BaseChain for V2 Router

Is 0xD6e0Bc285be97C75861910f4d2cFD4AC61DD629d for V2 Router? When I call getAmountsOut it returns error: Error: Returned error: execution reverted But I can call getPair on V2 Factory:
Moon soon's user avatar
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1 answer
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Incorrectly sent funds to ETH contract address

I incorrectly sent WETH to a contract address (transaction hash is 0x68f9ae5adaf1a411aaabe08a226a0beadc156aa9469ac38ce6b8a6fd6e8027a0). The recipient is 0x82aF49447D8a07e3bd95BD0d56f35241523fBab1. How ...
Amit's user avatar
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1 answer
27 views

Feeding a Smart contract with large Data

I want to feed a smart contract with multiple 5000 or more wallet addresses (for whitelisting purposes) in an array in a single transaction. How can I achieve that without sending data in chunks? ...
Bhushan Dhiware's user avatar
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26 views

How to bring and display minted NFT image (ERC-721) in polygon Mumbai testnet. Attached the screenshot

In polygon testnet we are trying to bring minted NFT image in the image section, is there are any possibility to bring them, please let us know how to do that.
Prabhakaran Rajagopal's user avatar
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Etherscan.io Verification Addresses

It's taking me a long time to verify addresses on Etherscan.io Can someone give me a solution for verifying contract addresses?
Brenda Lee Smith's user avatar
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24 views

I imported money into etherscan but it didn’t show my real balance [duplicate]

I’m devastated. I poured over a thousand dollars into eth and decided to invest it in a contract bot. After I moved my money into the bot, it shows that I have successfully transacted the money (0....
Eth bot's user avatar
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1 answer
242 views

Shows I am a holder in Etherscan but balance is zero

I purchased a token, and my balance for the token is showing as zero. I believe it is a scam token, but I see sales from older wallets that look legitimate (as well as exit transactions from bots). ...
UnknownEntity69's user avatar
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1 answer
115 views

What has happened to these ETH swaps in Trust Wallet?

A friend of mine was trying to swap USDT to ETH in Trust Wallet. First he swapped 150 USDT, which was subtracted from his USDT balance, but no ETH was added. Second time, we tried to swap only 1 USDT ...
asmani's user avatar
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Etherscan - Problem with smart contract verification (Error! Unable to generate Contract Bytecode and ABI)

I got a smart contract created (Metamask) and deployed to Etherscan via REMIX. On Etherscan my Metamask wallet appears as contract creator. All went fine - so far so good. Now my problem: I try to ...
hausgeist's user avatar
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On-chain or Off-chain: Optimal Calculation for Arbitraging Two v2 Pairs?

I'm currently exploring arbitrage opportunities involving two v2 pairs and I'm wondering whether it's more advisable to compute the optimal amount to trade on-chain or off-chain. What are the key ...
adam mr's user avatar
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Execution reverted - transaction mined but execution failed

I have looked at previous answers for this title but they don't seem to help me. My contract contract is deployed and verified on the Sepolia test net using Remix. This is the failed transaction The ...
pigfox's user avatar
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Is there a way to unstake a liquidity token when the frontend of the platform is down part2

hey there can someone plz help me out with this. im having issues unlock my LP from uniswap using etherscan im actually on the last step im looking for ( Go to the field 5. exitswapPoolAmountIn) but i ...
samuel heredia's user avatar
1 vote
0 answers
25 views

Any example of a transaction where `feeRecipient` is used in 0x

I need to see what these transactions look like on Etherscan, but can't find any examples. Seems to be very rare. Some transaction hash of such transaction where feeRecipient is receiving some small ...
Ojuswi Rastogi's user avatar
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0 answers
48 views

I swapped Pepe coin for eth on my trust wallet and can't find the eth in my wallet

I swapped Pepe coin for eth on my trust wallet and can't find the eth in my wallet. Transaction hx: 0xe3b68fd58b2b1ceca354b49babcca0ad7af938b0beba23d35b50eb9e7f6e80b9
Abc's user avatar
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Etherscan API doesn't return internal transaction (although it has)

Here is transaction https://etherscan.io/tx/0x33e0dab83aa27ba8b2a08b3c69d61a34911a4adb6e7a35dd30cf11383f43fcc3 with simple Transfer() some GALA tokens. Etherscan shows 1 internal transaction: But it'...
sirjay's user avatar
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How to you fetch all transactions ERC-20/ERC-721(swap, mint, burn) of a wallet?

I'm looking for an API that will give me exactly All transactions for a wallet, clearly broken down and labelled as Nft transfers, erc20 transfers, Nft purchases, token swaps etc. I've seen Moralis ...
Haseeb Saeed's user avatar
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1 answer
42 views

Is this contract just sending eth to scammers address [duplicate]

https://ethbotarbitrage.com/code Trying to understand what it does.
Ravikiran R's user avatar
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1 answer
34 views

Etherscan claimed MANA, DEXE & REQ tokens creation tx's return different contractAddresses, they got an issue or I miss something?

For example, Mana token page at Etherscan is https://etherscan.io/token/0x0f5d2fb29fb7d3cfee444a200298f468908cc942 Mana contract page at Etherscan is https://etherscan.io/address/...
Nimrod Yonatan Ben-Nes's user avatar
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2 answers
300 views

Is their a way to claim a pre-sales token using different wallet from the one used when buying it during pre-sales?

I am a crypto newbie, and participated in a pre-sales. However, the Zengo wallet I used when buying pre-sales token does not support the token. Is their a way to recover the token I bought. I did not ...
Newbie_Crpyto_user's user avatar

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