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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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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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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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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Missing Transaction from Node Contract!

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: ...
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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 ...
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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 ...
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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:
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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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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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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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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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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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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 ...
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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 ...
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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 ...
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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
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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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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'...
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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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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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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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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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My friend said he swapped USDT to WBTC on Uniswap but this was the result, can someone explain what happened here please?

https://etherscan.io/tx/0xb124f98eff2955180b828bb5a81dff1c2b0dedff41d3bf102e6dcfa9940881fe This is the link to transaction here.
Bob's user avatar
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Have I lost my my wallet funds [duplicate]

So I transferred my eth from trust into compound.pw but when I go back to it it shows my balance as 0.. my friend who is helping me on this journey has said as I didn’t put £500 in to start with it ...
Lee's user avatar
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How to check if transaction belongs to Uniswap using etherscan api?

I want to check all transaction this address https://etherscan.io/tokentxns?a=0x534a0076fb7c2b1f83fa21497429ad7ad3bd7587 How can I filter Uniswap transaction using etherscan api? I tried filter using ...
Ikenitenine's user avatar
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2 answers
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Stuck ETHs in the contract

This is the contract as you see there's 4.4+ eth there 0x2193B9F2B5E5051E41C32c71B25587D6A6f045C8 I still have ownership of contract. Any way of getting/extracting the eth from there using the creator ...
jiru's user avatar
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Permit and transferFrom function called on an ERC20 which drained a specific token in my wallet

I recently found out I've been drained of around 1600 $ALT tokens in two separate transactions a few days ago. It sucks to lose money, but it sucks even more if you never know how it happened and what ...
Meysam's user avatar
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What we can exactly do with debug_trace_call debug_trace_block_by_number debug_trace_transaction?

Could you please explain in detail the specific functionalities and use cases of debug_trace_call, debug_trace_block_by_number, and debug_trace_transaction and debug_traceCall? I am particularly ...
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Cannot withdraw money from contract [duplicate]

I need some help please. I followed this tutorial: https://www.youtube.com/watch?v=dU3cCZQjTJg and used their code. I created a contract and sent 1 ETH. It did not do what it was supposed to do so I ...
Webby's user avatar
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2 votes
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Is something happening with Ethereum Sepolia (or Etherscan Sepolia)?

I have came across several strange behaviours in the past couple of days with Ethereum Sepolia: While using Web3J in an application of mine, transactions are only processed in batches after a couple ...
PensoGlide's user avatar
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How to write contact from Etherscan

I am trying to interact with this one inch contract 0x1111111254EEB25477B68fb85Ed929f73A960582 on Etherscan. I have never interacted with contacts this way so please start from the basics. I want to ...
Robert Isaacs's user avatar
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Bought tokens on uniswap but balance shows zero

I just bought some tokens on uniswap. trx:https://etherscan.io/tx/0x400e946bd679b82f90f913290ee81aab13ad8a0fd3b3c986a16e55a415bab70d Here is the dextools link for the token I bought. https://www....
Bhawani Katyal's user avatar
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Etherscan does not recognize Remix Flatten contract? Don't know why?

I just tried to verify my token contract in Etherscan with a flattened version of the contract, generated from the Remix feature. It is a standard openzeppelin ERC20 contract and got the following ...
Patupai's user avatar
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Etherscan Sepolia invalid API key

After yesterdays maintenance window I started to see Invalid API Key errors returned from the Etherscan Sepolia API endpoint. This API key I'm using was working before yesterdays maintenance, and any ...
gr347wh173n0r7h's user avatar
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Wrong network at the transaction

I transfered 1000 usdt to ethereum network mistakenly from bnb network and i lost them. Can you help me with the solution to recover them please? i transfered them from binance to revolut
konstantinos's user avatar
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Token swap not working on uniswap v2

I am trying to use web3 to swap tokens in uniswap. My swap ( ETH -> Token) is working correctly, but for some reason the reverse swap ( Token -> ETH) does not seem to work. I am not able to find ...
user130198's user avatar
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183 views

uniswap router address in Goerli testnet

hello guys any body know what is the uniswap router address in Goerli testnet? i checked the following addresses but none of them worked. 0x1f9840a85d5aF5bf1D1762F925BDADdC4201F984 ...
rebwar's user avatar
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how to call swapETHforexactToken in https://goerli.etherscan.io/

first of i deployed a contract address in the https://goerli.etherscan.io/ and i use the uniswap v2 router2 (0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D) in my contract. the token address of the my ...
rebwar's user avatar
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how to find the transaction revert reason

https://dashboard.tenderly.co/tx/bnb/0x0a15f861671369164bc132ad35c9c1128e9fdcd8dc472f706b8c3e1eaf8640db?trace=0.4.2 gas is ok , balance is ok , any other reason?
mitt Kongg's user avatar
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2 answers
301 views

Invalid basescan api key when attempting to verify NFT smart contract via foundry

I've successfully verified contracts on etherscan before, but this time I'm following the "Deploy with Foundry" guide on the Base docs: https://docs.base.org/guides/deploy-with-foundry/ I've ...
thatguyintech's user avatar
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how to find out about all the coins that are on the Ethereum network

how can I find out in real time all the tokens that are on the Ethereum network and get data on prices, volume, etc.
Matveu's user avatar
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Can someone help me to recover my stuck bnb into a contract adress

\accidentally sent my bnb to a coin address transaction hash Oxle440d1811c60ee3c5dbacea50bf9fac2e3c2 e5ce0c02c73fe08c55682825348 instead of sending to my wallet I sent to coin address I checked my bnb ...
John Singh's user avatar
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Can I find the hash using a partial hash address in order to look it up at etherscan.io?

For example 0x0DDF2…e7D19 How can I find/search for the reminder the address? The auto complete feature is no longer available at etherscan.io
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