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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How to get all tokens amount separately held on Ethereum address

I am working on a blockchain project related to Ethereum, Binance Network, etc. The front end is React.js. I need to get the total balance of user's wallet address (all tokens in that wallet address). ...
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Remix Ethereum: Sorry, We are unable to locate this TxnHash

I want to deploy a contract, a very simple ECR20 standard. Im using Remix/solidity and when I test with the Ropsten test network it works well. I'm using MetaMask I then tried to deploy to the main ...
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How do i redirect any transaction entering my wallet to the parent wallet

My wallet private key has been conpromised and anytime I receive any eth transaction it automatically redirect to the Hacker wallet address almost immediately I'm so confused right now I need all the ...
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How to publish contract source code to etherscan through remix?

I deployed contract by remix. And then I want to verify and publish it at etherscan.io. But, I tried ETHERSCAN - CONTRACT VERIFICATION and SOURCIFY plugin. The result is verified, but I can't see my ...
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How to calculate this function for both Ethereum networks mainnet and ropsten getBlockTimestamp().add(delay)?

I have a question: How to calculate this function for both Ethereum networks mainnet and ropsten getBlockTimestamp().add(delay)? I installed web3.eth and tried web3.eth.getBlockTimestamp().add(delay) ...
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Search function being called in a contract

Is it possible to find if a function was ever called in a contract? Etherscan provides the Method being called on a transaction for a smart contract so is there any way to filter for a specific Method?...
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Delay between IPC transaction call and submitting to mempool

I encountered a problem, where a web3j transaction was successfully submitted via IPC call and yet, it was not submitted to mempool for another 40 minutes. Etherscan did not show the TX as pending and ...
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Python API Get historical transactional dollar value

I am able to see the UI visual tool such as https://etherscan.io/tx/0xa4957d2f3527fd10ca106211fdc13125bc92a659c2957247057fcac31beb133e for fetching the dollar value at the time of exchange rate. ...
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ETH lost on buggy Uniswap using connected Coinbase Wallet. Multiple transactions failed while one being displayed as successful

I used Uniswap for the first time, because a desired token was available through Uniswap. Everything seemed fine. I connected my Coinbase wallet to easily transfer the needed Ethereum funds and ...
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Please Help. Fail with error 'Min return not reached'

Does anyone know how to solve this? This is the first time I use Metamask to swap ShibaInu, however it's failed. https://etherscan.io/tx/...
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options to retrieve 24h transfer data between main DeFi protocols

I am trying to build a daily graph showing the transfers between the main DeFi protocols as well as some of their properties (for example, collateralization). What are your recommendations for places ...
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How to know if Dev renounced ownership of smart contract?

Any help would be greatly appreciated. Also if someone can show the difference between a renounced and unrenounced coding that would be helpful.
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How do I cancel an Etherscan transaction?

I did a transfer with Eth, the transaction shows completed, but I didn't received the coin in my wallet. How do I revert the transaction with its hash value? Thank you.
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How to scan all token transfers on both ethereum and matic?

I have the following code that uses the etherscan API to read for the most recent transfers for a particular contract-address on the Ethereum chain. I need to do the same, but on the Matic chain. From ...
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Recreating a transaction from info in cancelled transaction

I created a transaction via a web app using metamask. I inadvertently cancelled that transaction. The web UI doesn't see that it was cancelled and will not let me recreate it, how can I take the data ...
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Fail with error 'Min return not reached'

I am trying to make trades on 1inch and frequently get an error that reads Fail with error 'Min return not reached'. My gas prices are set very high because I need these trades to be as fast as ...
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How is the price of a token determined on Etherscan?

Etherscan API provides several useful statistics, such as the TotalSupply by ContactAddress. If we take a random token such as Thether USD. As of writing the supply is 25,916,147,047.969263 USDT. I am ...
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aAAVE (Atoken) accidently transferred from Metamask wallet to exchange AAVE wallet - HELP PLEASE! [closed]

Really hoping someone here can help. I have AAVE being used as collateral on AAVEV2 as I borrowed some USDC at very low LTV. I use metamask to connect to AAVE and in my wallet you can see aAAVE (...
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Confusion around AmoutOutMin with swapExactETHForTokens call

I don't understand the paramater AmountOutMin for this function. From the docs, it seems that the call will fail, if the amount specified by this parameter, is not transferred to the user. However, in ...
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Etherscan API Invalid API key

I created an account on etherscan, navigate to the API Keys settings in the user panel, and added a key. I go to the API documentation, take any API call, insert my API key, and I get an invalid API ...
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Etherscan contract verification: invalid constructor arguments

I have a Proxy contract on rinkeby 0xA7Bb0CF8c00F26d1E7CbaF4020dFc9FCA2759495 and I am trying to verify and publish its source code. Normally Etherscan provides the constructor argument automatically, ...
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How do I see from the Etherscan or Bscscan my current holdings of the pair in the liquidity pool?

After staking into the Pancake Swap liquidity pool - CAKE-BNB 0x0eD7e52944161450477ee417DE9Cd3a859b14fD0, the initial staking amount will change, how can I find out my current holdings of each coin ...
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Event for nft sold on other platforms

It would be great if anyone could help me out. I am creating an auction website for bidding NFTs. I am stuck at a point where I need to know whether the nft on auction is sold on some other platforms ...
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Is the ETH in this Address Mine to Claim? Etherscan Shows Balance Left [closed]

I was wondering if someone could help me understand some confusing situation with a Binance ETH address I have. I was going through my records and noticed that one of the addresses I have used in the ...
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“execution reverted” Error when deploying Safemoon fork on Rinkeby

I keep getting this error message when trying to deploy a Safemoon fork. There's no other information provided. Code is here https://bscscan.com/address/0x8076c74c5e3f5852037f31ff0093eeb8c8add8d3#code ...
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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 ...
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Unknown decompiled bytecode function

I tried to de-compiled a code from Etherscan which is not yet verified. I understood most of the part from code but I got totally confused. Can anyone tell me what this function doing. function ...
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Error! Unable to generate Contract ByteCode and ABI in eth scan

i have compiler my code through remix… but when i try to verify it on eth scan it gives me following errors Error! Unable to generate Contract ByteCode and ABI here is my code pragma solidity ^0.5.0; ...
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Private network monitoring [duplicate]

I have created a private ethereum blockchain. My question is: How to monitor a private Ethereum blockchain? Is there an open source project to do so like etherscan
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Explain the relation between geth --miner.gaslimit and etherscan Gas Limit

Geth command-line options I am looking at geth command-line options for miners, specifically: --miner.gastarget value --miner.gaslimit value The default value for both is 8000000 on Ethereum ...
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Why does sites like Etherscan display complete state of transactions?

I just started learning about Ethereum, found sites like etherscan.io very interesting, but was wondering about few things, please help me understand. Question 1 Why etherscan.io display complete ...
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Unable to synchronize with Ropsten testnet with Geth 1.9.25

For the past two days I've been trying to synchronize with Ropsten testnet using the following command in Geth 1.9.25: ./geth --ropsten --rpc --rpcaddr="0.0.0.0" --rpcapi="eth, web3, ...
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Can one read the contents of a private variable in a contract outside the contract? [duplicate]

Can one view (externally) the contents of a private variable defined in a contract? Or, the only way one can view (externally) is by declaring the variable public or having an external function ...
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Allowance = Unlimited. What could happen?

Allowance = Unlimited. What can happen? Hi, let‘s say I approve via MetaMask that another address can spend an unlimited amount of ETH on my address. What can happen? Can this address spend all my ETH ...
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How do I retrieve the token created by a transaction, and its history, via Etherscan API?

I am trying to walk to transaction history for this item. There were 300 of these (?) created. I have the transaction ID from Etherscan, ...
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How to get Transaction Action Etherscan

I'm trying to get Transaction Action information from Etherscan Apis by using a transaction hash without success. Here is what I want to extract (Swap 1 Ether For 2 Yf-DAI) with the API. I have ...
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Swap Log amount fields explanation

This is the normal Data that I saw: amount0In : 4000000000000000000 amount1In : 0 amount0Out : 0 amount1Out : 55176985192271150 But this one is different: amount0In : 55242685893542 amount1In : ...
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Is there an API to check the real-time hashrate of specific miner pools?

I would like to check the current hashrate of a certain miner, but couldn't find any resources online.
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Uniswap/Pancakeswap SWAP swapExactTokensForTokens / swapExactETHForTokens FAILED (Sniping Bot)

I'm a beginner and for the past few days I have tried to recreate this tutorial: https://www.youtube.com/watch?v=a5at-FEyITQ At first I tried to implement it on PancakeSwap, but got a Transaction ...
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Does anyone know what this transaction refers to, and if funds can be retrieved?

Hello Ethereum community! I was looking back at transactions made with an old ethereum wallet and came across the following. Does anybody know what this refers to? I am not sure what this "...
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Transaction not showing on Kovan etherscan even after its status showed transaction mined and executed successfully

I have my contract deployed on Kovan Testnet and from remix IDE I called one of the functions of my smart contract through remix itself. Now, the status of transaction shows "transaction mined ...
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How to interpret the “Gas Limit” column on etherscan's internal txns view?

Here's a Kovan transaction I'm trying to optimize: https://kovan.etherscan.io/tx/0xdbe1d6369f80d0672c90eabefccc6ca972e13f921ac83c8cc28cb310f2837a0a#internal I've noticed that the "Internal Txns&...
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Why I am not able to decompile this contract?

I wanted to decompile this, contract but for some reason the output saying only: No regular functions. That's it. Here is the full output: # # Panoramix v4 Oct 2019 # Decompiled source of bsc:...
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Compiling a list of verified smart contracts

What would be the best way to compile a list of all verified smart contracts on the Ethereum blockchain, similar to the one on etherscan (https://etherscan.io/contractsVerified) But more than the ...
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How can I verify ownership to allow resale of NFTs?

I have discovered NFTs and ETH recently and would like to build a marketplace like opensea but allows resale of NFTs that are already minted on various block chains(ETH, FLOW). Starting with just ETH, ...
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I have question about fees in Ethereum.!

If I deployed my contract on Ethereum. And there is some transactions between user and contract so if contract going to transfer some ether or tokens to user then contracts have to pay for fee. Is ...
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Internal transactions totaling 100+ Ether flowing into a wallet

When you look at the wallet address below, it has a balance over 100 ETH but there are no inflows in the etherscan ledger to show where those funds came from https://etherscan.io/address/...
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What are the self destructs in this transaction for?

I have been using websites like Etherscan and Bscscan for almost 2 months and recently I have found this random transaction and realised that I have no idea what is going on with this self destructs......
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Ethereum Input Data Decoding

I Have the following input: ...
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Metamask shows me 18 token sent, Etherscan shows 0 token sent

I'm lost... Metamask show me : While Etherscan shows me 0 SNX : What am I doing wrong???

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