If you're new to developing on Ethereum and unsure where to start, or if you want to learn how to deploy and interact with smart contracts, check out this step-by-step guide.
Source code verification provides transparency for users interacting with smart contracts. By uploading the source code, Etherscan will match the compiled code with that on the blockchain. Just like contracts, a "smart contract" should provide end users with more information on what they are "digitally signing" for and give users an opportunity to audit the code to independently verify that it actually does what it is supposed to do.
Please be informed that advanced settings (e.g. bytecodeHash: "none" or viaIR: "true") can be accessed via Solidity (Standard-Json-Input) verification method. More information can be found under Solidity's "Compiler Input and Output JSON Description" documentation section.
To update token information on Etherscan, the contract address code for the token must be verified. This is to ensure that the contract code is exactly what is being deployed onto the blockchain and also allows the public to audit and read the contract. Etherscan ensures that all token contract must be verified before they can be updated with information submitted by the contract owner.
If you are the contract owner and would like to verify your contract, kindly follow the steps below:
1. Verify and Publish
Under the contract address page, next to the “Token Transfers” tab, you will be able to find the “Contract” tab. Then click on “Verify And Publish.”
Please enter the required information, including the contract name, compiler version, and the complete contract code. Ensure that the contract code is in its deployed form, as a single file (flattened), with all imports removed.
You can also input the optimization options, constructor arguments, and any other libraries at the bottom of the same page.
2a. Contract Verification Success
Upon successful contract verification, you can
Suggest name tag & label for the contract address, and link to website
Prompt our AI-powered Code Reader for security sanity checks (use this for reference only)
View a summary of your verified contract
If you have deployed the same contract (with same address) on other chains, you can now verify your contract on multiple chains with a single API key from Etherscan, instead of creating a new API key on each explorer.
In case of verification error, you'll get details on where it failed with:
Compiler warnings & debug log
Breakdown for difference in bytecode
3. Confirm Contract Details
When the contract has been verified, the “Contract” page will be filled with the contract details. The source code of the contract is now publicly available on Etherscan.
Etherscan is a block explorer for the Ethereum blockchain. It allows users to easily search and browse transactions and blocks. It also provides information about each transaction and block, such as the hash and timestamp. You can think of Etherscan as the Google of Ethereum.
Can I withdraw my funds from Etherscan? No. As a block explorer, we only provide a platform that lets users look up, confirm and validate transactions and other data that are publicly available on the Ethereum blockchain.
Yes, Etherscan is safe to use, but users should still remain vigilant while trading. For example, if you're looking to trade ETH or any other asset with an address that's not known to you, while you might find it on Etherscan itself, it's prudent to look up the wallet's ledger and see if there are no issues.
Etherscan is a blockchain explorer that allows users to access public data related to transactions, smart contracts, addresses, and more on the Ethereum blockchain. Like a search engine, Etherscan allows you to monitor all Ethereum network interactions publicly.
On Etherscan, select Contract > Write Contract. Click Connect to Web3 and connect your wallet using your preferred non-custodial wallet (e.g. MetaMask).
Click Claim and fill in the metadata you found above. Remove all the quotes ( " ) from the merkleProof field.
Etherscan is not a wallet or a wallet service provider, but rather a tool that allows users to explore and understand the Ethereum blockchain in a user-friendly manner.
No, Etherscan does not track the Bitcoin network and its transactions. Etherscan is a blockchain explorer that only queries the data of the Ethereum network. To explore the Bitcoin network, you can use a Bitcoin explorer such as Blockchain.com, Blockstream.info, or Bitcoinexplorer.org.
Once your transaction gets confirmed on the Ethereum network, you cannot cancel it. However, you can effectively cancel transactions still in the Mempool by creating a second transaction with the same nonce (number only used once) but a higher gas fee.
Reporting a cryptocurrency scam can also help you recoup your losses. The sooner you report it, the better the chances of authorities being able to track down the scammers and recover any stolen funds.
➡To call ethereum Support, dial *&# 128242; 1-888-928-2078. Use the automated system to select the Support option and you will be connected to a specialist who can help you with ethereum . ➡For ethereum support, call &# 128242; 1-888-928-2078. Follow the prompts to indicate that you need help with ethereum Desktop.
Once logged into your Etherscan account, navigate to etherscan.io/myapikey in your profile. Click on the "+ Add" button to create a new API key. Once you've created your API key, you can use it to call the free API endpoints and power your dapps with rich data.
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