> For the complete documentation index, see [llms.txt](https://cll-devrel.gitbook.io/bootcamp-2024/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://cll-devrel.gitbook.io/bootcamp-2024/2.-smart-contract-and-solidity-fundamentals/blockchain-explorer.md).

# Blockchain Explorer

### Prominent Blockchain Explorers

As we have seen previously, blockchain explorers provide a [GUI](https://en.wikipedia.org/wiki/Graphical_user_interface) that can query, validate, and report on transactions recorded in the blockchain. In this section we will show some of the important features available to blockchain developers. 

Returning to the logs for our transactions in the Remix IDE, we can view where the contract is deployed on the blockchain.

<figure><img src="/files/2MlX2A3SxnjbelQsE0uY" alt=""><figcaption><p>Example of Etherscan link</p></figcaption></figure>

Here we can view the transaction with which we deployed the contract. However, this is just the record for us deploying a contract, it is not the contract itself.&#x20;

<figure><img src="/files/g7LLF3mEYZmAVT31n5R9" alt=""><figcaption><p>Example Etherscan Transaction display</p></figcaption></figure>

In order to go to our contract, we would need to copy the contract address from our deployed tab on the left side of remix selecting the copy icon next to the pin and trash icons.  You'll note that in the Transaction Details view above, the "To:" address is our smart contract's address!  So you can click on that directly if you want. Or do the below\...

<figure><img src="/files/uJWsXo5t9wQ2K4aS0vHX" alt=""><figcaption><p>Example copy contract address</p></figcaption></figure>

We can then paste that address into Etherscan to quickly find and navigate to that address

<figure><img src="/files/8duobLq9Tof87MRE5m0L" alt=""><figcaption><p>Example Address Search</p></figcaption></figure>

<figure><img src="/files/7SthMf2qFSqdiVEZalZI" alt=""><figcaption><p>Example Contract Display in Etherscan</p></figcaption></figure>

This is what the blockchain has recorded for our contract. In the next section we will discuss the validation of source code for contracts.

{% embed url="<https://etherscan.io/>" %}
Mainnet Ethereum Blockchain Explorer
{% endembed %}

{% embed url="<https://sepolia.etherscan.io/>" %}
Sepolia (Testnet) Ethereum Blockchain Explorer
{% endembed %}


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