Explorer - Getting Started

How to go hands-on with the Ethernow Explorer.

Live Mempool Feed

When you enter the Ethernow.xyz Explorer, you will access the live feed of transactions in the Ethereum mempool.

You will also see the following mempool data:

1. Next Block Gas Estimation tile showing the estimated gas needed to get your transaction on-chain, based on the Blocknative Gas Platform, from 99% to <50%. The lower the probability the lower your likelihood of landing in the next block. This tile also includes the pending block number, its base fee, and the highest gas price included in the block.
2. Incoming Transaction tile that shows new incoming transactions broken down by marketable, underpriced, or blocked.
3. Probability of Inclusion in Next Block tile that shows the pending transactions ordered by gas price and colored by the probability of inclusion into the next block (from 99% to <50%).

Historical Blocks Feed

On the left-hand panel, you will find a list of blocks. The most recent block proposed is at the top. You can scroll through this list to view historical blocks.

This shows you the block number, the number of transactions in the block and how long it has been proposed.

Historical Block Feed

Live Transactions Feed

On the second left-hand panel, you will see a live feed of transactions entering the mempool and you can watch them go from pending to confirmed (or failed, replaced, dropped, etc).

Pending transaction

Confirmed transaction

Customizing Your View of the Live Mempool

You can customize your view of transactions entering the mempool in a few ways.

1. You can view transactions entering the mempool either by higher gas or by newest first.
2. You can toggle your view to only see marketable transactions. Marketable transactions are recent transactions in the mempool priced to be included in the next block.
3. Use filters on the right hand navigation to further customize your view. Learn more about filters here.

Block Summary

You can click on any on-chain block to see more details about its composition.

In the summary view you will find the following information:

Attribute	Description
Block hash	The hash of the block
Block Number	The block number
Finality Status	A finalized block can not be reverted without slashing at least 1/3 of all the validators stake. An unfinalized block can be considered safe (unlikely to be reverted) or unsafe (susceptible to reorgs) depending on how much time has passed. Usually 5 minutes.
Transactions count	The total number of transactions included
Blobs	Number of blobs in the block.
Transaction Fees	Graph showing each transaction in the block and the total fees paid. These are color-coded - dark blue is private, and light blue is public.
Public VS Private ratio	Public transactions (detected in the mempool) versus private transactions (not detected in the mempool).
Timestamp	Timestamp detailing when the block was proposed.
Fee Recipient	Fee Recipient displaying the address that received fees from the transactions in this block.
Base Fee	Base Fee showing the minimum gasUsed multiplier required for a transaction to get included in the block. Expressed in Gwei.
Gas Used	Gas Used displaying the total gas that was used in the block.
Blob Base Fee Per Gas	The blob's base fee, denoted in Gwei.
Blob Gas Used	The total blob gas used by a blob.

Hovering over the Transaction Fees graph will give you each specific transaction's hash, effective gas price, and transaction index (position in block). Clicking on it will lead you to the specific transaction to see additional transaction details.

You can also click on the block to see which transactions were included in the block, in what order they were placed, their gas price and if they were private or not. Note: you can sort your view to only see Private Transactions, to learn more about this read here.

The To address will appear as a label if available. For example in the picture above, MEV Bot, Uniswap Universal Router and Maestro Router 2 are labelled for better human readability. To learn more about our labels, check the list here.

Transaction Details

You will find a Details tab and a JSON tab for all transactions.

Depending on the transaction, you may also see a Rollup tab, a Boost tab, or a Blob tab. More details on each tab below:

Viewing Transaction Details

In the block summary you can click into each transaction to understand further details. The summary view of each transaction includes:

Attribute	Description
Transaction Method Name	When known, the method name is shown. Otherwise, the 4-byte signature is shown.
From	The address that created the transaction.
To	The transaction destination.
Time in Mempool	The time that the transaction spent in the mempool.
Final Block	Block number of the block the transaction landed in.
Block Position	Position of the transaction in the block.
Nonce	The transaction nonce.
Journey	The transactions entire journey in the mempool (cancel / confirmed / dropped / failed / pending / speedup / replaced).
Gas Used	Total gas used for the transaction
Base Fee Per Gas	The blob's base fee, denoted in Gwei.
Max Priority Fee Per Gas	The maximum value for a tip offered to the miner/validator per unit of gas.
Max Fee Per Gas	The blob's base fee, denoted in Gwei.
Gas Price	Effective gas price for the transaction (in Gwei)
Execution Base Fee	The base fee times the gas used.
Execution Priority Fee	The priority fee times the gas used.
Total Execution Fee	Sum of the execution base fee plus the execution priority fee.

Viewing Full JSON Payloads

You can view each transaction's full JSON payload by clicking the "JSON" tab for a specific transaction in Ethernow.

Viewing a Rollup

If the transaction was part of an Optimism or Base rollup a 'rollup' tab will appear.

Here you will see an overview that contains:

• Parent Hash: Equal to the Optimism safe head block hash.

• Timestamp: When the rollup batch was submitted to Ethereum.

• Epoch Number: Ethereum block number used to anchor the state of the Optimism or Base rollup batch.

• Total Transactions: Number of transactions included in the rollup batch.

You will also be able to see a list of transactions that were included in the batch. For each transaction you will see:

• From Address: Initiating Ethereum address.

• To Address: Receiving Ethereum address.

• Value: Amount of ETH transferred.

• Max Fee: The maximum value for the transaction fee (including basefee and tip) offered to the minor/validator per unit of gas.

• Max Priority Fee: The maximum value for a tip offered to the miner/validator per unit of gas.

• Nonce: Sequential number tied to every transaction made by the sender.

• Method ID: 4-byte code derived from the hash of a function's signature in Ethereum smart contracts.

Example of an Optimism transaction rollup tab.

For more details please see the Optimism documentation.

Viewing Blob Details

If the transaction is a blob, a "Blobs" tab will appear in the transaction details view.

Here you will be able to see:

Summary

• Number of Blobs: Each blob can contain 1 to 6 individual blobs.

• Blob Space Used: Includes the total data used by the blob (KiB), the total possible data size of blob, which is the number of blobs multiplied by 128 (KiB) and the % utilization (total data used / total possible data size).

Gas

• Blob Gas Used: The total blob gas used by a blob.

• Gas Used as Calldata: The hypothetical gas used if blob data was calldata instead

• Blob Base Fee Per Gas: The blob's base fee, denoted in Gwei.

• Blob Max Fee Per Gas: The maximum fee a user is willing to pay per blob gas, denoted in Gwei.

Fees

• Blob Fee: The blob base fee multiplied by the blob gas used, denoted in ETH

• Execution Base Fee: The base fee times the gas used.

• Execution Priority Fee: The priority fee times the gas used.

• Total Fee: The blob fee plus the execution base fee plus the execution priority fee.

• Total Fee As Calldata: The hypothetical total transaction cost as calldata.

Blobs (number)

• Versioned Hash: The unique hash of each blob inside a blob transaction.

• Commitment: The unique KZG commitment of each blob.

• Size: The amount of data in a blob, denoted in KiB. Each blob can store up to 128 KiB of data.

For more information on blobs please read this blog post.

Viewing Transaction Boost Details

If the transaction was sent privately using the Transaction Boost RPC endpoint, a "Boost" tab will appear in the transaction details view. Here you will be able to see:

• Final Builder: The builder that landed a block on-chain with the transaction in it.

• Tx Forwarded To: All the OFAs and builders that the transaction was sent to and their receipt status.

• Refund: If there was a refund this will show the amount, the receiving address, and the transaction hash.

Example of a boosted transaction.

This tab will only appear if the transaction was sent via the Transaction Boost RPC endpoint.

Transactions before block height 18193249 (2023-09-22 18:46:11 UTC) may not show mempool data or indicate if it is a private transaction. For historical mempool data please use the Mempool Data Archive.

Filter Panel

Filters are a powerful feature of Ethernow. You can find them on the right hand navigation panel by clicking either these buttons.

They allow you to customize your view of the mempool to only see transactions that are interesting to you. To learn more about what you can do with Filters, go here.

Labeled Addresses

Ethernow labels popular addresses and method signatures to make it easier to watch the mempool in real-time. Address labels are populated from WalletLabels and etherscan.io. Builder addresses are largely based on etherscan mev-builder labeling.

Viewing the Sepolia Testnet

To view the Transaction Explorer on the Sepolia tesnet toggle to "Sepolia" on the upper left hand header.

Questions?

If you have any questions about Ethernow, join our discord.