Questions tagged [mev]

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Is mev-geth analougue to geth?

I was reading about ethereum node impementations and found something about mev-geth, wich is a fork of geth made by flashbots. If i want run a node just to propagate my own transactions and query the ...
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0 votes
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Slight MEV ETH transaction

Thorswap integrates 0x as a liquidity provider on Ethereum. A user reports getting much less than anticipated on this transaction: https://etherscan.io/tx/...
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1 answer
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Flashbots Inclusion of a Mempool Signed Transaction

Hello i'm trying to understand how flashbots Bundles are working. So far i can send a flashbots Bundle with several transactions that i made. But in the official docs it is stated that we can include ...
1 vote
1 answer
27 views

Does sandwich attack work if there are TWO attackers?

In this scenerio, could both attackers turn a profit from this attack? I imagine it would work, but I want to be certain. Tx No. Description Tx0 Attacker 1 trades A for B Tx1 Attacker 2 trades A ...
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1 vote
2 answers
35 views

What is this MEV tx trying to achieve?

For this TX: https://etherscan.io/tx/0x8b0351a83e453e30a8b4ada8adc1ce42dac73c05bc2ba87304906f1eed8a77a2 Seems PunkOTC sent 7 ETH to mev bot and mev bot sent this 7ETH to (Lido: Execution Layer ...
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0 votes
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Protecion against MEV bots reading uncled blocks mempool when using Flashbots RPC

Flasbots' docs (link here) state the following advice to avoid the mentioned uncled block risk: Transactions using Flashbots for frontrunning protection in theory never reach the public mempool and ...
1 vote
1 answer
46 views

What is the difference between Miner Tip and maxPriorityFeePerGas

Yesterday I noticed 2 arbitrage transactions on Uniswap V3 in the same block and pools: 1)https://etherscan.io/tx/0x1933479aad430fc3b0acfb9394d138e62d19d1a15437a52a807ca4af9bad7591 2)https://etherscan....
0 votes
1 answer
114 views

What is the difference between Relay and Builder post Merge in Ethereum?

I was listening to an episode of Bankeless where they were talking about things coming up, post merge. In that episode they mentioned block builders and relayers. The context they mention it was ...
1 vote
1 answer
30 views

Why doesn't ethereum enforce a transaction ordering to prevent MEV?

Why not just enforce ordering by priority fee? Just say a block is invalid if the transactions are out-of-order with respect to their priority fees. That way smart contracts can limit priority fees to ...
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1 vote
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Should contracts enforce waiting 32 slots (1 epoch) between MEV-able functions, now that we're using Proof of Stake?

Context: When Ethereum's consensus used proof of work, a miner of block B would have no guarantees that they would also be a miner of block B + 1. This property is important when considering the ...
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2 votes
1 answer
56 views

What would be implications of Ethereum's merge for MEV searchers?

Within a few days, Ethereum will eventually be transmitted from PoW to PoS. The question is will MEV searchers (who use MEV relay API) need to do any update on their code? (i.e. change relay API ...
3 votes
1 answer
128 views

PBS - How & where do block builders submit their blocks?

With the merge and the change to PoS, there will also be a shift towards PBS. As far as i have researched, any block builder can build blocks with transactions from the mempool. How are these blocks ...
1 vote
1 answer
216 views

Bundle of Transactions

I have been studying some articles about MEVs on the Ethereum network and met FlashBots which provides security for MEV Bots That is a bundle propagation service which receives bundles from searchers ...
0 votes
0 answers
135 views

How to Calculate the Initial Amount for an Arbitrage Trade?

How to Calculate the Initial Amount for an Arbitrage Trade? Here's an arbitrage example https://bscscan.com/tx/0xafba7227e889964f1ee68297191340f0c942f23ca6e8391a290f9fdbc3a50160 Only uniswap v2 is ...
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0 answers
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How to add time-sensitive data to governance proposals?

Many governance contracts use low level calls. In order to allow governance to call any contract, OpenZeppelin's governance bravo executes proposals through targets[i].call{value: values[i]}(calldatas[...
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1 vote
1 answer
153 views

Why miners are not picking my arbitrage trading bot transaction on ethereum.?

Miners not picking my arbitrage trading bot transaction that is sent to miners directly using relay.flashbot.net rpc. And we are also giving reward through block.coinbase.transfer() function and also ...
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0 votes
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351 views

Does block.coinbase.transfer() work for MEV on Avalanche?

I would like to perform MEV transactions on Avalanche, but I am only familiar with using Flashbots for Ethereum mainnet. According to the Flashbots docs only miners running "MEV-Geth" will ...
0 votes
1 answer
433 views

MEV bots contract addresses [duplicate]

how so many MEV bots contract addresses start with many zeros? I understand they do so to use less gas but how they manage to create contracts with such addresses?
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1 vote
1 answer
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Could front-running be mitigated by placing the transaction fee data in the signed bytes?

I'm very much learning. I've just discovered front-running and MEV (not the hard way, luckily). My understanding is that the transactions are reordered based on cloning the transaction and sending it ...
0 votes
2 answers
199 views

Is MEV possible on bitcoin?

Miner Extractable Value (MEV) is a big topic in the life of ethereum users, and it creates an additional revenue source for the miners. Is MEV possible on the bitcoin blockchain as well? And if yes/no,...
0 votes
1 answer
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can i smiulate 2 transactions using .call in web3 or in anyother way?

i want to be able to simulate 2 transactions using .call in web3.js. To see if 1 tx affects the other. I cant find a way to do so. .call only works for 1 at a time and a custome node takes a lot of ...
0 votes
2 answers
123 views

What is the best way to check if the contract has experienced sandwich attacks

I am searching for a convenient way or tool to see if the contract was exploited by frontrunners. I have several smart contracts that expose functions that are suspect to these so-called sandwich ...
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4 votes
1 answer
2k views

Is Miner Extractable Value (MEV) possible on Binance Smart Chain?

Is it possible to arbitrarily order transactions on Binance Smart Chain as is the case on Ethereum to allow for MEV? I could not find anything on google about this topic. I hope it's appropriate to ...
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0 votes
1 answer
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MEV explore flashbots

What's the exact definition of Outlier MEV txs currently in review on Flashbot's MEV-explore dashboard? Does it mean that the transactions there are currently under review and the profit (MEV Tx ...
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2 votes
1 answer
6k views

How do frontrunners / sandwich bots work? How do they affect the price in the pool?

I'm trying to understand how frontrunners work in ERC20-Uniswap. Currently, I don't understand how they can "drain" ETH from a transaction. My understanding is that the price of the pool ...
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8 votes
1 answer
578 views

How does EIP-1559 make Ethereum fees better?

I have a few questions that are mostly related to each other. I don't understand how EIP-1559 makes it a better way than the current one about fees. Since EIP-1559 brings priority fees and miners ...
8 votes
2 answers
506 views

What prevents miners from cooperating and causing intentional chain reorgs?

The top 5 ethereum mining pools currently have more than 60% of the network's hashrate. What prevents these pools from cooperating to cause planned reorgs? There could be many reasons to do it, like ...
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