flashbots / pm Goto Github PK
View Code? Open in Web Editor NEWEverything there is to know about Flashbots
Everything there is to know about Flashbots
The link to pokt.network in README.md
is treated as a relative link because it is missing a URI scheme. This brings it to a non-existent file in the repository named pokt.network
. I forked and changed the link, but I haven't submitted a pull request, because CONTRIBUTING.md
said to submit an issue first.
MEV Ship Treasure Map Roast 11
Date: Thursday, Jan 28
Time: 11:30am EST / 8:30am PST / 4:30pm UTC / 12:30am China Standard Time
Conference Link | Slides | Flashbots Calendar
Part 1. Privacy for MEV Minimization (65min)
Each Roast we will invite MEV Ship research collective members to present MEV-related projects they are working on or interesting early stage proposals for community feedback.
Part 2. Workshop: How to achieve full-privacy in creating seal-bid MEV Auction? (25min)
More resources:
Past MEV Roasts recaps | MEV Research Vault
MEV Ship Treasure Map Roast X
Date: Thursday, Jan 14
Time: 11:30am EST / 8:30am PST / 4:30pm UTC / 12:30am China Standard Time
Conference Link | Slides | Flashbots Calendar
I am trying to use getConflictingBundle endpoint and always get this error when my txs are 100% sure not reverting, doesn't make any sense .
With getConflictingBundle however, this error happening almost everytime , even for bundles which were included!
What's this all about ? There is nothing on the documentation providing insights into this but seems like some issue with the way flashbots is simulating the transaction ?
It looks like there're some chances that a transaction could be included as a normal transaction sometimes. I guess it might be caused that the transaction was firstly included in a block but the block became uncle block after a reorg. Transactions in the uncle block was put into the pending tx pool and was included later as a normal block.
Any idea to solve this problem?
Hello everyone:
Please help me with a question:
Flashbots is an open research collective, and is committed to iterate in the public. This is our third monthly Community Call, where we share the latest progress, and how as a developer, researcher, miner, DeFi trader / bot operator in the ecosystem can get involved.
Flashbots Community Call & Flashbots Dashboard Release
Time: 9am PT / noon ET / 3pm UTC on May 13, 2021
Conference Link | Slides | Transparency Report | Flashbots Calendar
Flashbots is an open research collective, and is committed to iterate in the public. This is our first monthly Community Call, where we share the latest progress, and how as a developer, researcher, miner, DeFi trader / bot operator in the ecosystem can get involved.
Flashbots Community Call & MEV Searcher Workshop
Time: 9am PT / noon ET / 3pm UTC on Apr 15, 2021
Conference Link | Slides | Flashbots Calendar
Sneak Peek Preview of Flashbots Transparency Dashboard (15min)
AMA (15min)
Is there any list of miners for fastMode , can get such info from doc or discord .
The reason is after testing fastMode more than 30 days with 50+ tx , it look like only [Ethermine] mined my fastMode tx.
Thanks.
The current searchers onboarding document contains a broken link to the flashbots/simple-arbitrage project:
Simple-arbitrage-searcher example bot we've open-sourced here: simple-arbitrage-searcher
The link currently points to the guides
directory but it should probably point to the actual project: flashbots/simple-arbitrage.
One of the long-running desires of many in the Ethereum protocol community is to add some form of account abstraction. Account abstraction (see also: this video where I talk about the concept) is the idea that instead of every transaction needing to start from an "externally-owned account" (EOA) controlled by a private key, transactions could start directly from contracts (and EOAs could eventually even be deprecated entirely).
There are many use cases for this: smart contract wallets (eg. see here where I make the case for social recovery wallets), privacy-preserving tools like Tornado Cash, etc. Today, smart contract wallets are difficult to use because a transaction must start from an EOA, and the EOA must pay the gas fees, so someone using a smart contract wallet must have some of their ETH in an EOA to pay for gas, adding significant complexity (and wasted gas). Centralized relayers can mitigate this to some extent, but some inefficiency ultimately still remains.
Flashbots can solve this! Flashbots is basically a very powerful and more efficient generalized and decentralized relayer protocol, and it should be possible to build a plugin to turn it into a relayer for smart contract wallets:
target
, calldata
and gaslimit
(or an array of each, if they want to make multiple calls)fee
, a quantity of ETH that the wallet sends to the block.coinbase
(post-EIP-1559 this could be extended to max_total_fee
and miner_bribe
)There is a lot of room for creativity in what those verification rules could be. One simple option is to check for four conditions:
Another option is more limited but simpler: if the total gaslimit is low enough (eg. under 400000?), the system could simply check that the block.coinbase
's balance increases by a sufficient amount during transaction execution. This could allow the privacy-preserving use cases as well as smart contract wallet creation.
This could give us most of the benefits of account abstraction without needing to make deep changes to the Ethereum protocol itself (eg. EIP 2938), and so it seems worth making a serious effort to explore and implement.
@notice Disclaimer: this is not legal advice, I am not a lawyer / attorney / barrister. **
@note 'Application' refers to the flashbots network and relay
An early draft as discussed in #65, formalizing policies and relationships are important both on-chain and off. However the principles outlined here do not cover the commodification of the flashbots service, that is to say it focuses more on facilitating fair market structure than implementing effective guidelines that clearly prohibit certain actions as stated in the proposal itself:
Originally posted by thegostep April 14, 2021
(...)
Fair Market Principles for MEV is required in the Flashbots Alpha due to the technical limitations in the early stage of the project which are mitigated on the basis of trust. Flashbots aims to eliminate these trust requirements in future releases of the system.
Block producers connected to the Flashbots Alpha are expected to act in the best interest of the Flashbots network, the Ethereum network, and its various stakeholders. Namely, the Flashbots network aims to uphold the properties of fairness, efficiency, transparency, and permissionlessness. Block producers participating in the Flashbots Alpha are expected to collaborate in the development of an ecosystem for MEV extraction which reinforces the security and stability of the Ethereum network.
In the event of a breach of these principles by one of the block producers, the Flashbots core devs may act on behalf of stakeholders in disabling the access to the Flashbots network until the breach is rectified. The Flashbots core devs aim to provide technical support to block producers on a best effort basis to help resolve any technical issues.
Find the full proposal here: https://hackmd.io/@flashbots/fair-market-principles
The following clauses and sections are subjects of interest to the entire community (both flashbots and the greater ethereum ecosystem in general). This is a first pass at outlining a policy framework that is modeled after existing practices (e.g. SLA agreements for B2B).
forbidden actions includes examples of conducts that in principle are always against the law and may result in a prejudice to (flashbot's) interests.
By “user protection” we mean provisions to explicitly forbid activities that may be detrimental to other users of the service. All these options are already per se illegal, but stating them explicitly doesn’t hurt.
Scraping is an automated process by which a software is able to scan and extract targeted information from websites. Although the distinction is not clear cut and most importantly not legally defined, while search engines – such as Google – crawl the web indistinctly to index pages and show them as search results, Scraping is usually targeted at a specific content or at one or more specific websites.
However, scraping is not per se illegal. Therefore, an accommodation should be made in which there is a user registration system whereby people looking to scrape data can be serviced in a separate subsystem/infrastructure so as to not compromise the health and liveness of the primary application.
Suggested addition for users in Australia (also beyond): no relationship of employment, agency or partnership created between the involved parties (this relates to searchers doing sponsored transactions)
(list with specific statements for liability limitation, going deep with examples and statements)
Any losses that are not the direct consequence of a breach of the Terms by the Owner.
Any loss of business opportunities and any other loss, even indirect, that may be incurred by the user (such as, but not limited to, trading losses, loss of revenue, income, profits or anticipated savings, loss of contracts or business relationships, loss of reputation or goodwill, etc.).
Damages or losses resulting from interruptions or malfunctions of the Application due to acts of force majeure, or unforeseen and unforeseeable events and, in any case, independent of the will and beyond the control of the Owner, such as, but not limited to, failures or disruptions of telephone or electrical lines, the Internet and / or other means of transmission, unavailability of websites, strikes, natural disasters, viruses and cyber attacks, interruptions in the delivery of products, third-party services or applications.
Statement that places some responsibility on users to implement sufficient security and malware practices
Limitation of liability to compensation for B2B cases
This first group of forbidden actions includes conducts that in principle are always against the law and may result in a prejudice to (flashbots) interests.
Excessive use
Excessive use of the service
Excessive use of the API
“Acceptable use” statement (also sometimes called forbidden use if framed negatively). This should define what users may do on or with "your application", in order to be able to take actions against them if they violate the rules.
By “user protection” we mean provisions to explicitly forbid activities that may be detrimental to other users of the service. All these options are already per se illegal, but stating them explicitly doesn’t hurt.
End of Draft
Thank you for taking the time to read this,
Sam
Goerli test network faucet didn't money now, please send me some, thank you very much, my address is 0 xb8910d898620ef167651f58d914cfb8ad0b930bd
`const flashbotsProvider = await FlashbotsBundleProvider.create(
provider,
authSigner,
// 使用主网 Flashbots,需要把下面两行删去
'https://relay-sepolia.flashbots.net/',
'sepolia'
);
// EIP 1559 transaction
const transaction0 = {
chainId: 11155111,
type: 2,
to: "0xC1c4301C5bd4eBe2C04817aC815AaceB4DeDA8DB",
value: ethers.utils.parseEther("0.001"),
maxFeePerGas: GWEI * 100n
}
// 5. 创建交易 Bundle
const transactionBundle = [
{
signer: wallet, // ethers signer
transaction: transaction0 // ethers populated transaction object
}
// 也可以加入mempool中签名好的交易(可以是任何人发送的)
// ,{
// signedTransaction: SIGNED_ORACLE_UPDATE_FROM_PENDING_POOL // serialized signed transaction hex
// }
]
// 6. 模拟交易,交易模拟成功后才能执行
// 签名交易
const signedTransactions = await flashbotsProvider.signBundle(transactionBundle)
// 设置交易的目标执行区块(在哪个区块执行)
const targetBlockNumber = (await provider.getBlockNumber()) + 1
// 模拟
const simulation = await flashbotsProvider.simulate(signedTransactions, targetBlockNumber)`
the resualt log :
body: '{"error":"Internal Server Error"}',
Date: Thursday, Feb 25
Time: 11:30am EST / 8:30am PST / 4:30pm UTC / 12:30am China Standard Time
Tl;dr: How large is MEV? Why does MEV matter as a security metric to protocol designers and users? What is the animal mascot for MEV and why is a platypus the correct answer? Follow the release of MEV-explore v0 (explore.flashbots.net) this week, join us on an exploratory tour of MEV with Flashbots & Roast Master Hudson Jameson into the methods and preliminary results of quantifying MEV: from the currently Extracted MEV to the Total Extractable MEV in any given block.
MEV Roast is a monthly tradition from the MEV Pi-rate Ship, a neutral, chain-agnostic, interdisciplinary research collective that supports MEV-related theoretical and empirical research.
Conference Link | Flashbots Calendar | Slides
Part 0: Introduction & Memes (10min)
Part 1. MEV: from A to Z (50min)
Each Roast we will invite MEV Ship research collective members to present insights from MEV-related research they are working on or interesting early stage proposals for community feedback.
Part 2. Roast Questions (30min)
Q1: Can a contract or program be developed that detects different types of MEV and instructs a contract to reverse transactions that front run, censor, or re-order transactions?
Q2: Does MEV include information that hasn’t hit the chain yet, such as a transaction from a separate chain, like Cosmos or Avalanche, that is clearly on it’s way to Ethereum, is there new ways for miners to look at other chain's bridge transactions to get rewarded? Can patterns develop outside of the enclosed main protocol that can influence protocol level actions?
Q3: If a miner is looking at an oracle feed and knows or can delay the oracle data result, is that MEV? Example: Betting on the sports game and a miner can bet on a game’s outcome before the oracle settles the game if they know what the oracle is about to say?
Q4: Have mining pools openly admitted to doing MEV tactics to increase their profits and if so, what position do they take with regards to MEV?
Q5: What is the animal mascot for MEV and why is a platypus the correct answer?
More resources:
Past MEV Roasts recaps | MEV Research Vault
Flashbots is an open research collective, and is committed to iterate in the public. This is our first monthly Community Call, where we share the latest progress, and how as a developer, researcher, miner, DeFi trader / bot operator in the ecosystem can get involved.
Flashbots Community Call & MEV Searcher Workshop
Time: 9am PST / noon EST / 5pm UTC on Mar 4, 2021
Conference Link | Slides | Flashbots Calendar
1. Flashbots Progress Update (30min)
2. MEV Searcher Workshop (30min)
3. AMA
I'm trying to send a flashbot Bundle with several transactions. I use the following code to sign and send a bundle:
const signedTransactions = await flashbotsProvider.signBundle([
{
signer: MyWallet,
transaction: firstTx
},
{
signer: MyWallet,
transaction: secondTx
},
{
signer: MyWallet,
transaction: thirdTx
}]);
const targetBlockNumber = block.number;
const simulation = await flashbotsProvider.simulate(
signedTransactions,
targetBlockNumber + 1
)
console.log(simulation);
console.log("bundleHash: ", simulation.bundleHash);
for (var i = 1; i <= 10; i++) {
console.log(">>>>>> ", i);
const bundleSubmission = await flashbotsProvider.sendRawBundle(
signedTransactions,
targetBlockNumber + i
)
console.log('bundle submitted, waiting', bundleSubmission.bundleHash)
const waitResponse = await bundleSubmission.wait()
console.log(`Wait Response: ${FlashbotsBundleResolution[waitResponse]}`)
if (
waitResponse === FlashbotsBundleResolution.BundleIncluded ||
waitResponse === FlashbotsBundleResolution.AccountNonceTooHigh
) {
console.log('Bundle included!')
process.exit(0)
} else {
console.log(">>>", simulation.bundleHash);
console.log({
bundleStats: await flashbotsProvider.getBundleStats(
simulation.bundleHash,
targetBlockNumber + 1,
),
userStats: await flashbotsProvider.getUserStats(),
})
}
}
The simulation is successful. However, In order to ensure that the bundle can be included, I for loop 10 times to send a new bundle in case the previous bundle fails. It seems that the bundles are not included because they are not sent to the miners(isSentToMiners is false). Why does this happen?
bundleHash: 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
>>>>>> 1
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 2
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 3
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 4
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 5
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 6
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 7
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
>>>>>> 8
bundle submitted, waiting 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
Wait Response: BlockPassedWithoutInclusion
>>> 0x012ca7ac493afc4bf288bb9cde4b49d521d1c12c01d66705d8fbd3bdfb1c6112
{
bundleStats: {
isHighPriority: true,
isSentToMiners: false,
isSimulated: true,
simulatedAt: '2023-02-12T08:03:16.241Z',
submittedAt: '2023-02-12T08:03:16.233Z'
},
userStats: {
all_time_gas_simulated: '',
all_time_miner_payments: '',
is_high_priority: false,
last_1d_gas_simulated: '',
last_1d_miner_payments: '',
last_7d_gas_simulated: '',
last_7d_miner_payments: ''
}
}
MEV Ship Treasure Map Roast VIIII
Date: Wednesday, Dec 16
Time: 1:30pm EST / 10:30am PST / 6:30pm UTC
the documentation says that I can send transactions to the public mempool and flashbot mempool in parallel, but if I do this, then in 100% of cases a transaction from the public pool is executed, even if the private transaction has a higher commission. can you help me?
Hey,
When simulating a bundle
, everything works just fine, however, when submitting it using:
const bundleReceipt = await flashbotsProvider.sendRawBundle(
signedBundle,
targetBlockNumber
);
Then I get the following error message:
{ error: { message: 'unable to decode bundle', code: -32000 } }
I instantiate my
flashbotsProvider
as follows:
const flashbotsProvider = await FlashbotsBundleProvider.create(
await alchemy.config.getProvider(),
new Wallet(process.env.SIGNER_PRIVATE_KEY, alchemy)
);
Any thoughts?
MEV Ship Treasure Map Roast VIII
Date: Wednesday, Nov 25
Time: 1:30pm EST / 10:30am PST / 6:30pm UTC
Subscribe to Flashbots Calendar | MEV Roast Slides
I am attempting eth_sendPrivateTransaction
with transactions which include an accessList
(on ethereum/mainnet).
No matter how much I increase the maxFeePerGas
and maxPriorityFeePerGas
values, these transactions always end up showing "status":"FAILED"
on the Transaction Status API webpage (at https://protect.flashbots.net/tx).
Is there any knows issue around this?
Thanks.
An example transaction:
https://protect.flashbots.net/tx/0x34ae719a2639a3047a2383442acbc315bcef5cd3890a25264b17152bd5a152a6
Date: Friday, Dec 3, 2021
Time: 4:30pm UTC / 11:30am ET / 8:30am PT
Roast Master: Hasu
MEV Roast is a candid discussion on MEV research questions with Flashbots, stemming from the tradition of MEV Pi-rate Ship, a neutral, chain-agnostic, interdisciplinary research collective that supports MEV-related theoretical and empirical research. Agenda will be subject to change, the Roast Master will steer the discussion with Roast Questions.
Zoom Link | Subscribe to Flashbots Calendar
Part 0: Proposer/Builder Separation Context (10min)
Part 1. Treasure Maps (90min)
Each Roast we will invite MEV Ship research collective members to present insights from MEV-related research they are working on or interesting early stage proposals for community feedback.
How PBS works and why it is important to Ethereum
PBS Censorship-resistance Schemes: ... and how to make them
MEV-boost: The closest we can get to PBS without PBS
Part 2: Round Table (50min)
Extra Credit:
Research Paper
More Resources:
Past MEV Roasts recaps | MEV Research Vault | MEV-Explore v0 | Flashbots Transparency Dashboard | Flashbots Writings
Interested in joining the Flashbots metaverse and contributing to MEV research?
Currently both mev-geth repo and ethresearch post instruct miners/mining pool to publish endpoint directly, whereas the implementation of Flashbots alpha suggests registering on MEV-relay.
Date: Thursday, Mar 25
Time: 11am ET / 8am PT / 3pm UTC / 11pm China Standard Time
Roast Master: Vitalik @vbuterin
MEV Roast is a monthly tradition from the MEV Pi-rate Ship, a neutral, chain-agnostic, interdisciplinary research collective that supports MEV-related theoretical and empirical research.
Conference Link | Flashbots Calendar | Slides
Part 0: Introduction & Memes (10min)
Part 1. Treasure Maps (60min)
Each Roast we will invite MEV Ship research collective members to present insights from MEV-related research they are working on or interesting early stage proposals for community feedback.
Presentation 1: Ethereum block space market structure
- Navigator: Leo Zhang & Georgios Konstantopoulos Slides | Post (20min)
Roast Master (20min):
- Q1: How do you expect a switch to PoS would change the MEV landscape? PoS has predictable block times, proposers can see when they will be able to create blocks, and a proposer can try to create a block multiple times before they propose it. How would MEV extraction have to adapt?
- Q2: How would MEV extraction look like in a world with sharding or rollups, where instead of all transactions passing through a single proposer you have different proposers active in different "domains" at the same time?
Presentation 2: A survey of auction mechanisms for potential MEV auction designs
- Navigator: Surya Bakshi & Alejo Salles Slides (15min)
Presentation 3: A seal-bid MEV auction design: MEV-sgx
- Navigator: Robert Miller & Stephane Gosselin Slides (15min)
Roast Master (20min):
- Q3: Are there alternatives to trusted hardware for ensuring privacy and fairness?
Part 2. Explorations (20min)
More Resources:
Past MEV Roasts recaps | MEV Research Vault
Can i get help about this one? Ive done everything allright. Bundle is live, address added, weth added, and when im trying to run NPM Start im getting this:
Send this much WETH 2000000000000000000 get this much profit 4209896913625831308
{
targets: [
'0x1498bd576454159Bb81B5Ce532692a8752D163e8',
'0x7D7E813082eF6c143277c71786e5bE626ec77b20'
],
payloads: [
'0x022c0d9f00000000000000000000000000000000000000000000007f51f83afdf1767bce00000000000000000000000000000000000000000000000000000000000000000000000000000000000000007d7e813082ef6c143277c71786e5be626ec77b2000000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000',
'0x022c0d9f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000562dfc576c76578c000000000000000000000000643d0e4f66ea66639956b18b63654ef41447024600000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000'
]
}
[
{
signer: Wallet {
_isSigner: true,
_signingKey: [Function (anonymous)],
_mnemonic: [Function (anonymous)],
address: '0x44ab46720D8FAcE0BB4377E771Cab211f0BCC208',
provider: null
},
transaction: {
data: '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',
to: '0x643D0e4f66Ea66639956b18b63654ef414470246',
gasLimit: [BigNumber],
gasPrice: [BigNumber]
}
}
]
Error: bad response (status=400, headers={"date":"Thu, 17 Feb 2022 19:39:25 GMT","content-type":"application/json","content-length":"80","connection":"close","x-amzn-requestid":"327b87b5-4a58-419e-aa3f-ccbbf02a7afc","x-amz-apigw-id":"Ns6hMFXuiYcFqhQ=","x-amzn-trace-id":"Root=1-620ea46d-18a5f1f70d774562026e42af;Sampled=0","cf-cache-status":"DYNAMIC","expect-ct":"max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct\"","report-to":"{\"endpoints\":[{\"url\":\"https:\\/\\/a.nel.cloudflare.com\\/report\\/v3?s=4waeiOjdz5UpRBfHVDlG6qRp3J%2F4JttYjSxW%2BrODSU%2B5ixOXQ1WehKLi1uRW%2FZP6XsGY%2FvuwCYHPN4pc9%2FJtqWJiXnxdusQuOfR5sOZWDeTqGnvVRQyyEgEsp8tbCDhmN1frzGo%3D\"}],\"group\":\"cf-nel\",\"max_age\":604800}","nel":"{\"success_fraction\":0,\"report_to\":\"cf-nel\",\"max_age\":604800}","server":"cloudflare","cf-ray":"6df17b4bffba7807-VIE"}, body="{"error":"invalid gas price, 0 gas price txs no longer accepted after eip-1559"}", requestBody="{"method":"eth_callBundle","params":[{"txs":["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"],"blockNumber":"0xd910a3","stateBlockNumber":"latest"}],"id":44,"jsonrpc":"2.0"}", requestMethod="POST", url="https://relay.flashbots.net", code=SERVER_ERROR, version=web/5.0.11)
at Logger.makeError (/home/snnick/Desktop/simple-arbitrage-master/node_modules/@ethersproject/logger/src.ts/index.ts:205:28)
at Logger.throwError (/home/snnick/Desktop/simple-arbitrage-master/node_modules/@ethersproject/logger/src.ts/index.ts:217:20)
at /home/snnick/Desktop/simple-arbitrage-master/node_modules/@ethersproject/web/src.ts/index.ts:251:24
at step (/home/snnick/Desktop/simple-arbitrage-master/node_modules/@ethersproject/web/lib/index.js:33:23)
at Object.next (/home/snnick/Desktop/simple-arbitrage-master/node_modules/@ethersproject/web/lib/index.js:14:53)
at fulfilled (/home/snnick/Desktop/simple-arbitrage-master/node_modules/@ethersproject/web/lib/index.js:5:58)
at processTicksAndRejections (node:internal/process/task_queues:96:5) {
reason: 'bad response',
code: 'SERVER_ERROR',
status: 400,
headers: {
date: 'Thu, 17 Feb 2022 19:39:25 GMT',
'content-type': 'application/json',
'content-length': '80',
connection: 'close',
'x-amzn-requestid': '327b87b5-4a58-419e-aa3f-ccbbf02a7afc',
'x-amz-apigw-id': 'Ns6hMFXuiYcFqhQ=',
'x-amzn-trace-id': 'Root=1-620ea46d-18a5f1f70d774562026e42af;Sampled=0',
'cf-cache-status': 'DYNAMIC',
'expect-ct': 'max-age=604800, report-uri="https://report-uri.cloudflare.com/cdn-cgi/beacon/expect-ct"',
'report-to': '{"endpoints":[{"url":"https:\/\/a.nel.cloudflare.com\/report\/v3?s=4waeiOjdz5UpRBfHVDlG6qRp3J%2F4JttYjSxW%2BrODSU%2B5ixOXQ1WehKLi1uRW%2FZP6XsGY%2FvuwCYHPN4pc9%2FJtqWJiXnxdusQuOfR5sOZWDeTqGnvVRQyyEgEsp8tbCDhmN1frzGo%3D"}],"group":"cf-nel","max_age":604800}',
nel: '{"success_fraction":0,"report_to":"cf-nel","max_age":604800}',
server: 'cloudflare',
'cf-ray': '6df17b4bffba7807-VIE'
},
body: '{"error":"invalid gas price, 0 gas price txs no longer accepted after eip-1559"}',
requestBody: '{"method":"eth_callBundle","params":[{"txs":["0xf90365808082c8c094643d0e4f66ea66639956b18b63654ef41447024680b90304ecd494b30000000000000000000000000000000000000000000000001bc16d674ec800000000000000000000000000000000000000000000000000002ebd3f267e2512d6000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000e000000000000000000000000000000000000000000000000000000000000000020000000000000000000000001498bd576454159bb81b5ce532692a8752d163e80000000000000000000000007d7e813082ef6c143277c71786e5be626ec77b2000000000000000000000000000000000000000000000000000000000000000020000000000000000000000000000000000000000000000000000000000000040000000000000000000000000000000000000000000000000000000000000012000000000000000000000000000000000000000000000000000000000000000a4022c0d9f00000000000000000000000000000000000000000000007f51f83afdf1767bce00000000000000000000000000000000000000000000000000000000000000000000000000000000000000007d7e813082ef6c143277c71786e5be626ec77b20000000000000000000000000000000000000000000000000000000000000008000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000a4022c0d9f0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000562dfc576c76578c000000000000000000000000643d0e4f66ea66639956b18b63654ef41447024600000000000000000000000000000000000000000000000000000000000000800000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001ca03944478c7a81b31d14440c6cd5a29179a9d58eda00cfd9a3abac19c584ca8122a0143ea32e3be8a1bab334474dd50c272603dc14f20393340219b604cc79daf134"],"blockNumber":"0xd910a3","stateBlockNumber":"latest"}],"id":44,"jsonrpc":"2.0"}',
requestMethod: 'POST',
url: 'https://relay.flashbots.net'
I am encountering a signature verification error while trying to send a bundle to the Flashbots relay on the Sepolia testnet. Below are the details of my setup and the error message:
31000000000 wei
6221012
2306378913
{
"to": "0x[HACKED_WALLET_ADDRESS]",
"value": 10000000000000000,
"gas": 21000,
"maxFeePerGas": 33306378913,
"maxPriorityFeePerGas": 31000000000,
"nonce": 0,
"chainId": 11155111
}
2. From Hacked Wallet to Rescue Wallet:
{
"to": "0x[RESCUE_WALLET_ADDRESS]",
"value": 10000000000000000,
"gas": 21000,
"maxFeePerGas": 33306378913,
"maxPriorityFeePerGas": 31000000000,
"nonce": 0,
"chainId": 11155111
}
Signed Transactions
Signed Transaction 1: 0x02f87683...15f817c89e
Signed Transaction 2: 0x02f87683...8eb0624297
Error Message
{
"error": "error in signature check"
}
Payload and Headers
Payload:
{
"jsonrpc": "2.0",
"method": "eth_sendBundle",
"params": [
[
{
"signed_transaction": "0x[signed_transaction_1]"
},
{
"signed_transaction": "0x[signed_transaction_2]"
}
]
],
"id": 1
}
Headers:
{
"Content-Type": "application/json",
"X-Flashbots-Signature": "0x[RELAY_SIGNING_ADDRESS]:0x[signature]"
}
Could you please assist in identifying the cause of this error and how to resolve it? Any guidance would be greatly appreciated.
Thank you.
I got banned from the server,
I was asking for help in identifyng if the smart contract that was shared on twitter was Legit or not!
This is quinn.kin, btw
Pls unban me.
Date: Thursday, May 6
Time: 11:30am ET / 8:30am PT / 3:30pm UTC / 11:30pm China Standard Time
Roast Master: Justin Drake
MEV Roast is a monthly tradition from the MEV Pi-rate Ship, a neutral, chain-agnostic, interdisciplinary research collective that supports MEV-related theoretical and empirical research.
Slides | Watch Stream | Subscribe to Flashbots Calendar
Part 0: Introduction & Memes (10min)
Part 1. MEV and ETH2 (65min)
Each Roast we will invite MEV Ship research collective members to present insights from MEV-related research they are working on or interesting early stage proposals for community feedback.
MEV is Fundamental to Permissionless Systems
MEV and ETH2
MEV and Scaling Ethereum
Part 2: MEV on Rollups and Beyond (75min)
MEV Minimization on L2: solution space & design contraints
From MEV Auction (MEVA) to Sequencer MEV Extraction
Defining the MEV Game on L2
The MEV game on L2: bots, users, sequencers dynamics
Extra Credit: Roast Questions from the Roast Master:
😊 The questions below have purposefully abrasive language to fit the "roast" theme. 😊
More Resources:
Past MEV Roasts recaps | MEV Research Vault | MEV-Explore v0
If one of the transactions in the flashbot bundle fails, will the status of Ethereum be rolled back? For example, if the thrid transaction fails in a bundle, will the first two transactions also be rolled back?
Hi, may I know do you have the MEV GETH on Binance Smart Chain?
As I am running a full node on BSC now, and I hope Flashbots to support Binance Smart Chain because I found many front running MEV happening on Binance Smart Chain too.
With adoption of Proof of stake, flashbots will soon become obsolte and therefore stop to work. Not?
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