Questions tagged [nonce]

A random number that is only used once. It is generated at the beginning of a communication by one communication partner and has to be sent back by the other one in order to prevent replay attacks.

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How is the NONCE determined? [duplicate]

In reading thisthe claim is made that a NONCE is Global Monotonically increasing. But when I browse 2 sequential blocks, I see the nonces are radically different: Block 13999939 Block 13999940 I ...
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What would cause a pending Ethereum tx to not show up on Etherscan?

I am using the Web3 2.0 library to call web3.eth.sendTransaction and send Ether from one address to another. When I check the nonce of my wallet in my program using the following web3 functions, it ...
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Correlation between order of txs in the same block and nonce

I found position index referring the order of txs within a block. Txs are executed in order from position 1 to the end. Is there any correlation btw the position(order of txs) and the nonce of txs? ...
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Does tx run in the order of being included in the block?

When the block is executed, Should the order of txs included in the block be the same as the order of the nonce? Or can it be different? For example, when trying to run three txs (nonce is 1, 2, 3) ...
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whether nonce increases if tx is invalid due to invalid sig

I am wondering that whether nonce increases if tx is invalid due to invalid sig. Based on what I know, the nonce increases even though tx is invalid regarding of the reason of failure. right? If so, ...
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Gnosis safe without safe nonce

Is there any way of creating a Gnosis safe without using "safe nonces" ? I would like to automate certain transactions from a pool of already signed transactions but don't know the order.
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rlp: non-canonical integer (leading zero bytes) for uint64, decoding into (types.LegacyTx).Nonce

I have written a program to send raw transactions via JSON-RPC. It seems to work for existing wallets, but I get this error when I try to send the very first transaction of a new wallet (nonce is zero)...
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How do I get the PoW nonce of a specific block in solidity?

This question doesn't have an answer that shows how to get the PoW nonce for a specific block internally from within Solidity. From my understanding in Ethereum nonce is used for an account's tx ...
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Pending transactions remain pending forever?

I have a pending transaction stucked for more than 24 hours. I have receive advice on how to cancel it already so please do not answer me that advice again. Because it hasn't worked for me. Now my ...
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Why is eth_getTransactionCount nonce incorrect under load?

I'm calling eth_getTransactionCount via JSON RPC, and taking that value and trying to use it as nonce for a RawTransaction to send ETH. I'm running this against a ganache server. This happens in a ...
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Increment transaction count by more than one

With every transaction, the transaction count of an Ethereum address is incremented by one. Is there a way to increment it by a larger number in one step, for example going from 1 to 100 with a single ...
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Ethereum transaction order, nonce, and miner confirmation. Can someone clear it?

I have question that has been bugging me for a while. It's about first order and nonce. First of all when i send multiple transaction in meta mask, they should confirm in sequence if i do not change ...
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Error encountered during contract execution [Out of gas]?

i have this address 0xb5f82127b5067f1019abd362ba812c0ef8196717 as you can see i have 3 transaction failed with this error : Warning! Error encountered during contract execution [Out of gas]. I was ...
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Infura out of sync

I have 13 transactions according to https://ropsten.etherscan.io/address/[my_account] and when I dispatch "eth_getTransactionCount" to https://ropsten.infura.io/v3/[my_project_id] (with &...
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Why is the EVM designed to have "private variables"?

In EVM, one contract is able to read code and balance of any addresses. However, storage and nonce of other addresses is not accessible. Since all states are public on the blockchain, why is EVM ...
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How to correctly set nonce?

on an account with no transaction set yet, using getTransactionCount will return 0. Should I specify the first transaction with nonce 0 or 1? and on the next transactions after the above is mined, ...
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Nonce error after transaction that took 17 hours

A couple of days ago I sent an ERC20 token transaction that confirmed after 17 hours. It didnt fail however the nonce of that transaction was 5. So my next transaction should have the nonce of 6 but ...
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I keep getting nonce is too low when using truffle to call functions on contracts even though this works fine on remix.How can I fix this

I keep getting the nonce is too low when running functions with sub transactions on the kovan test net is there a way I can stop this from happening?these sub transactions are making transactions with ...
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Is there a way to manually set your transaction's position in a block?

I've seen some action on a coin I was monitoring on BSC using poocoin (similar to dextools but for bsc - it shows buys and sells). Whenever there was a big buy/big sell on this coin, there would be an ...
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Metamask retrieve next transaction nonce

I am testing a smart contract that requires a nonce for every single method I invoke. My idea was to use the Metasmask transaction nonce of the connected account, but I do not know how to extract the ...
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Which transaction will go 1st

I was wondering, If I have created two transactions in Ethereum 1st one with x nonce and gas fee 5 gwei. 2nd one with x+1 nonce (as it is automatically assigned by metamask) but with a gas fee 6 gwei. ...
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Does pending account nonce affect truffle contract deployments?

I have pending transactions with nonce 0,1,2,3. I am deploying a contract with truffle-cli, with relatively low gas, but enough for it to deploy, successsfully passes truffle's gas checks. But it just ...
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Bypass pending contracts in contract deployment?

I have 1 contract pending, and 1 contract queued for deployment due to low gas fees. I wish to deploy a 3rd contract that will bypass these two. The first contract has nonce 0. Sufficient gas fees ...
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322 views

'Transaction nonce is too low. Try incrementing the nonce.' while following truffle tutorial

I ran into a nonce error on the last leg of this tutorial : https://www.trufflesuite.com/boxes/flashloan-box I also supplemented the tutorial with this video on yt(fyi b/c some of the code comes from ...
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error: replacement transaction underpriced - Nonce increment? how? Atomic transaction?

trying to send 2 transactions through infura to ropsten smart contract, but got the error: "replacement transaction underpriced". For my understanding its a Nonce increment problem...tried ...
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Seeking clarification on transaction nonce vs. block validation nonce

Apologies if this question is basic. I seek clarification regarding the following paragraph in the ETH design rationale: One weakness of the account paradigm is that in order to prevent replay ...
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Do Data and Nonce both play a role in hash?

If a transaction's hash doesn't change with data it makes blockchain mutable.
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Is there "auto-drop" or "auto-cancel" for a transaction that's not been processed for a long time?

I sent a transaction with relatively low gas and during several days it was pending. Eventually I managed to have it to get through by increasing a gas fee. Other time I send a transaction with a low ...
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nonce in World State

Is the nonce stored in the Ethereum world state explicitly? Acco. to the yellow paper it does. But in "Mastering Ethereum", Andreas writes - However, the nonce is not stored explicitly as ...
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How to fill transaction nounce gap for an EOA?

If for whatever the reason, one transaction submitted (say lost transaction with nonce N) was not mined into block. The consequence is that any transactions submitted after the lost transaction will ...
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399 views

how is it possible to send 5 successful, consecutive transactions at the same time?

I just witnessed something amazing that I didn't think was possible before. I was under the assumption if that you try to submit consecutive transactions, the latest transaction with the highest nonce ...
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What if difficulty exceeds the length of a fixed sha256 hash in proof of work?

Hello im a newbie in Blockchain, i got to know some basics, but im confused that what if the difficulty exceeds the length of a sha256 fixed length string example : The fixed length is here 64 (sha256)...
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Transactions stuck at pending on ropsten test net from one day

I am Writing a simple script for ERC20 token transfer method. which sign transaction offline and then submit it to network. Transfer method encoded data : var encoded = await MyContract.methods ...
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Is it required to use multiple Etherem accounts to send transactions on behalf of customers to avoid pending transactions?

We are developing an Ethereum based exchange. In our project, customers put their orders to send ETH or ERC20 tokens to others, and we currently do these transactions via our Ethereum account on their ...
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Disabling nonce check for go-ethereum for a private test net when using web3js batch requests to send tx

I am using web3js batch.add and batch.execute to send tx for an ethereum private testnet that I have created. I send tx using batch.add and batch.execute (don't prefer to use promises since they ...
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If I have several wallets with the same address, how to deal with nonces?

I access Ethereum from several wallets. Some of the addresses are present in several wallets at once. I discovered that nonces should always increase. (Right?) Then if I send transactions from several ...
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How does NONCE prevent a replay attack in case of knowing NONCE value?

I have a question about a nonce in the Ethereum network. I understand that a nonce helps to prevent a replay attack, but there is one particular part that I don't understand. I have applied my ...
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Are transactions with too high nonce propagated to other nodes from local pool by parity?

I want to understand what happens with tx when I create tx with too high nonce. It's saved in a local queue, but do other nodes get the information about this tx? I don't know, can I remove tx from ...
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Ethereum transaction sent from Ledger Nano X stuck because too low tranasction fee used

My ETH are STUCK. 48 hours ago i sent 31 ETH from my Ledger Nano X to my Coinbase account, but i choose the slowest and cheapest method that was diplayed into my ledger ( I don't remember how much gas ...
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Transaction stuck because of low gas price

i accidentally put the lowest gas price possible when i am about to send my eth.. is there any way to cancel / re-make my transaction?? i have read some articles telling that i should out-gassed my ...
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Can using getTransactionCount() + 1 prevent waiting for pending transactions?

I tested sending multiple transactions with a low time gap, and I knew that they will wait for previous transactions to be confirmed. I did not use Nonce in the transaction code as it is optional. But ...
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Why does proof of work targeted zeros always comes at the start of hash? why is it not in the middle or the end of hash?

My question is why always targeted zeros come at the start of hash of the block? I have never seen more than 2 zeros in middle or somewhere else in the hash of mined block... What's the reason?.... ...
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What's the max number allowed as nonce? [duplicate]

I tried to generate nonce using this formula, so I can avoid 'underpriced' problem and nonce conflicts nonce: web3.utils.toHex( Math.round (Date.now() / 1000 - 1586000000) ), But simply these ...
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Sending tokens out on coinpayments success payment using Web3py

I'm writing Django app and want to send out tokens using Web3 once Coinpayments sends me callback about successfull payment. The problem is that Coinpayments sends multiple callbacks at once and just ...
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Should I use getTransactionCount() result in sendTransaction()? [duplicate]

As I read, getTransactionCount() returns the number of transactions sent from an address. Which of below items should I consider? Not to use returned nonce? Use the returned nonce number as a ...
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254 views

Simulating multiple transactions

I want to simulate sending multiple transactions at the same time to a smart contract and i'm wondering if, for example, sending 100 transactions from one address is the same as sending 1 transaction ...
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What happens with nonce if address have nonempty code and someone submits transaction from that address?

Ethereum Yellow Paper states: nonce: A scalar value equal to the number of transactions sent from this address or, in the case of accounts with associated code, the number of contract-...
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What algorithm is used to generate nonce hash in genesis file?

When looking for information about the nonce property of the genesis file, everything says that it is a 64-bit string hash etc. But which algorithm is used to generate this hash ?
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Can consecutive transactions be mined on same block?

Can consecutive transactions of same EOA (Externally Owned Account) be mined at same block as below? TX1: nonce=0, Number_confrimed_Block=100 TX2: nonce=1, Number_confrimed_Block=100 TX3: nonce=2, ...
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the tx doesn't have the correct nonce. account has nonce of: 12 tx has nonce of: 3 - Ganache

I am trying to run my simple contract with different parameters (in the form of encoded signatures) and intends to put multiple transaction into ONE block. If I set Ganache GUI with automine option, ...