Questions tagged [replace-by-fee]

describes a mechanism to mark transactions as replaceable until they are confirmed.

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Increase a transaction fee in bitcoin core

I marked my transaction with "Request replace-By-Fee"* in my bitcoin core wallet, and now while I can increase the transaction fee, I can only increase it by a tiny bit, and I can't set it to what I ...
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Is “inherited” replace-by-fee signaling implemented as described in BIP125?

From Bip125: Explicit signaling: A transaction is considered to have opted in to allowing replacement of itself if any of its inputs have an nSequence number less than (0xffffffff - 1). ...
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Can RBF be done by a third (or second) party

I've been thinking about the following usecase: could a retailer/merchant offer clients a "no bitcoin fees" option when paying with bitcoin? i.e. if something costs 1 BTC on the site, the user will ...
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Why mark a transaction as RBF (Replace-by-Fee) explicitly?

I could broadcast a second transaction that has the same inputs but a higher fee, without marking the original transaction as replaceable. Miners would most likely favor the second transaction and ...
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Using bitcoind RPC to identify an incoming transaction that has been replaced using BIP125 Replace-By-Fee

In the context of running a web service that accepts payments in Bitcoin, how can we use bitcoind to identify a transaction that has been replaced using BIP125 Replace-By-Fee? When RBF is used, a new ...
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What is a fee market? Does it mean that blocks should be full, esp. after several halvenings?

As we all know, Bitcoin had experienced an unprecedented long-lasting congestion period in 2017. This seems quite horrible to some people generally, but it seems that such phenomenon was on the ...
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1answer
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What incentive do miners have to respect the Replace-By-Fee flag?

Couldn't a miner treat all transactions in their mempool as if they had Replace-By-Fee enabled? After all they could always claim that they hadn't seen the original transaction.
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What will be the fee in $ for a 500$ transaction? [closed]

What will be the fee in $ for a 500$ transaction ?
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Why some transactions disappear from the mempool?

Just before block 537562, I had the following transactions in my mempool: 'a4ca904361952c8a27bcf1fd36e5bc8ccdc5d42ceb72cfba60c017fb9cbbb0e5' '...
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How does one create another transaction when all funds are tied up in an unconfirmed previous transaction?

If I have only one UTXO and I spend from it that's fine, I send myself back the change and that works how I expect it to. However if I want to create a new transaction in the time that the first ...
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How single usage of bitcoin address is resistant to quantum computing _and_ replace-by-fee?

It is often said that if a bitcoin user uses addresses only once, then quantum computer cannot compromise their security since the public key is revealed only when the money are actually spent. But ...
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Wasn't 0-conf more secure than Visa, before blocks got full and RBF was added?

RBF and full blocks make 0-conf useless, because it's easy to override. Wasn't it once useful? I've heard without those it's more secure than Visa in terms of double spending.
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Are there RPC calls for correct RBF calculations in Bitcoin Core?

Imagine I have a "stuck" transaction using Bitcoin Core (with correct BIP125 signalling), and I want to "unstuck" it using RBF. Is there some RPC call for the correct fee calculation? Meaning, is ...
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Can I save stuck bitcoins by creating a completely new transaction? [duplicate]

I tried to make a bitcoin payment but accidently set a too low transaction fee so it got stuck. By now the payment is cancelled so I don't want to do this transaction anymore. Can I now instruct my ...
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Do miners prefer RBF transactions over non-RBF transactions?

Given a replace-by-fee (RBF) transaction and a non-RBF transaction with equal fees, do miners prefer the RBF transaction over the non-RBF one? Or is this entirely up to the particular miner?
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Would replace by fee increase the fee on my transaction?

I have a transaction with a $0.01 fee that has been unconfirmed for almost a day now, I got searching and found the replace-by-fee tools by Peter Todd. I set up a full node with Bitcoin 0.12.0 and it'...
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Is it possible to get CPFP information from full node, without requesting full mempool dump?

I want to get CPFP information out of full node - that is, ancestorsize and ancestorfees - in order to calculate the necessary fee for either CPFP, or RBF if possible. Can I get this information ...
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When closing the channel for LN - how to calculate the fee for the blockchain transaction?

To be clear: Following is not about fees in Lightning Network. Following is about fees on blockchain for transaction which closes the channel in LN. Channel closing transaction can be created months ...
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When a transaction will reject if the fee was to low? [duplicate]

I would like to know when a transaction will reject if the fee was to low to be confimed. If this transaction never will be rejected, what is to do to delete this transaction?
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Increase transaction fee with Bitcoin Core client fails because of no change output. Why?

Context I created a transaction (using the full balance of an output) with the Bitcoin Core Wallet (running as full node). The transaction got into the mempool of major nodes, as expected. I set the ...
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why is this transaction I made being rejected?

I created an RBF transaction and bumped the fee, it was broadcast, no I am trying to bump the fee again a 2nd time however I get a "missing inputs error" Am I doing something wrong? here is the tx I ...
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Low fee Electrum wallet transaction disappeared, now when I increase the fee it seems to be rejected as a double spend

Can anyone tell me what is happening with my transactions ... First I move some small amount and didn't see that fee was set up to low so it was "low fee" after that I've made another one and It get ...
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1answer
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What restrictions are there to the application of opt-in RBF?

It is a common meme in some parts of the Bitcoin sphere that RBF erodes the option of accepting zero confirmation transactions. It would be beneficial if the following questions were answered: What ...
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(RBF) double spend transaction not showing up in searches

On my first ever attempt to send my mined bitcoins from my wallet to a bitcoin exchange site I underestimated the transaction fee that would be required to get the transaction processed. So, following ...
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Bumping unconfirmed transaction with sendrawtransaction [duplicate]

I have a transaction which doesn't confirms for last 3 days and is not most likely going to confirm at all in near future due to a recent situation in mempool. Will it be working if I'll do the ...
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How do I do a manual replace-by-fee in Bitcoin Core?

I made a transaction with too small a fee several days ago; hence, it has not been included in any block. Currently, it is lingering in the mempool. How can I use Bitcoin Core to make a new ...
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1answer
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Sequence number semantics

Reading the following BIPs: 68, 112, 125, I got a few questions about the sematics of sequence numbers. As far as I understood, in version 1 transactions, sequence numbers have the following meaning: ...
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What is the recomended sequence for signalling RBF?

What is the recommended nSequence for signalling RBF transactions? BIP125 says: A transaction is considered to have opted in to allowing replacement of itself if any of its inputs have an ...
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Why most bitcoin wallet apps don't have Replace-by-fee feature?

As a bitcoin user, it seems that Replace-by-fee feature is useful to solve the problem of transactions not confirming because of an insufficient fee. However, as far as in know, most bitcoin wallet ...
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Replace-by-Fee vs Child-pays-for-Parent?

Both RBF and CPFP attempt to solve the problem of transactions not confirming because of an insufficient fee. What are the pros/cons of using one vs the other? Are both currently functional and ...
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What wallets currently support RBF?

What wallets currently support RBF? Is there some workaround if they don't?
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Unconfirmed transaction emptied my electrum wallet. How can I unstuck it?

I was using an old Electrum wallet. I sweeped the wallet in a single transaction for which I had not turned on "dynamic wallet" (RBF) yet. The transaction is still unconfirmed after one week. I cannot ...
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Replaceable transaction or Non-replaceable. How can I identify it from raw transaction?

I created two transactions on Electrum Mac client. The first tranaction is replaceable and the other is non-Replaceable. The followings are the results of get-rawtransaction of the the two ...
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What is the default relaying policy for RBF double spend transactions?

Let's say I broadcast a transation tx0 signaling RBF replaceability. Later on, I realize it has a small amount of fees, so I send another transaction tx1 that spends the same inputs than tx0, but this ...
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Bitcoins unconfirmed even after double spend

I'm very new to bitcoin and recently bought 0.066 bitcoins and transferred them to my electrum wallet. I then transferred them to another wallet but I set the fee too low (40Sat/b) and it was stuck in ...
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How to apply RBF (Replace-by-Fee)

I got a stuck transaction and would like to clear this. I found many information about RBF (Replace-by-Fee) how it works etc. So i think this might be the best option to get my transaction going. ...
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1answer
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How to enable replace-by-fee via command-line in bitcoin-core?

Alright, so I'm convinced replace-by-fee is a good thing. I've read it's opt-in, so how can I enable it in my bitcoin-core wallet? I don't find any flag to pass it when launching it. I want all my ...
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1answer
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What does a merchant need to do to reject RBF transactions

I understand replace-by-fee transactions are no threat to merchants who require multiple confirmations. However many businesses still accept 0 confirmation transactions as a means of improving ...
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1answer
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What is an “insecure transaction type”, as mentioned by Bitcoin Wallet for Android?

I am running Bitcoin Core v0.11.0.0-gd26f951 (64-bit) at home on Ubuntu, and have installed the Bitcoin Wallet for Android on my phone. I sent two transactions from home to my phone: First, Second. ...
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Do unconfirmed transactions expire after some time?

Sometimes confirmation process is very slow. I think that is because of the price of the fee. In that time, is it possible to cancel the unconfirmed transaction and re-send with higher transaction fee?...
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Can someone outline the full pros/cons of the various Replace-By-Fee proposals?

I've done some research myself, but I find that I'm either biased myself, or my sources themselves are biased. Does anyone have an objective analysis of the various proposals and their advantages/...
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How does first seen replace by fee work?

This pull request describes first-seen replace-by-fee. How is it different from normal replace-by-fee, and how does it compare to child-pays-for-parent?