Questions tagged [replace-by-fee]

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

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0answers
26 views

Can a 0 confirmation Bitcoin Core change output be spent?

I have a Bitcoin Core wallet which has a utxo which I spent from, in a transaction where around 1% was sent to an external wallet address, with the ~99% change output remaining in the wallet, sent to ...
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Regarding Stuck Bitcoin [duplicate]

I made a mistake in Set my Fee to low and it has been stuck for 9 days. What can I do someone please help? I just need some help regarding this matter. I'm a first time user and I just want to make ...
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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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1answer
25 views

What RBF policy will be default on SegWit v1 nodes?

What RBF node policy will be applied by default in order for a SegWit v1 transaction to relay when encountered. Full RBF, or Opt-in RBF?
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1answer
92 views

On my first shopping via bitcoin I get “The fee for this transaction seems unusually high. (20%)” What to do about it?

I have some bitcoins in a local Electrum wallet and wanted to do my first shopping with bitcoin from a shop offering payment via bitpay for an item costing (in USD) 20 dollar. So I went through the ...
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1answer
65 views

Replace-by-fee Problem

Good Day. Please i have an Account with BlockChain but i notice my account has a withdrawal of all my BTC which was not done by me. It has Replace-By-Fee What might have happened? How can i get my ...
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16 views

How many wallets allow the user to change outputs for RBF transaction?

I have not tried this option but read about it on twitter: https://twitter.com/bluewalletio/status/1304358287123648513 Not sure maybe this is the code that creates a transaction with different outputs ...
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1answer
33 views

Monitoring BIP125 transactions in the mempool

Let's say I have a transaction with txid=A which has bip125-replaceable=True. If I bump the fee the original transaction will be removed from the mempool and replaced by the new one, so how do I know ...
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23 views

Why fee value and modified fee value are same in all transactions resting in Mempool?

I can not see any transaction resting in Mempool having different values for Fee and Modified Fee fields? Does it seem nobody has modified or accelerated his/her transaction? I am looking for a way ...
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1answer
555 views
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1answer
35 views

Who bears the transaction fee for settling HTLC in Lightning Network?

Given a channel that exist between Alice and Bob, where Alice wants to transfer 0.0001 BTC to Bob. Alice makes HTLC payment to Bob contingent to the secret for the payment hash within a timelock of ...
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1answer
34 views

Can inputs to a transaction have different values for sequence?

I noticed that the sequence field is used to signal opt-in RBF. I would think that signaling RBF applies to the full transaction rather than particular inputs. If my transaction has two inputs, and I ...
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2answers
14k views

What is replace-by-fee?

https://bitcointalk.org/index.php?topic=199947.0 Can anyone explain what replace-by-fee means?
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1answer
618 views

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?
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2answers
174 views

Checking if transaction is RBF

A transaction can be RBF if itself is a RBF, or it spends outputs from a RBF transaction. Is there a way to use bitcoin RPC node to check if a transaction is spending outputs from a RBF transcation?
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1answer
118 views

Is there a way to allow use of unconfirmed RBF outputs in transaction building?

Bitcoin Core seems to not consider unconfirmed outputs that are marked replaceable in input selection. Is there a way to override this protection and allow use anyway? The transaction is created using ...
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1answer
20 views

getbalance says 0 for incoming TX even though 0-conf is allowed

> $bitcoin_rpc.getnewaddress("myaddress", "bech32") => "bc1q9kvfyjxtk9tvkzgpkf4x8zs42sddwlyanz3z6z" > $bitcoin_rpc.getbalance => 0.0 > $bitcoin_rpc.getbalance("*", 0) => 0.0 &...
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1answer
187 views

Why doesn't RBF include restrictions on the outputs?

Why didn't the RBF specification include additional constraints on the replacing transaction, such as that it would need to contain the same outputs (with at least the original output amounts) as the ...
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3answers
2k views

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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0answers
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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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1answer
50 views

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 ...
2
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1answer
305 views

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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0answers
78 views

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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1answer
53 views

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
41 views

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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1answer
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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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1answer
469 views

Why some transactions disappear from the mempool?

Just before block 537562, I had the following transactions in my mempool: 'a4ca904361952c8a27bcf1fd36e5bc8ccdc5d42ceb72cfba60c017fb9cbbb0e5' '...
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1answer
83 views

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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1answer
58 views

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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2answers
171 views

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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2answers
210 views

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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2answers
113 views

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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1answer
97 views

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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1answer
612 views

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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1answer
73 views

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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1answer
2k views

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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1answer
183 views

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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1answer
2k views

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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1answer
77 views

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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1answer
1k views

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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0answers
255 views

(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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1answer
254 views

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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1answer
253 views

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
596 views

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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1answer
365 views

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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2answers
558 views

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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1answer
6k views

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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3answers
2k views

What wallets currently support RBF?

What wallets currently support RBF? Is there some workaround if they don't?
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770 views

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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3answers
2k views

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 ...