Questions tagged [replace-by-fee]

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

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2 answers
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Is it possible to set RBF as always-on in bitcoind?

I can't seem to find any cli commands for this. Is it even possible? Or does RBF need to be opted into on a per transaction basis? I would just like every transaction sent by my node to be RBF enabled....
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Current RBF adoption?

What's the percentage of on-chain tx having RBF (replace-by-fee) activated the last 30 days? What query could I run against my node to find out? Thanks
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2 answers
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Can I use RBF Protocol to change the value of the transaction?

I understand that we can use RBF Protocol to replace a transaction with higher fees to get the transaction confirmed faster. However, is it possible to use RBF to change the value of the transaction ...
0 votes
0 answers
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Spending an unconfirmed RBF transaction

What happens if a wallet spends an unconfirmed Opt-In Replace-by-fee (BIP125) transaction, but does not flag this spending transaction as Opt-In Replace-by-fee? Receiving wallets would see that ...
0 votes
1 answer
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Exploit vulnerable projects using RBF policy

If a project is vulnerable to some type of RBF policies, how could an attacker exploit this project?
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0 votes
0 answers
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Okay so i sent btc from another wallet to my blockchain wallet since yesterday. It’s been over 16hours now and I haven’t received the btc in my wallet

I sent btc from my bitnob wallet to my newley created blockchain address. It’s been over 16 hours with 115 confirmations and yet the money isn’t in my blockchain walllet. Help anyone?
0 votes
1 answer
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How can I use RBF to replace a transaction sent from Bitcoin Core?

How do I resend a transaction with RBF on a Bitcoin Core node v.19 or v.20. I am running it on Ubuntu.
3 votes
1 answer
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How does RBF (BIP 125) behave, when the unconfirmed UTXOs are being spent?

Let's assume we broadcast transaction A (TXA), signalling Replace-By-Fee as defined in BIP 125. We pay 1 sat/vByte for the transaction. One of the outputs goes to Bob. But Bob immediately spends his ...
0 votes
1 answer
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Multisig and RBF after taproot

Are there any benefits of above setup after taproot is activated that improve privacy in any way? What is the setup? 3of3 multisig address with 0.1 BTC unspent Alice, Bob and Carol own the keys for ...
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1 vote
1 answer
220 views

Will electrum wallet increment the fee automatically or do I have to do it manually?

Although I've broadcasted many transactions via testnet with RBF opted-in ( --rbf true), yet, given different incentives present among the miners of the testnet and of the mainnet, my experience so ...
0 votes
1 answer
374 views

How to do RBF using the Ledger Nano / Ledger Live [duplicate]

Would anyone here please be able to tell me how to do RBF using the ledger nano- I can see the transaction has been stuck for about 12 hours now. The TX is ...
1 vote
0 answers
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Using RBF in python application

I'd like to create transactions within my python application, that support replace-by-fee RBF (BIP125). Apparently, if I want to be able to replace my transaction later on, I need to signal that ...
5 votes
1 answer
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A question about CPFP relaying policy

Let's say I broadcast a transaction tx0 signaling RBF replaceability. Later on, send another transaction tx1 that spends the same inputs of tx0, but this time with higher fees. In this case, tx0 is ...
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1 answer
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Prioritize transaction with low fee [regtest]

Tx1: send '{"bcrt1qgz8qhrqyglh7zu3alssydsfa7wk2auucftfnv3": 0.2}' null "unset" 1.1 { "txid": "d040ebe603f80bdf1a92877efeb2b4a27c32766202aeecf3a969b665a0d4c6d8&...
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1 vote
1 answer
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What are we trying to predict in fee estimation and why?

There are different estimations used in wallets, explorers and other Bitcoin projects. For example: estimatesmartfee in Bitcoin Core This is the fee rate distribution right now according to https://...
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4 votes
1 answer
82 views

Why isn't Replace by fee default for all transactions?

I know it's a wallet implementation and a flag, but when it was introduced why wasn't this change a rule for all transactions so that anyone could RBF if they wanted to instead having had to set the ...
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1 vote
1 answer
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How to test RBF on Testnet?

I'd like to do RBF testing on testnet. I'd like to simulate a transaction with too-low fees, aka "stuck" transaction, and then RBF it in various ways. Problem is, all testnet transactions ...
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1 answer
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Not sure where some of my transaction went

I just made a transaction of 61.80 Euros, but it charged me 88.01, And I'm not sure why. Some background: I'm using a service called HodlHodl to turn my mined bitcoin into money. I use Electrum as my ...
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1 vote
2 answers
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Can Bitcoin transactions actually be reversed/"undone" by the sender by using/abusing the newish "replace-by-fee" feature?

I am watching a live stream of Roger Ver talking about Bitcoin. Yes, I know that a lot of people violently hate him and I will say that I don't like Bitcoin Cash. I sold all mine for Bitcoin very ...
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3 votes
1 answer
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Where can I get a list of stale RBF'd transactions?

I would like to prove that a certain transaction was in the mempool on a certain date before it got replaced via RBF with another transaction. Is there any service that provides this data?
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My Bitcoin transaction remained unconfirmed for 20 days now [duplicate]

I sent a bitcoin transaction from one of my wallets into another wallet meant for trading. Its been 20 days now and the transaction remained unconfirmed. Please I need help because I sent this coin ...
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1 answer
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Replace by Fee- Unconfirmed Transaction

Would anyone here please be able to tell me how to do RBF using the ledger nano- I can see the transaction was RBF and has been stuck for about 24 hours now. The TX is ...
2 votes
1 answer
248 views

Replace-by-fee and re-sending to another address

In Bitcoin Core (or Electrum) When sending a transaction with "Enable Replace-by-fee" checked, is it possible to resend the transaction (before it was mined) with a higher fee AND to another ...
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0 answers
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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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1 vote
1 answer
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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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1 vote
1 answer
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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 ...
2 votes
2 answers
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Why are the fee value and modified fee value always the same?

I do not see any transaction in the mempool having differing values for the fee and modified fee fields. Does nobody modify or accelerate their transactions? How do transactions with modified fees ...
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1 vote
1 answer
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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 ...
0 votes
1 answer
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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 ...
1 vote
1 answer
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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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1 answer
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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 ...
1 vote
2 answers
530 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?
4 votes
1 answer
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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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1 vote
1 answer
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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 &...
3 votes
1 answer
435 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 ...
5 votes
1 answer
155 views

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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2 votes
1 answer
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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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1 vote
1 answer
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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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0 answers
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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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1 vote
1 answer
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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 ...
4 votes
1 answer
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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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1 answer
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What is meant by transaction 'pinning'?

What is meant by the term 'transaction pinning'?
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1 answer
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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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1 answer
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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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1 vote
1 answer
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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 ...
4 votes
1 answer
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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 ...
0 votes
2 answers
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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.
1 vote
2 answers
325 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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0 votes
1 answer
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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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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 ...