All Questions
30,499
questions
0
votes
1
answer
11
views
Offline transaction on exchanges
Do cryptocurrency exchanges use offline transactions?And if yes when they use it?Also is offline transactions somehow related to off chain transaction?
- 1
-2
votes
0
answers
16
views
Is BTCfree.win scamming?
As I asked earlier I have two email accounts in BTCfree.win, and I achieved 0.2 free bitcoin during 3 years. On 24th September I withdrawed my bitcoin to my trust wallet address. It took about 1 month ...
- 1
0
votes
0
answers
17
views
BTC Taproot sign transaction
I am new to taproot and trying to create taproot transaction
I am using java library bitcoinj and is only support send to P2TR address and create addresses with witness v1 with some problems which i ...
0
votes
1
answer
31
views
Could the Bitcoin network freeze someone's assets?
Strictly as an example, let's say some businessman owns a lot of Bitcoin, and he makes a disparaging comment online about a certain country that happens to have the majority of Bitcoin miners.
Could ...
- 83
0
votes
0
answers
24
views
What happens when i sent bitcoin to and from same asress in the same transaction
I was trying to withdrawal funds from a website and I copied and pasted the deposit address from my clipboard. It was the adress for the same site to deposit. Now my money is nowhere to be found.
- 1
0
votes
0
answers
18
views
Is there a tool to calculate the appreciation of BTC relative to time of transfer
I tried googling this, but I get a litany of reasons why it would not work instead. This seems trivial to me:
If I have 1 BTC in my wallet when 1 BTC = 100 USD
Then I move 1 BTC into my wallet on the ...
1
vote
1
answer
33
views
Stuck in the middle between unconfirmed transaction and empty wallet
I initially set a low fee to one transaction, trying to cancel the transaction I runned bit coin core with -zapwallettxes and all transactions in bit coin core disappeared. I still can see the ...
1
vote
1
answer
72
views
What is incremental relay feerate?
In an answer to my previous question, Murch used the term: incremental relay feerate.
On first, I thought that's the same as minimum relay fee (minRelayTxFee) - minimum feerate (sat/VB) that ...
- 536
2
votes
1
answer
230
views
What happens when two or more transactions are covered ("hit") by RBF?
RBF (Full RBF, Opt-in Full RBF, FSS-RBF) is applied to a transaction when one of its inputs "matches" one of the inputs in the replacement transaction.
However, what happens if the inputs of ...
- 536
0
votes
0
answers
25
views
Transferring bitcoin to cash [duplicate]
How do you convert bitcoin to cash to deposit to your bank account?
I have a bitcoin account and I want to converts some of my bitcoin to cash to deposit to my bank account.
1
vote
0
answers
26
views
Given a Bitcoin wallet address, can its other addresses be inferred from it? [duplicate]
A bitcoin wallet doesn't have one single address, but several. All these addresses can be obtained from the master public key, am I wrong?
Does knowing one of this addresses (not the master public key,...
- 181
0
votes
0
answers
33
views
Creating a P2SH-P2WPKH Address with Hash160 of Script and Unlocking Script for BCH [closed]
I've created a Pay-to-Script-Hash nested within a Pay-to-Witness-Public-Key-Hash (P2SH-P2WPKH) address on Bitcoin Cash using hash160 of script[OP_0 hash160OfPubkey]. When attempting to spend from this ...
- 123
0
votes
0
answers
17
views
My friend brought BC around 2014 he has forgot details but has an idea of a password. How can he Id his account [duplicate]
He paid for the BC (when it was about 200 a BC) through the bank but doesn't keep statements and we worry the bank won't keep records that long. He has the phone he used to have to possibly buy it and ...
- 1
3
votes
1
answer
29
views
Open Anchor Output channels on CoreLightning
I want to open a channel from my CoreLightning node to my LND node, and I want that channel to use anchor outputs to be used for the channel closing later on.
How can I enforce my CoreLightning node ...
- 671
0
votes
0
answers
33
views
Listunspent does not return all utxos [duplicate]
I am using Bitcoin Core to get all UTXOs for watchonly imported addresses. The strategy is the following:
I load a new wallet
await client.execute("loadwallet", ["testwallet"])
I ...
0
votes
1
answer
32
views
Setting high tx fees (paytxfee, maxtxfee,..)
I am building different tx types on regtest and don't want to care about tx fees.
Here is my bitcoin.config
fallbackfee=100000
paytxfee=100000
maxtxfee=100000
mintxfee=0.1
maxfeerate=100000
I have set ...
- 31
2
votes
2
answers
135
views
What types of RBF exist and which one does Bitcoin Core support and use by default?
As far as I know Bitcoin Core knows two types of RBF. These are Full RBF and Opt-in Full RBF. In both cases, the transaction will be replaced if a new one arrives that consumes at least one of the ...
- 536
2
votes
1
answer
64
views
Why can't I bumpfee a tx with 19 ancestors?
I have a wallet in bitcoin core 25.0 where one transaction has 19 ancestors and no descendants (the transaction IDs are obfuscated by A-T, where T is the most recent):
$ bitcoin-cli ...
- 446
1
vote
1
answer
76
views
P2WSH Bitcoin Core Witness Script Empty Error
I am trying to spend a P2WSH output. Here are the steps I have taken:
I have created a P2WSH output via bitcoin-cli. These are the details of the P2WSH output:
Type
V0_P2WSH
scriptPubKey (asm)
OP_0 ...
-1
votes
0
answers
38
views
Give a nostr user's npub, how can I follow their followers? [closed]
I'm trying to make a function in javascript client side that let's a user enter anyone's npub and then follows their followers. However with nostr-tools it looks like i need the user's private key to ...
- 129
1
vote
0
answers
15
views
Building a CPFP raw transaction to confirm a force-closed Lightning channel [closed]
I am attempting to use bitcoin-cli createrawtransaction to build a CPFP transaction to pay for a low-fee channel close that has been unconfirmed for over a week.
I have all of the details, i.e, txid, ...
- 11
0
votes
0
answers
28
views
I have an old brain wallet phrase but no longer have program which converts it
I see brain wallet online but it uses mouse movement. All I want is a program where I enter the phrase and it gives me back both the public address and the private key. Ideally I should be able to ...
- 135
0
votes
1
answer
70
views
How to buy BTC with a non custodial wallet directly?
I apologize if this question does not make sense.
But please correct me if I'm incorrect.
If someone has a US Bank with a positive balance and has created a wallet using the bitcoin core "bitcoin-...
- 101
2
votes
1
answer
51
views
Which hardware wallets require importation of PSBT for knowledge of multisig set up?
My understanding of a multi-vendor multisig is that certain wallets require importation of the resultant multisig wallet's PSBT information in order to sign multisig transactions. Coldcard's ...
- 255
0
votes
0
answers
16
views
Orphan Blocks in my Debug.log -
My Debug.log shows
2023-10-27 05:48:02 ERROR: CTxMemPool::accept() : nonstandard transaction (scriptpubkey)
2023-10-27 05:48:02 received: tx (421 bytes)
2023-10-27 05:48:02 ERROR: CTxMemPool::accept() ...
0
votes
0
answers
16
views
Finalize inputs for a merged psbt 'Can not finalize input #0'
I have a scenario:
UserA (bc1pmd3tdzucfnpmq2m3d82yzqmht6hp7smfc2g0tze6ywkxn6h258aszxjdn6): wants to sell an inscription. (5d8c42c867f9c09c0a44397ad2c91d73e8ebb7734e75f54f7caba8ea95eba3b6:2)
He signs a ...
- 1
0
votes
0
answers
26
views
Can someone help me with my wallet [duplicate]
I create a wallet on bitcoin.org
Now, i cannot find the way to access my wallet and recover my funds. Can someone help me with that. Thank you !
0
votes
1
answer
30
views
Import old paper backup (WIF private key) into modern Bitcoin-QT
When trying to import a WIF private key into Bitcoin-QT i get this error:
Only legacy wallets are supported by this command (code -4)
How can one import a private key on a non-legacy wallet?
- 1
1
vote
1
answer
41
views
How To Reach My Funds From My Wallet Years Ago
I have a wallet.dat
and a .txt file
inside this txt file
wallet number like : L1aC2...
and a hash like: $bitcoin$64$a2z...
How can I reach to my fund inside this wallet ? I kinda have some memory ...
- 11
-2
votes
0
answers
78
views
Assuming Q* Qualia from OpenAi has achieved AGI and it's able to break AES encryption. How does this affect Bitcoin? [duplicate]
Rumors have that OpenAI has achieved AGI. Assuming its true, and having that Q* Qualia is confirmed real as of today. The leaked documents a few weeks ago states they were able to break AES encryption....
- 11k
0
votes
1
answer
82
views
SHA-256 hashing algorithm
Where in the Bitcoin github repo is the SHA-256 hashing algorithm defined? Is it a methematical formula?
- 165
3
votes
1
answer
224
views
How can I cheaply consolidate P2PKH outputs?
I have thousands of UTXOs that were created for experimental purposes back in 2016, programmatically, using P2PKH transactions, each generating hundreds of 10K-ish sat outputs.
Since these are now ...
- 133
3
votes
0
answers
40
views
How does Ocean’s TIDES payout scheme work?
This week a new mining pool "Ocean" was announced. The mining pool uses a payout scheme called Transparent Index of Distinct Extended Shares (TIDES). The Ocean website describes the scheme ...
- 72.8k
0
votes
1
answer
24
views
Paper Wallet: can I use the import option in my case?
I have created a paper wallet and I generated the public/private keys with Ubuntu live + Electrum. Now I have 2 questions:
In this case, can I IMPORT ( instead of SWEEP ) my keys in electrum and ...
- 101
0
votes
0
answers
17
views
Reflecting Fee? [duplicate]
I'm currently dealing with a case where I am asked to pay a Bitcoin reflecting fee in order to receive my withdrawl amount to my cashapp/bitcoin wallet. It is not currently showing anything pending on ...
- 1
2
votes
1
answer
150
views
Certain spent P2PKH outputs give error: Non-canonical DER signature
Certain rare spent P2PKH outputs give error: Non-canonical DER signature when I try to verify the spent output using both btcdeb (version 5.0.24) and bitcoinconsensus (version 0.20.2, using Rust ...
- 165
-1
votes
0
answers
49
views
Withdrawal bitcoin [closed]
I have two email accounts in BTCfree.win, and I achieved 0.2 free bitcoin during 3 years. On 24th September I withdrawed my bitcoin to my trust wallet address. It took about 1 month from my request ...
- 1
1
vote
1
answer
30
views
Is it possible to use Bitcoin Script to implement a quantum-resistant locking script that would be safe to spend from?
Stewart, I., et. al. (2018). "Committing to quantum resistance: A slow defence for Bitcoin against a fast quantum computing attack" described a method by which funds could be safely moved ...
- 1,014
0
votes
0
answers
24
views
calc Block Header hash
I use the following code to calculate the header hash.
function serializeBlockHeader(blockHeader) {
const version = Buffer.alloc(4);
version.writeUInt32LE(blockHeader.version);
console.log(...
- 3
0
votes
1
answer
40
views
Network fee more than transaction?
I sent 0.0005 btc to my wallet.
Bittrex took 0.0003 btc fee.
In my wallet it says 0.0005btc ,18 usd.
Then it says 0.002btc network fee, 92usd.
But i still have the 0.0005 btc in my wallet.
Who pays ...
0
votes
0
answers
59
views
What are all the consensus rules for the block version value? [duplicate]
I am interested in what are the all consensus rules for block version number in a block header?
Found some answer here.
Andrew Chow said that it can be whatever value we want except some specific ...
- 61
0
votes
0
answers
31
views
Fell for crypto Scam, I NEED HELP [duplicate]
I think I am being scammed right now - I have researched (too late) about this operation and a lot of stories seem to match what is happening to me right now. They made me pay a 30% fee to withdrawal ...
1
vote
1
answer
36
views
How to get a receiving address from Bitcoin Wallet app?
So, I'm trying to obtain my winnings from this online casino OZWIN CASINO, which is based out of Australia, and I'm located in the United States. Problem is that I've never used Bitcoin and I've just ...
- 11
0
votes
0
answers
12
views
bitcoin core. 0/no confirmations, in the memory pool [duplicate]
I ask for help, today I sent bits from my core wallet, everything was as usual.an hour after sending, I checked the transaction in the blockchain and it's not there at all, as if I didn't send it.......
- 1
2
votes
1
answer
117
views
Are all transactions, whether SegWit or non-SegWit, part of the commitment in a coinbase transaction?
A merkle root in a block header is a way to commit all transactions in that block. However, since it does not cover transaction witness data, another commitment needs to be made in a coinbase ...
- 536
0
votes
1
answer
93
views
severity of bitcoin vulnerability to AES crack
In the event that AES is cracked, what are the implications for the consensus layer of bitcoin? What are the implications for user's bitcoin wallets? On average, how many bitcoin would be available to ...
- 1,493
0
votes
0
answers
34
views
Where is the custody with lightning node?
I wrapped my head about LN a bit with LND and voltage ressources but regarding the custody I don't really get it. With bitcoin it's stateless as one can have the utxo's key and sign offline and just ...
- 400
0
votes
1
answer
35
views
Impact of Future Blocks on Bitcoin
The Bitcoin protocol limits the timestamp of future blocks to be at most 2 hours greater than the current time. If this time limit were increased, let's say to 8 hours, what impact would it have on ...
- 3
0
votes
1
answer
51
views
What am I doing wrong in calculating Merkle root of the block with only 2 transactions (block #99997)?
I want to learn how to calculate the Merkle root so I started from a simple example, a block with only 2 transactions (block #99997). However, I ran into a problem.
Mempool online block explorer says ...
- 61
0
votes
0
answers
16
views
different mainnet address types [duplicate]
1-ltc can transfer from p2pkh L-address to p2sh deprecated 3-address?
2-ltc can transfer from p2pkh L-address to p2sh new M-address?
3-ltc can transfer from p2pkh L-address to native segwit bech32 ...
- 1