All Questions
29,662
questions
0
votes
1
answer
15
views
What happens if I `sendrawtransaction` but tx is invalid?
I manually select from my UTXOs, sign the tx (offline programmatical signing, not with wallet) and only interact with bitcoind when I call sendrawtransaction. But in the meantime another process might ...
- 443
0
votes
0
answers
13
views
Minimal value for xprv
If we have "smallest" (all characters minimal ASCII) pub address 1111111111111111111114oLvT2 which does not work in the network,
and smallest pub address 111111111111111111112BEH2ro which ...
- 113
0
votes
0
answers
9
views
Resolving duplicate blocks in a custom Node.js blockchain using sockets
I've implemented a custom blockchain in Node.js, where each node communicates using sockets. Currently, when two miners mine the same transaction, they both add it to their chain and share the block ...
- 1
0
votes
1
answer
17
views
python bitcoin_explorer can't read block 761249
I installed bitcoin node, synced up to date.
I am using python bitcoin_explorer to read the block data.
I can read all blocks, however, I can't read block 761249
I am not sure it's my syncing problem, ...
- 1
0
votes
0
answers
12
views
signrawtransactionwithwallet for a multisig-transaction, after getnewaddress
I created a descriptor wallet in bitcoin core 24.
Next, I created a new address with using getnewaddress.
I took pubkey of that address, and used it as one of the three pubkeys when generating a ...
- 193
0
votes
0
answers
8
views
Lightning LND Anon memory growing OOM
I'm running an Umbrel Node and seems to have a memory consumption problem which results in a weekly OOM and followed by a LND restart.
To be honest I don't know what I did wrong, as my node was ...
- 31
0
votes
1
answer
24
views
How to setup Alby wallet for testnet bitcoins
I'm trying to test out the Alby wallet. I wanted to test it's working with fake testnet bitcoins (tBTC).
I tried to follow this guide:
https://github.com/getAlby/lightning-browser-extension/wiki/Test-...
0
votes
0
answers
21
views
stuck transaction in ride the lightning on chain transaction
This transaction was send in ride the lighting on chain transaction, it has zero confirmation, how do I send it out, or cancel the transaction?
0
votes
0
answers
13
views
How to display {block number} instead {date value} on Wordpress posts?
Ideally, the goal is to show the block number (ie: 782667) instead of the date value (ie: 26 March 2023 4:44PM CT) on all wordpress posts and pages that currently display it.
There's maybe a script we ...
- 121
0
votes
0
answers
10
views
How we can display Woocommerce Products prices in Bitcoin or Satoshis?
In a WooCommerce website, we aim to display the product prices in satoshi/bitcoin based on the current market value. Ideally we don't want to use any existing plugin and we are looking to get the ...
- 121
2
votes
1
answer
44
views
Comparison between CPFP and BIP125 for fee bumping
As far as I understood so far, CPFP and BIP125 are both designed to help spenders to make new transactions using an input of an unconfirmed transaction by paying the cost. The most well known use case ...
- 793
1
vote
0
answers
14
views
How to connect my mobile wallet to a full node via a TOR hidden service address?
I would like to configure a mobile (Android) wallet to connect to a TOR-enabled full node (Bitcoin Core), via its onion address. I haven't decided which wallet to use yet. It will depend, of course, ...
- 111
0
votes
0
answers
19
views
Where can I buy bitcoin directly in to my wallet
I would like to buy Bitcoin directly into my muun wallet.
Possible options that I'm aware of
Buying directly from someone
Using a bitcoin atm Buying from
Coinmamma
What I tried
Bisq (Would not ...
- 101
0
votes
0
answers
67
views
Interpreting descriptors from bitcoinrpc for python
I've been running through the Bitcoin blockchain like this and comparing the descriptors to https://github.com/bitcoin/bitcoin/blob/master/doc/descriptors.md...
rpc_connection = AuthServiceProxy("...
- 275
0
votes
1
answer
24
views
bitcoinjs-lib is installed but cannot use its functions
I've installed the latest version of bitcoinjs-lib but I cannot use the functions of the library.
I get errors like:
const keyPair = bitcoin.ECPair.fromPrivateKey(Buffer.from(privateKey, 'hex'), { ...
-1
votes
1
answer
30
views
Unable to send bitcoin from trust wallet getting Code 400
I tried to send bitcoin from my trust wallet to my Coinbase account and I received an error -26: Txn-mempool-conflict Code 400 I am a beginner so can someone help me with this
1
vote
0
answers
27
views
How can I send a RGB token via Lightning Network?
RGB on lightning has happened recently. This documentation is said that payment channel can have HTLCs that contain RGB state transitions. That means payment for RGB assets can be delayed on LN when a ...
- 615
0
votes
0
answers
20
views
How can I recover funds recovery from coldcard?
I recently bought a Coldcard mk4 and did some tries to understand how it works. I moved a tiny amount to test it but now I can't recover it.
What I think happened is: I exported the wallet created ...
- 1
1
vote
0
answers
31
views
How is it possible to bypass bip125#2?
I was reading this github gist about rbf improvements written by glozow. I had difficulty understanding parts of it.
The main confusion I have is for this paragraph:
BIP125#2 can be bypassed by ...
- 793
0
votes
0
answers
42
views
Litecoin transactions not going through [closed]
Using LTC because it is relatively fast, but there is a first for everything:
24 hours ago I made a Litecoin payment, medium fee. However, up to now, 0 confirmations. On Blockchair I see "...
- 1
1
vote
0
answers
44
views
Create and spend P2WSH that locks coins with OP_CHECKLOCKTIMEVERIFY
I'm attempting to create a P2SWH address with a script that locks the coins for some time. And then I want to spend those coins from that address.
I've read a lot, some of the most relevant:
BIP173
...
- 11
1
vote
1
answer
22
views
Who determines a hard fork [duplicate]
I'm trying to really get a deep understanding of the roles miners and nodes play in enforcing the Bitcoin rules.
If a hard fork is presented, who determines if the fork is accepted, nodes or miners? I ...
- 19
0
votes
1
answer
20
views
Why would someone create a transaction where the fee is bigger than the sum of the outputs?
At the moment I am writing this question, the network is extremely bloated with, more than 60k transaction in the mempool. Inspecting the recent transactions, I found 4 very weird examples, at least ...
0
votes
1
answer
63
views
Total Decentralization
I am fairly new to Bitcoin and do not know the ins and out of using the Electrum wallet(i was recommended this wallet by bitcoin.org). I see on the internet that there are several methods by which I ...
0
votes
2
answers
32
views
Why distinguish between receiving address and change address
I see receiving address and change address in wallet client and bip44. Why distinguish between receiving address and change address?
What will be the problem if I use only change address chain for ...
- 11
0
votes
1
answer
18
views
Transaction fees for multiple outputs
I received a transaction from an exchange. It has 30 outputs, the fee was - according to blockchain.com - roughly 18k sats. Is this the fee per output or for the entire transaction? Is it cheaper - ...
0
votes
1
answer
26
views
My issue is same as many others sent BTC but funds were not received
even though the transaction shows as confirmed the receiver has not received the funds. I looked on Blockchair by entering the receivers wallet address and doing a history search and guess what it ...
0
votes
0
answers
9
views
Is this legit i remember signing up for it but is it a scam? [duplicate]
Look I signed up for this app a year ago and I got an email today that said my account has been inactive for a year and I have 24 hours to get my money or it goes back to the company. I Google the ...
3
votes
1
answer
31
views
Error creating a Taproot descriptor with a single key as script path
I need to implement 1 of 2 multisig with P2TR.
My friend's Bitcoin public key is 0374d5f29bc6c15066437856c512f7f9e5a14a1eb93cab2776d33b27b4103c62d8.
My own Bitcoin public key is ...
- 51
0
votes
1
answer
37
views
Failed to start Bitcoin daemon
I set up Tor with bitcoind. After that, when I started the daemon, I got the following error.
Error: Cannot set -bind or -whitebind together with -listen=0
My bitcoin.conf is:
server=1
txindex=1
...
- 25
1
vote
1
answer
23
views
What wallet size difference to expect between Bitcoin Core (binary) and Electrum (json) wallet files?
Imagine a relatively big wallet with tens of thousands of addresses and 3x transactions.
Now, let's say I restore such a wallet and do full re-scan in two applications - in Bitcoin Core and in ...
- 193
0
votes
2
answers
30
views
Deleting data in blockchain
I have read that block in blockchain is immutable since the next block is storing the hash of previous block .
What if , to remove a block from the blockchain , I set the "previous hash" of ...
- 1
0
votes
1
answer
26
views
Are fees smaller to transact to addresses generated from a zpub master public keys compared to xpub?
Will it affect the fees in any way when one sends money to an address generated from zpub master public key compared the xpub?
What might also be part of this question is, understanding whether it is ...
- 193
0
votes
1
answer
22
views
0
votes
1
answer
15
views
I deleted a transaction after:The Transaction is only available on your local machine
I waiting for confirmations from a transaction from another person. The issue it that it's only 3 sat/vb.
On my electrum wallet I got the following:
"The Transaction is only available on your ...
- 101
1
vote
1
answer
31
views
Bitcoin Mining Pools Centralization
I read a couple of articles and watched some YouTube videos, but couldn't find a super convincing argument for why centralized mining pools are not a huge issue. I get that from a Game Theory ...
- 87
0
votes
0
answers
36
views
Blockchain.com holding all my funds [closed]
On Feb 23 2023 I recived an email from blockchain.com telling me my verification was unsuccessful and would be contacted in a few weeks. I have been a verified user for almost 10 years. I have been in ...
- 1
0
votes
1
answer
37
views
Early version of bitcoin and poker
How can we locate the code for an online poker game in version 0.1.0 of Bitcoin, which multiple articles on the internet claim was included by Satoshi Nakamoto? Furthermore, how can we verify that ...
- 2,550
1
vote
1
answer
33
views
Is there a formula to know how much to bump your change input to get a desired sat/vbyte for P2TR transactions?
so i know x = (sat/vB_effective * (vB_parent + vB_child) - current_parent_fee) / vB_child where x is the child fee (in sats/vbyte) that would need to get bumped. so this is figured off the child fee. ...
- 13
3
votes
1
answer
107
views
Does Bitcoin Core version v22.0.0 support SLIP-0132?
Launched my own Bitcoin Core with regtest.
Installed Specter and made it connect to that node.
In Specter, I created a new bitcoin wallet, basing it on the bitcoin core hot wallet.
In Specter, I ...
- 193
1
vote
1
answer
33
views
Reading blk.dat files using pybtc does not yield transactions
I am trying to parse the blk.dat files using pybtc but I can't seem to get this right.
f = open(block_filename, "rb")
lines = f.readlines()
for block in tqdm(lines):
...
1
vote
1
answer
29
views
How can one query the mempool of an Electrum server?
How does one go about querying a public Electrum server’s mempool? Not just for a address, but the entire mempool.
- 113
0
votes
1
answer
23
views
How to implement stake.com model of deposit & withdraw flow for my crypto poker casino?
In stake.com for each user they generate separate bech32 address for deposit & displays the deposited amount as balance in top of the navigation bar.
Similarly for withdraw they just ask for the ...
0
votes
0
answers
19
views
bitcoin core generate xpub (not hardened) from pubkey
I am a vendor in a marketplace that accepts bitcoin.
In bitcoin core that I run, I retrieved pubkey of my wallet by running getaddressinfo. Now, I need to generate an xpub key and pass it on to the ...
- 193
2
votes
1
answer
59
views
Is it safe to reveal the private key that generates the R nonce in schnorr sigs?
I'm curious about stuffing data in the auxiliary parameter of generating the schnorr nonce.
Something like "Alice agrees to pay 1 BTC to Bob within 5 days of Monday March 20th".
I want to ...
- 331
0
votes
0
answers
71
views
How do i trade my bitcoin with high chances of profit [closed]
I have been wanting to invest my funds in a very long time but i always have it difficult to do because i am always scared of losing my funds to bitcoin and now that i realize the speedy increment of ...
0
votes
0
answers
29
views
implementing the neutrino client [closed]
I am starting a project to implement the neutrino client and the neutrino node has already implemented the bip 157 and bip 158 , and now I want to know how I should start implementing it means what ...
- 1
0
votes
0
answers
32
views
Bitcoin: Mine faster than timestamp and nonce value [duplicate]
So Bitcoin uses a 32 bit value nonce in the bitcoin header. This means that it takes about 4 billion hashes to run out of nonce values. There is also a timestamp in the Bitcoin header which is Unix ...
- 101
1
vote
2
answers
47
views
Sum of block values not zero?
Take for e.g. block 163440. The amount paid out in the coinbase transaction is not reward+fees. Does the network not require blocks to have a sum of zero for all transactions + block reward? ...
- 123
1
vote
1
answer
42
views
Consequences of turning on pruning setting in Bitcoin core after initial block download
I have been running full node without specifying the pruning settings in bitcoin.conf.
I was wondering if I need to re-download the entire blockchain if I restart my node after turning on pruning ...
- 13