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How can I validate if my miner works?

I recently challenged myself to build a BTC Miner that operates on solo.ckpool.org, yeah i know chances are close to zero to find a nonce (especially that not only nonce is in the process) but i ...
menelique777's user avatar
2 votes
1 answer
101 views

Exact witness requirements for a segwit transaction with P2PKH and P2WPKH inputs

Segwit transactions can mix segwit and non-segwit inputs: Segwit transaction from mixed addresses (segwit and non-segwit) Can I build a raw segwit transaction with no segwit inputs? But how exactly ...
Lee's user avatar
  • 877
0 votes
1 answer
77 views

Why can I not find my transaction in the mempool?

I built a native segwit raw v2 transaction with the pwpkh addresses, and get the decoded transaction as the follows { "version": "02000000", "marker": "00", ...
Jack Tsia's user avatar
1 vote
0 answers
29 views

ScriptSigSize fdf501 [duplicate]

I am trying to understand what scriptsigsize is. If I look at this transaction, the scriptsigsize of the first input would be "fdf501"? If I convert it to decimal, it cannot be the ...
Jim Quick's user avatar
0 votes
1 answer
29 views

Maximum Number of Hops an Onion Message Can Travel?

According to the specifications: https://github.com/lightning/bolts/blob/master/04-onion-routing.md#onion-messages What's the maximum number of hops an onion message can travel?
Amin Bashiri's user avatar
0 votes
0 answers
39 views

Accessing my bitcoin

When I first invested $10;into Bitcoin it hadn't taken off yet,I forgot about it and then recently started receiving emails saying I needed to do something with my Bitcoin money but I have no idea ...
John Paul's user avatar
0 votes
0 answers
40 views

What do I do if I bought Bitcoin in 2009 or 2008 [duplicate]

I want to find the Bitcoin I purchased in the past by paying 100,000 won. I remember back then that I made the purchase by bank transfer or phone small payment. Is this the right way to purchase it? I ...
호림아빠's user avatar
0 votes
0 answers
45 views

How to get the balance before downloading whole blockchain in bitcoin-core

i didn't work with bitcoin-core before and after i run the app i generate an address and send some bitcoin to it, now the bitcoin-core says i should download the whole blockchain before giving you ...
user150958's user avatar
1 vote
0 answers
26 views

Clarification about the decision to only allow outgoing connections flooding in erlay

I was reading the BIP-330 and saw that only the outgoing connections are low-fanout flooded. A major idea is that we want that much of the nodes get the transaction in the first cycle itself, but ...
Prabhat Verma's user avatar
1 vote
0 answers
24 views

Fixing 'Connection Reset by Peer' Error When Calling bitcoind REST API in a Container

Problem: Unable to Access bitcoind REST API from Host Machine Description: I have bitcoind installed in a container, and I can successfully make REST API calls from within the container. However, when ...
Antonio's user avatar
  • 11
1 vote
0 answers
101 views

Stuck on "Replaying Blocks" 100% after a forced close

I have had issues downloading Bitcoin Core, where the download would get stuck/frozen and not progress for hours. The last time this happened I closed the Bitcoin Core window and was met with a "...
SoRuud's user avatar
  • 11
3 votes
0 answers
24 views

How to broadcast transactions in bitcoin regtest mode?

I build three nodes named A,B,C based on bitcoin-regtest image of docker. And these three nodes are in the same network which means they can communicate with each other. In node A, I use bitcoin-cli -...
Lawrence Yang's user avatar
6 votes
1 answer
78 views

How can I verify that a PSBT is solvable by a specific descriptor?

As the title suggests I would like to check whether a specific PSBT is associated with a specific descriptor, either manually or using bitcoin-cli or bdk-cli. I'm more concerned about static ...
max's user avatar
  • 255
0 votes
0 answers
37 views

Why does my PSBT's input script not have a pub key?

I have created a PSBT to sign an HTLC using a funded P2WSH, that I wish to sign with my xverse wallet. This is my decoded PSBT which I have created using bitcoin-cli o@OscarPC:~/bitcoin-htlc$ bitcoin-...
Oscar Chambers's user avatar
2 votes
0 answers
38 views

libxcb-xinerama0 Library required by bitcoin-qt

I installed bitcoin core 26.1 on a Raspberry 5 (ARM Architecture) running Ubuntu 23.1. Upon running bitcoin-qt, I got the error that the library libxcb-xinerama0 is required but not installed. It's ...
Neo's user avatar
  • 53
0 votes
0 answers
23 views

Non-transfer to my coinbase wallet due to low priority [duplicate]

I'm just beginning my journey into crypto currencies and its ecosystem. Right now, I received the message below from Coinbase ([email protected]) informing me of a non-transfer to my coinbase ...
Moreau's user avatar
  • 1
1 vote
1 answer
111 views

What's the raw logic for converting a seed phrase to private key

I'm interested in how an actual seed phrase is converted into a private key. I think it's a long the lines of. Generate 11 word seed phrase Convert the numbers into binary Add up the binary numbers ...
Ritzy Dev's user avatar
  • 111
0 votes
0 answers
26 views

Why is there a separate bitcoin and bitcoin-core GitHub repo? [duplicate]

Can someone explain why these two repositories exist at the same time? https://github.com/bitcoin https://github.com/bitcoin-core It is a bit confusing for a newcomer to the codebase what to actually ...
Neo's user avatar
  • 53
0 votes
0 answers
26 views

Should this be legal to charge a person a hashrate that is meant for 8 decimal point system then take and apply it to a 14 decimal system in bitcoin

I've been minning with Bitcoin crypto cloud mining company for a couple of months now.So everyday I go in and check on everything just to make sure the miners are still going, I'm mining at a hashrate ...
ArmourBtcMiner2024's user avatar
1 vote
2 answers
79 views

How to avoid "Unconfirmed UTXOs are available, but spending them creates a chain of transactions that will be rejected by the mempool"?

I'm encountering an issue with Bitcoind where I frequently get the error: "Unconfirmed UTXOs are available, but spending them creates a chain of transactions that will be rejected by the mempool.&...
Mikhail Yevchenko's user avatar
0 votes
1 answer
46 views

Is it possible to reduce the field size without disrupting generation of public keys?

I have a curious question, i am aware of the curve parameters of secp256k1. i was wondering if its possible to reduce to field to a 130 bit or lower without disrupting the actual functionality.. what ...
Melwyn's user avatar
  • 9
3 votes
1 answer
143 views

Is there still a digital signature loophole in Bitcoin transactions?

I want to ask a question: Does the problem of repeating the value r still persist today in Bitcoin transactions? If so, how can I find transactions that contain this thing? I have research on how to ...
hisham yem's user avatar
0 votes
1 answer
49 views

Does new transaction in RBF has a txid different from the stuck transaction ? If yes , then isn't it basically creating a new transaction?

If I am sending a new RBF transaction to replace my stuck transaction and since the txid preimage has outputs value it will change the txid then why do we even care about RBF and nsequence < ...
Prabhat Verma's user avatar
0 votes
1 answer
53 views

When should Bitcoin Core functional tests be run?

When should functional tests be run? Or is it always a good time to run functional tests?
Eoin's user avatar
  • 349
0 votes
0 answers
26 views

How to sign P2WSH PSBT with sats-connect?

I have created a funded P2WSH script, which is an HTLC. I now want to create a PSBT which will be signed by another wallet to withdraw the funds. The problem is that the PSBT signing is throwing the ...
Oscar Chambers's user avatar
1 vote
1 answer
38 views

Having Address format, infer derivation path or BIP used

Hello fellow Bitcoiners. While studing bitcoin, I came across an issue, I wanted to ask if someone knows how to know which derivation path a 1xxxxxxxxxxx address was created with. I know that ...
juancho's user avatar
  • 13
0 votes
1 answer
50 views

Testing new releases privately on selected nodes?

I think the main vulnerability of Bitcoin is a new release messing things up in a way that it will completely destroy people's faith in the protocol. By this I mean something like what happened in ...
mathboi's user avatar
  • 191
-1 votes
1 answer
50 views

How does one verify signature in a P2WPKH transaction?

(Assume there's no OP_CODESEPERATOR) For standard P2PKH, the signature digest is generated this way: NewTransaction settle the TxOuts well set all TxIn scripts to empty insert the Previous Locking ...
Archit Dabral's user avatar
0 votes
1 answer
323 views

Which bitcoin mining pools can be used with a Bitaxe miner?

I recently acquired a Bitaxe bitcoin miner. Which mining pools can I configure it to be used with? It's default pool was configured to mine to https://web.public-pool.io, but when I search on that ...
Otilla Higgs's user avatar
1 vote
1 answer
56 views

How can I check the balance of a 10 year old wallet that can't sync?

I have a very old PC that blue screens every time I try to sync bitcoin core and I was wondering if there was any way I could check the balance of the wallet before I destroy the PC? It has 10~ ...
Anon's user avatar
  • 13
0 votes
0 answers
89 views

Why doesn't my bitcoin testnet address work on testnet faucets?

I have created a bitcoin testnet address but it shows invalid address. I have created it using this way passphrase = b'blah' secret = little_endian_to_int(hash256(passphrase)) print(PrivateKey(secret)....
kenadams15's user avatar
1 vote
1 answer
40 views

Why my lightning node does RBF onchain of a tx that does not exists? (after a forced close channel with an expired HTLC)

I am using lightning core and I had a force close channel with an active HTLC, funds were sent from this address bc1qca5lwlfv8qzkchcfqdryfl89szuk2n0c3x2p7vt4gst04keygkns4x68hh to myself (...
Traca's user avatar
  • 11
0 votes
1 answer
101 views

How to convert signature to DER encoded format in python

vk = ecdsa.VerifyingKey.from_string(bytes.fromhex(pubKey),curve=ecdsa.SECP256k1) if vk.verify(bytes.fromhex(signature), bytes.fromhex(sha256_hash), hashlib.sha256, sigdecode=sigdecode_der) == True: # ...
aaravm's user avatar
  • 1
0 votes
1 answer
26 views

What does this functional test include?

Does the test test/functional/test_runner.py include all possible functional tests, or is it just a dummy initial test run?
Eoin's user avatar
  • 349
0 votes
1 answer
54 views

how to create txid from transaction.json

Consider this is the transaction.json file: { "version": 1, "locktime": 0, "vin": [ { "txid": "...
Yuvraj Chhetri's user avatar
0 votes
0 answers
33 views

what is expectedFees and expectedWeight in a block and why its changing frequently?

what is expectedFees and expectedWeight in a block and why its changing frequently ? https://mempool.space/api/v1/block/00000000000000000001c680ee86b8eaa43c94ac9012f4d2dcbfa9f45beadf06 when i last ...
N.dhanush raj's user avatar
2 votes
1 answer
59 views

Where does the term "derivation path" originate

BIP-32 never mentions the term "derivation path" but a quick search (https://bitcoinsearch.xyz/?search=derivation+path) returns a bunch of results so one must assume "derivation path&...
Tobin's user avatar
  • 123
0 votes
0 answers
58 views

Extremely slow blockchain syncing issue on RaspBerry Pi 4 with Raspiblitz

I'm encountering a significant delay in synchronizing the blockchain on my Raspberry Pi 4. Even after 11 days, the sync progress is only at 68%. I'm using a brand new Raspberry Pi 4 with a 1TB USB 3.0 ...
bvh9000's user avatar
0 votes
0 answers
69 views

Old encrypted wallet + bitcoin core

I got desperate, I tried all the instructions I could find on the Internet - nothing helps. What I have: wallet.dat from bitcoin-core encrypted from 2015 (in four different places) the password I ...
LamoSS's user avatar
  • 1
1 vote
0 answers
58 views

I send sats to the Bitcoin Core wallet I created some time ago without knowing what I was doing and now facing issues with withdrawal I am clueless

Some time ago, I set up a Bitcoin core wallet and sent funds to that wallet a few times thinking they'll be safely stored. Well, they are, and probably too safely. I have a hard time getting funds out....
Najn11's user avatar
  • 11
5 votes
1 answer
462 views

Can an unconfirmed transaction be confirmed several years later?

Suppose that I make a transaction, but due to a low fee it is not confirmed even after several weeks. The transaction is then removed from the mempool of most nodes (and also my wallet disregards the ...
n00p's user avatar
  • 151
-2 votes
1 answer
38 views

I'm trying to determine if https://web.optiontradingso.xyz/h5/#/ is legit or not. Does anyone know? [duplicate]

Does anyone know if https://web.optiontradingso.xyz/h5/ is legit or is it a scam?
Mds51's user avatar
  • 1
1 vote
0 answers
44 views

Offline Paper Wallet Creation

I was wanting create an offline Paper Wallet, ideally, without using a computer for nothing more that verification. So, that's how I came across Entropy. What is the risk of attempting to create a ...
Scott 123's user avatar
1 vote
1 answer
158 views

How is tapscript different than P2PKH using opcodes from a developer perspective?

I'm going to use ordinals as an example because they illustrate my question the most effectively. My understanding is that ordinals are created by writing opcodes into the transaction just like you ...
ChristianOConnor's user avatar
0 votes
0 answers
12 views

Can I send Bitcoin to my bank [duplicate]

Can I send my Bitcoin to my bank account I'm having trouble with idme verification
Rose Garcia's user avatar
1 vote
0 answers
34 views

Schedule programmatically ASIC mining

i'm looking to get into ASIC mining buying something around 1kW of power. I have photovoltaic panels at home and during the day I have excessive power I can use to mine. I'm not set on a specific ...
danipisca07's user avatar
0 votes
1 answer
87 views

How can taproot transactions manage to store so much data?

I don't quite understand how ordinals are able to store so much data on chain. I know about the ordinals envelope. OP_FALSE OP_IF OP_PUSH "ord" OP_PUSH 1 OP_PUSH "text/plain;...
ChristianOConnor's user avatar
1 vote
0 answers
122 views

Bitcoin core having trouble connecting to peers

New to Bitcoin. I have been trying to host a full node on my Mac. I just installed bitcoin core but while syncing, it seems my node is unable to connect to any peers. I am regularly checking the debug....
Advait Pote's user avatar
0 votes
0 answers
75 views

Wasabi coinjoin and the "Chainalysis demixing"

Learning more about how coinjoin works I came across the tale of how Chainalysis "demixed" a 50 BTC transaction that went through Wasabi (TXID ...
user2334659's user avatar
-1 votes
1 answer
43 views

Questions about sidechain

Can coins from sidechains to be moved to mainnet and to be converted to bitcoin?Can you give me practical example of such transaction?
juhasa's user avatar
  • 1

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