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Why bitcoin has so many different address formats?

We know bitcoin has at least 4 completely different address formats. They are legacy format, bch32 script, segwit. I know each address format means different transaction types, for example pay to ...
Wenkai Tian's user avatar
0 votes
2 answers
16 views

Is the Regtest genesis hash always the same or not?

I would like to know if we have two nodes that are each running the regtest network will the genesis block digest be the same for the nodes or not? I ask because I notice in chainparams.cpp that ...
user49396's user avatar
  • 233
3 votes
1 answer
137 views

Why is my P2P_V2 peer connected over a v1 connection?

Bitcoin Core 27.0 which enables v2 transport (BIP324) by default was released a few days ago. I'm already seeing a few peers with the /Satoshi:27.0.0/ user agent and all of them have the P2P_V2 ...
Vojtěch Strnad's user avatar
2 votes
1 answer
46 views

What does unbroadcastcount in getmempoolinfo mean?

What is the unbroadcastcount in getmempoolinfo? Does it track only the transactions from my wallet that are unbroadcasted? Or does it track all transactions that are not broadcasted which I may have ...
sanket1729's user avatar
  • 1,402
0 votes
0 answers
28 views

Unexpected additional output in transaction [duplicate]

https://explorer.btc.com/btc/transaction/c5069dd52612dd07cfff6a2c587356497a2f8e7489923376a92420850fe27d09 I only did an 0.01 transfer to freebitco.in but somehow it puts an additional 0.027 BTC ...
asdfg's user avatar
  • 1
0 votes
0 answers
13 views

Curious about stuck BTC transaction [duplicate]

My transaction was sent before the halving, at only 22 sat /vbyte (per coinbase commerce's recommendation) and has been stuck for 7 days. I'm not in a hurry, but I also want to make sure my funds are ...
James's user avatar
  • 1
0 votes
1 answer
42 views

Can I create multiple OP_RETURN UTxO in single transaction

Is it possible to generate multiple OP_RETURN utxos in one transaction? I see there is an answer for that in 2015, I wonder if it's still the case. I know nothing prevents us from doing so, but ...
Saburo Ronin's user avatar
0 votes
0 answers
18 views

importing data to a wallet as not watch-only

I am trying to use private keys, addresses, and public addresses I generated myself. (for educational purpose). I am working with bitcoin-cli by inserting the inputs I've generated myself. (in CMD) ...
 solaxab's user avatar
1 vote
0 answers
17 views

Loaded 0 blocks during reindex

My node is busy with a -reindex. In the debug.log file I see lines like the following: Reindexing block file blk02620.dat... Loaded 438 blocks from external file in 7133ms This seems normal, however, ...
ChrisdV's user avatar
  • 11
1 vote
0 answers
28 views

How can I sign custom tapscript leaf using bitcoind `walletprocesspsbt` rpc endpoint?

I have taproot output which can be spend through 3 different script paths. In general all of those script paths are some kind of multisig. In my wallet I have key which is part of those multi-sigs. ...
Konrad Staniec's user avatar
0 votes
0 answers
17 views

need help finding my private key? [duplicate]

I have a question I received some BTC on bitcoin core but the synchronization is not finished I tried to find the private key but it doesn't work I need help thank you very much??
Alexandre tremblay's user avatar
0 votes
0 answers
26 views

My son passed away and I believe he had a bitcoin account. I would like to see about closing the account in favor of his minor child

My son passed away and I believe he had invested in bitcoin. I would like to see about closing his account in favor of his minor child. I have no idea how to do this. We have a death certificate
Bob Lee's user avatar
0 votes
1 answer
28 views

If I lose my Bitkey hardware wallet, and they stop making them, what happens?

If I get a Bitkey wallet and I lose it, I can simply get another wallet and get my crypto back. But what happens in 10 years time if Block go out of business, and they stop making the wallet? Can I ...
tidylamp's user avatar
0 votes
0 answers
30 views

How should I order the block header data in messages with the pool?

First i am creating this post to benefit all of you who are really into understanding and building your own miner from the scratch. There is so many materials but rarely have anything in common. I ...
menelique777's user avatar
-3 votes
0 answers
14 views

How do miners manually add transaction to a block template? Here's my idea from the Quick [duplicate]

How do miners manually add transaction to a block template?
Nino Jaidaa's user avatar
1 vote
0 answers
31 views

Miniscript exercise for 3of4 multisig that turns into a 2of4 where 2 specific keys only can spend

I was trying to write this script (miniscript) or(multi(3,pk(key_1),pk(key_2),pk(key_3),pk(key_4)),and(older(12960),multi(2,pk(key_3),pk(key_4)))) where it's a 3of4 multisig which turns into a 2of4 (...
Ziya_Sadr's user avatar
-1 votes
0 answers
13 views

Confirmation duration [duplicate]

Dears I requested a BTC withdrawal on 19th April but I haven't yet received it in my BTC adress. What should I do? We I track the transaction . It says transaction unconfirmed
Behzad's user avatar
  • 1
0 votes
1 answer
39 views

Why doesn't bitcoin use bech32 encoding for transaction_id and block hash?

If I understand correctly, transaction IDs and block digests are typically hex-encoded in the bitcoin ecosystem including bitcoin-core RPC calls, block explorers, etc. Meanwhile, bech32 encoding would ...
user49396's user avatar
  • 233
0 votes
0 answers
50 views

What is the correct way to calculate testnet BTC fees?

Recently, the fees on Testnet seem to be going wild. I tried to send 20,000 satoshi and it cost me 27,000 satoshi. I used a feerate based on blockstream.info's fee estimate and calculated the fee ...
ron s's user avatar
  • 13
0 votes
1 answer
131 views

How do miners manually add transaction to a block template?

Here's my idea from the quick research: Miners use getblocktemplate RPC method. In the obtained block template, they remove some transaction and instead place in other transaction that wouldn't ...
pycan's user avatar
  • 111
-1 votes
0 answers
34 views

Have been locked [closed]

The scammer collected the money, but it appears to have been locked. It was a normal address. I would like you to check it once. Please introduce me somewhere.
user150349's user avatar
0 votes
0 answers
25 views

Got non-mandatory-script-verify-flag (Invalid Schnorr signature) error message when spend a taproot transation

I'm trying to spend an Taproot address via a key spend path with musig2 lib in Rust. This address is aggregated with 2 owners. But I still got this message when I broadcast the hex transaction to ...
Trí Lương's user avatar
0 votes
1 answer
26 views

Would it be possible to sync a new node without it being connected to even one unpruned node?

There are some Proof-Of-Work chains where pruning is default on their nodes, i.e. the network does not rely on full unpruned nodes at all: Due to the pruning mechanism, Kaspa nodes only needs ~3 days ...
John Smith's user avatar
1 vote
2 answers
64 views

How does a HD wallet work in practice?

EDIT - I have refined the question in the post to be more succinct. If I derive multiple child/grandchild key pairs from the original master public key, I understand each of these is its own specific ...
Latent365's user avatar
0 votes
0 answers
9 views

Transaction is unconfirmed [duplicate]

This transaction is unconfirmed, is there any thing I can do to make it faster? Is the BTC recoverable if it never gets confirmed? f7d89f931080642a718575e0d103e8bc755dde6bae362c3d6e1c674b0d396284
Jakes's user avatar
  • 1
1 vote
2 answers
52 views

Other than for obvious spam, what is OP_RETURN used for in non-coinbase transactions?

Some time a go I heard from Bitcoin Mechanic that there was a coin join implementation that inscribes some data that they need in order to determine their pricing. Is that true? Do custodians such as ...
John Smith's user avatar
-1 votes
0 answers
28 views

Which mobile wallet supports Lightning + Inscriptions + Runes? (optionally Desktop / browser version too) [closed]

I'll be taking part in a Halving Party: https://twitter.com/LDNBHP/status/1781331679115670007 They advertise that 🍺 is half price when paid in BTC = clearly need a mobile lightning wallet While doing ...
Mars Robertson's user avatar
0 votes
0 answers
18 views

How do I get started with blockchain [closed]

Well I've been learning more and more about blockchain and it's implementations and all the other things I'm finding it quiet exciting I want to learn to code the blockchain ,How do I get started with ...
Aryan's user avatar
  • 1
0 votes
1 answer
21 views

How to estimate how long a transaction will take? [duplicate]

I have this transaction that's been pending for 2 days. mempool says estimate in several hours or more. For context, I am using blue wallet on ios and electrum on android. I imported the electrum ...
user avatar
1 vote
1 answer
92 views

Why do some transactions wildly overpay fees?

It's very common to see transactions that pay extremely high fee rates, easily 10, 100, or more times the any reasonable high-priority fee rate. Who makes these transactions, and why do they overbid ...
Casey Rodarmor's user avatar
0 votes
0 answers
13 views

Is it possible to run RPC commands without installing the entire Bitcoind

I am interested to run bitcoin mining https://github.com/jgarzik/pyminer/blob/master/pyminer.py , I understand that it inherently calls bitcoind to run some RPC commands to broadcast once a nonce is ...
Jacksparaaw's user avatar
1 vote
0 answers
22 views

Can mediantime be used as a proxy for expected time of the most recently mined block?

I'm using Bitcoin Core CLI to get block info: .\bitcoin-cli.exe getblockchaininfo Among other things, this returns two items: "time": 1713464903, "mediantime": 1713461780, I ...
Hannah Vernon's user avatar
  • 1,562
-2 votes
0 answers
17 views

Once I create a raw coinbase tx, how do I add it to the block template?

Once creating a raw coinbase tx, am I supposed to call "getblocktemplate" and add my tx to it then submit the block?
pnut butter's user avatar
0 votes
1 answer
20 views

Piona.us did they Merge w/Bitcoin

Has their been a merger with piona.us? They want you to use them to make them your Bitcoin wallet and want a fee, plus what they want in their terms. What happens to the blockchain that I made. When I ...
Rickell's user avatar
0 votes
0 answers
26 views

There is something wrong with my wallet

I currently have 1,557,166BTC=27.841,23 dollars. And I have a transfer right now at Blockchain. And this is like the sixth time, in the last two months, that I've had a transfer, and was unable to ...
Ziayah Rain's user avatar
0 votes
0 answers
66 views

Error occurred while creating ord wallet: RPC cookie file not found [closed]

"The error 'cookie file C:\Users\gagaa.LAPTOP-IOM2S2PK\AppData\Roaming\Bitcoin.cookie does not exist' occurs when executing the 'ord wallet create' command in the command prompt, indicating that ...
gao's user avatar
  • 1
0 votes
0 answers
26 views

Very slow sync using bitcoin core on Mac mini m1

I'm using an M1 Mac Mini, 8GB memory, 256 GB internal SSD, 2TB Toshiba SSD (which is where the blocks are being stored). Google fiber internet. I've been syncing now for 2 weeks, I'm at 60%. This ...
neils4fun's user avatar
2 votes
1 answer
81 views

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
0 answers
25 views

Is this a function, or what is it? [closed]

Is this a function 1? Github describes it as a 'method', but I don't know what that is.
Eoin's user avatar
  • 335
2 votes
1 answer
85 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
  • 590
0 votes
1 answer
55 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
28 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
-1 votes
0 answers
14 views

network fee to make a transaction on the ethereum network [closed]

I have USDT on my coinbase wallet transferred by a trader from a company called tide invest. However, when I want to send my usdt to coinbase, I get the following message : You need to add ETH to pay ...
Moreau's user avatar
  • 1
-1 votes
0 answers
29 views

Why a brc-20 transaction has max 24 outputs? [closed]

Why a brc-20 transaction has max 24 outputs? Not 23 or 25? It is because of the size or something?
talata ta's user avatar
0 votes
0 answers
15 views

Será ilegal negociar bitcoins por meio de jogos da Web3 no futuro? [closed]

Sempre que o jogo está envolvido, a lavagem de dinheiro, a evasão fiscal e outros delitos são inevitáveis. Todas as empresas que desenvolvem jogos da Web3 serão mais bem regulamentadas? Ou elas estão ...
Faustina Mccandles's user avatar
0 votes
1 answer
22 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
34 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
37 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
43 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
24 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

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