All Questions

I am studying the MuSig protocol and am having trouble grasping certain segments. This is my understanding thus far: In current Bitcoin CHECKMULTISIG format, the size of the signature grows linearly ...

There are papers about multi hop virtual payment channels emerging like the Perun paper or more recently the Donner Paper. The idea seems to be to reserve some liquidity on a path (or potentially flow)...

BitGo wallets are based on a 2-of-3 multi-signature, the end user have access to: - Public key (xpub) of the 3rd signer (as the main wallet xpub) - Native Segwit (Bech32), bc1... addresses to receive ...

ok so, in my effort to create a fullnode from scratch both for learning purpose and need (not a topic for discussion, thanks), I was looking at the code that check Merkle Root to not be vulnerable to ...

I am trying to figure out how many Bitcoin transactions could be verified per second. Am I correct that signature verification is more expensive than computing Merkletrees and hashes and therefore ...

The way Lightning Network works now, watchtowers maintain a list of penalty transactions to broadcast in case one party attempts to close a channel with an outdated channel state. The watchtower ...

Some coinbase transactions have locktime values set. One such recent example is: { "txid": "5166cb509a5d786db33963a269ea08ff82a1c40d37d4fb828a394b0465cd5efd", "hash": ...

The "Script" system used by Bitcoin transactions is commonly described as a Forth-like, stack-based language. What prior work influenced the design and layout of the Script instruction set? ...

The Background Bitcoin tracks chain work by counting the (expected) minimum number of hashes it would take to create a chain of the same number of blocks and same difficulty steps[1]. Naturally, ...

I'm attempting to do some research surrounding orphaned blocks within the Bitcoin network. From my understanding the best and really only way to obtain data for blocks that no longer exist in the main ...

Is there any help/tutorial on how to build the Merkle root from stratum data? The Slushpool's stratum protocol has an example of a mining job but it does not contain any Merkle branches and I don't ...

I am writing a C++ application to scour large files (typically disk images) for wallet.dat files, with the intention of recovering the private keys. At the moment I am struggling the data contained ...

I want to call chainActive.Tip()->nHeight in core.cpp. It is not possible, I am interested in every idea. https://github.com/LIMXTEC/BitSend/blob/DEV-joshafest/src/core.cpp Here is an example : ...

I am currently trying to set up an application using the BTCJam api. I think the api could be very useful, but I have been unable to get it to work fully, and since support isn't responding, I thought ...

I am using BitcoinJ for my java application which fetches the test network's genesis block. I referred to the basics mentioned at JavaWorld and BitcoinJ's Google Code wiki. I am able to get it ...

What is the best operating system configuration for a computer to run (bitcoind or bitcoin-Qt) and (BFGminer or CGMiner) under Linux, assuming that it will be connected to a 3 Terrahash mining rig on ...

I know this question has been asked a lot. However I am not able to grasp the correct approach to address this. Let me give you the context: I spun up an LND node to start experimenting and ...

I noticed a discrepancy in what various sources state the abbreviation HTLC is short for. It is... "Hashed Timelock Contract" according to the Lightning Network Paper "Hashed Time ...

I'm pretty familiar with the opcode style of writing down scripts. I can understand the stack-based language nature of bitcoin script where you can write down different script spend paths via ifs like ...

Satoshi added the 1MB block size limit in this commit on 15 July 2010 https://github.com/bitcoin/bitcoin/commit/a30b56ebe76ffff9f9cc8a6667186179413c6349 https://sourceforge.net/p/bitcoin/code/103 ...

When I was reading bitcoin-paper-errata-and-details.md written by David A. Harding, I realized that there's probably a common misunderstanding or over-simplification about Merkle tree pruning. What ...

Recently it's reported that Bitcoin Core will disable BIP70 support by default in the next major release (0.19.0): https://cointelegraph.com/news/sorry-bitpay-new-bitcoin-upgrade-proposal-disables-...

Are there any bitcoin clients without the Isstandard () function which would allow non standard transactions to be broadcast?

I recently experienced a I/O error resulting in data block corruption or index corruption cause bitcoin-qt wasn't quitting so I forced bitcoin core to shutdown without killin it properly. I checked ...

I am using Bitcoin core 0.14.1 testnet. I created a Segwit address. transfer some coins to this address. Now I want to spend it. I created a raw transaction using console command i.e. ...

I am trying to build Bitcoin 0.13 for Windows. I've always used this guide for building previous versions. Now seems that developers have changed their mind regarding Windows, and the new way seems ...

I am now in the venture of finding and setting up a bitcoin pool company. However, after some research, I found out that there are plenty of bitcoin pool software. There are: CoiniumServ Cryptonote ...

I have been attempting to build my own raw transaction generator in Java which I can then broadcast on the testnet network. The problem is when I attempt to broadcast the transaction it says there is ...

Has anyone else gotten an electrumx server up and running lately? I have just gotten to the point where I'm not seeing any errors during "# service electrumx status", but I'm also not seeing my ...

I have used this code. It returns a success, but does not send bitcoin. var txRepo = new NoSqlTransactionRepository(); // Let’s me introduce you, Alice, Bob, Satoshi, and Nico with their ...

I want to know, what's the maximum amount of addresses that Bitcoin Core 0.13 can manage? All addresses should belong to the default account. I want to use the walletnotify feature How does the ...

How does the multiparty schnorr signature work and enable multisig functionality in Bitcoin? What are its limitations? Can we construct any m of n signature? Is there anyway to hide the signers among ...

I know that maybe it's a bit early to start asking Wallets to implement Lightning Network connections even if the majority don't support SegregatedWitness yet. But how about Payment Channels? In ...

When run in daemon mode, bitcoind accepts a parameter -walletnotify=<cmd> which runs <cmd> whenever a wallet transaction changes due to sending/receiving. Is there a similar feature in ...

I'm using bitcoinj from a Scala application... and when I start it, I always get the following errors: [error] o.b.c.Context - Performing thread fixup: you are accessing bitcoinj via a thread that ...

Is there any possibility to explore transaction chain via Original Bitcoin API (https://en.bitcoin.it/wiki/Original_Bitcoin_client/API_Calls_list) as the blockexplorer does it. If not, why?

Anyone here using cryptocompare api? Where would be the best place to ask questions about it? I am just starting with it and for example I have stumbled upon few issues. Like, coin tickers with an ...

Is there a forum post or website where all the altcoin networks.py settings are being shared? I can see the P2pool forks on Github where people commit their own networks.py settings back to their own ...

When attempting to create a p2tr address using the private key 0x0000...01 I get, bc1pmfr3p9j00pfxjh0zmgp99y8zftmd3s5pmedqhyptwy6lm87hf5sspknck9 which does not match the provided test vectors provided ...

I am having trouble finding examples showing a known WIF to a valid mainnet P2TR address. I am working on a tool and want to see if my P2TR conversions/encodings are outputting the correct P2TR ...

"What are some key security practices for running a company that works on Lightning? Risk of someone running away with the funds Alternatives to multi-sig for lightning Resources in the space ...

If I am passing a PSBT (Partially Signed Bitcoin Transaction) between multiple people, and I pass on my signature for my UTXOs for given inputs, can someone take advantage of malleability and cheat me ...

I'm trying to open a channel on regtest with LND v0.13.0-beta.rc3 using their PSBT workflow to allow for remote signing. I've done the following steps: I create a regtest wallet using the BIP39 ...

I am learning about lighting now and I'm trying to check my understanding on-chain w/ a block explorer. I have opened several channels already and closed some also. I would like to confirm my ...

Hello everyone. This isn't specifically a bitcoin thread but due to recent events I think it is important that people get an understanding of the real Elon Musk as I have no doubt he will try and ...

There are multiple entities and open-source software that crawl the Bitcoin P2P network to discover and monitor nodes for various purposes (statistics, surveys, academic papers etc.) Some of those I ...

Do chain analysis techniques consider the fee portion of block rewards as tainted funds? e.g. if known stolen funds are moved in a certain block, the fees the sender pays end up "polluting" ...

I want to create a Python implementation of an lnurl-auth server. I started a quick HTTP server to be the callback url, and captured the signed callback sent by BLW on Android. ?tag=login &k1=...

The source code is as follows： //! -dbcache default (MiB) static const int64_t nDefaultDbCache = 450; //! -dbbatchsize default (bytes) static const int64_t nDefaultDbBatchSize = 16 << 20; //...

I use Electrum with a multisig wallet. I would like to figure out how to prove ownership of a "coin". I understand that I need to share the whole redeem script so that it's hash can be ...