All Questions

if the hardware wallet company ledger goes out of business, what will happen to my crypto asset / private keys in ledger? I heard that the hardware wallet ledger is not open-source, so will the ...

I am working on setting up a node and a normal consumer just to understand how all this works and I have the node up and running and my normal consumer. I see the connection is accepted on both ends ...

four years ago I purchased 0.43 Bitcoin from localbitcoin.com. I received the Bitcoin and sent it through a bitmixer to one of my wallets. I checked all wallets and nothing was ever received. I have ...

I have a regtest bitcoin environment with nodes and wallets. I'm running bitcoind and bitcoin-cli, version v0.21.0.0. So in my node i created my wallet with a bitcoin-cli -regtest createwallet node1 &...

I have multiple partially signed transactions that I want to combine into one transaction. All those transactions were signed using the same key so it should be possible to combine all those partial ...

I have tried to test signet to generate new block but it is showed message as below: bicoin-cli -signet -generate 1 ERROR: ProcessNewBlock: AcceptBlock FAILED (bad-signet-blksig, signet block ...

The Investopedia article on Bitcoin explains the Bitcoin issuance schedule and how it's halved every four years. Currently, roughly 18.5 million have been mined, with the total cap being 21 million. ...

I use Trust Wallet and Crypto.com DeFi Wallet. I wanted a particular coin in my DeFi Wallet. I copy the Receive address from DeFi Wallet, paste it in my transfer, and the coin goes to Trust Wallet ...

I have downloaded and fully synced with my Mac last Saturday, my Bitcoin Core version is v0.21.0 and my Bitcoin-Qt version 5.9.8. I did run other RPC commands such as "getrpcinfo" and it did ...

From the miner perspective: You have a worker, fetching data from a full-node with getblocktemplate to create a candidate block and push it to the miners, to effective mine it. As soon as your miner ...

I have download bitcoin source and change genesis in regtest. and i try to generate 1 block by command ./bitcoin-cli -generate 1 it does not show any mining block. i try over 10 times but it is still ...

My plan is to make a multisig between coldcard and trezor. I want to audit and verify that I indeed own the 2 keys of these wallets, using a raspberry pi zero (no wifi/bluetooth by definition) on a ...

Well, I am really new to this. Just installed libbitcoin and I am reading trough the wiki and everything. Could someone really quick hint me how to generate addresses whenever I want from xpub that ...

I am trying to understand about what bitcoin is. I conceptualize bitcoin as a proof of work required when a new block (or new coin) is created. I also understand that a proof of work involves finding ...

A common way of committing some data to the chain is through an OP_RETURN with some hash. Doing this marks an output unspendable, but the output still requires some footprint (and cost) on the chain ...

Hyperledger Fabric offers the ability to create private data collections, which allow a defined subset of organizations on a channel the ability to endorse, commit, or query private data without ...

I've been diving into the world of Blockchain and crypto lately, trying to build my understanding of mining specifically. I understand that in POW systems, the difficulty of the first block is 1, and ...

Are you able to relocate your node's physical location (i.e., move from Oregon to New York) and keep all the channels you've established intact?

I checked the bitcoin explorer to check if the bitcoin is in and Yes it is but it stays unspent but it has not reflect in the wallet of the main address for 7days now ...

whats the best time to buy btc?

What I have learnt that mining is breaking a block which contains transactions using hashing algorithm (Sorry if this is wrong please do correct me). Now my question is how mining will work for a new ...

var address = new BitcoinPubKeyAddress("My Pub Key", Network.TestNet); var client = new QBitNinjaClient("http://tapi.qbit.ninja/", address.Network); var balance = await client....

I have been working on a fork of Bitcoin/Litecoin, and was able to run sudo make && sudo make install with no issues. However when I run kangrocoind (kangrocoin is name of coin), it will ...

I'm implementing a bitcoin CPU miner just for fun in python. I've been reading a lot about bitcoin and the protocol pools use for communication and coordinating workers but there is a key concept I ...

Let us assume a hypothetical scenario for the sake of simplicity : Current price of bitcoin is $100 Total bitcoin in supply are 1,000,000 Total no. of bitcoin as 2,000,000 No limit orders on trading ...

I have a full node running bitcoind, and I am wondering how to solo mine using BFGMiner, CGminer or similar software. since my reputation does not allow me to post my answer to another question... I ...

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 ...

I would like to know how bitcoin works from a mathematics standpoint

My transaction 5c8552a6744b3428d3ec4b5c0dd8b378ffeb4efd703b76a2b9d106250234d766 Has been unconfirmed for 10 days is there anything I can do to get it confirmed or do I just have to wait?

new here and haven't found an answer to this conceptual question: Crypto is said to have solved the coordination problem through rewards and punishment (honest users are rewarded; dishonest users are ...

I am reading the SEC prospectus Coinbase's initial public offering, available here. On page 20, it is written: Many crypto assets have concentrated ownership or an “admin key”, allowing a small group ...

I am very new to bitcoin scripts, and need to design some high level bitcoin protocols without enough time to really dive into the details of the language itself. Is there a way to write a script that ...

I sent someone Bitcoin but they said they didn't receive it because their phone is powered off but I got a complete transaction confirmation

We have a large solar array and when our equipment is not running we have to curtail the power to prevent tripping the next town. So for about 45-50 hrs per week we have about 300KW of available and ...

Does port 8333 need to be listed in TCP_OUT in a firewall or in TCP_IN as well?

Given paper backup of 24-word BIP39 mnemonic and passphrase, how can one confirm integrity of Electrum wallet given "Wallet" / "Seed" is greyed out?

i'm trying to understand bitcoin transaction extract from bitcoin core with RPC, with an example this block hash : 00000000d14f2e97678951ad004d6699babd27e07ca722c46b30dc24c67eed7a {"method": ...

An example of the output of this RPC command is as follows. 1 "height":n, (numeric) The current block height (index) 2 "bestblock": "hex", (string) The hash of ...

The verification passed. But nothing happen after that. The balance in both accounts remain the same. Anything wrong in the way that I build my transaction? var fpk = new BitcoinSecret("<my ...

I have send my version message to a bitcoin node and the hexdump of his answer was this: https://pastebin.com/QBNaeS0g Maybe this is a network related question but I want to know the version used by ...

How bitcoin daemon search nodes to connect? What file in github responsible for this? How they often change? How is the veracity of the data of these nodes checked? Bitcoin daemon have function not ...

New to mining. I am trying to figure out how to use lolMiner on Ubuntu 20.04. Here are the specs of my GPU: *-display description: VGA compatible controller product: ...

Is there an estimate for the fraction of miners engaged in Selfish Mining within the BTC network? In light of the publication The Impact of Selfish Mining on Bitcoin Network Performance (2021), ...

it is giving this message The unit bitcoind.service has entered the 'failed' state with result 'exit-code'.

I can't seem to find actual documentation about the reward halving process. This is not addressed in Bitcoin's Whitepaper, although Satoshi Nakamoto briefly mentions the decrease of the reward, but ...

i'm not too sure that this is the right place to post that, if it isn't... sorry, i'll delete that I'm pretty sure that some gambling site's (in particular with the crash game) source code can be ...

I sent BTC from Paxful to an exchange called LAtoken. $36 worth of BTC was sent, nothing major to anyone else but really huge to me. Cope pasted and confirmed address. NO btc arrived almost a day ...

I am running my own node bitcoin core , mainnet and testnet , with trezor custom backend Blockbook, so that i can access my nodes wallet, send tx. on trezor wallet. I am not able to sync the chain ...

I am wondering why we need Mempool (central and aggregated pool) while each miner has its own pool? If we need the Mempool as an architectural design, how we can make sure that miners are sending ...

I'm looking for the historic circulated supply of Bitcoin. I'm aware I can get the current supply by creating my own node. But I need the supply at a given date. Does anyone know of an API to get it....