All Questions

I am need help for write mining python for BTC ETH and other coin. I am connect to pool port. port used tcp stratum protocol. okay whats process reqeive and send block?? and python block decoder hash.

I am setting up an Electrum server, but I noticed that the blockchain contains child pornography. I don't want to distribute such unethical data. What are the transaction IDs of such transactions, ...

I always learnt/thought bitcoin blockchain is like a linked list and it can have only one parent and one child at max

I want to know if I misunderstanding shorting a currency in which I hold collateral on? In my margin account I have 1 BTC I short only 4 BTC on BTC/USD even though I am allowed up to 10x (The ...

I have to move homes, so my Bitcoin/Lightning node will be offline for around 1 day. What happens in this case to my Lightning channel? Will I be penalised for being offline by the system? How should ...

I have a list of transactions in this form 6c665f1d784d2032a13fa0986f08a3306bb1a4430049787cb1b692ed0d5d9bde,302,1136,cbf57b4e77708a6d920a63e9584cb482b03c42374b6a49e6057170a9354a89c5 txid, fee, weight, ...

if I got custom Node and Alice has 3btc and bob got 0btc and bob got 0btc with Tom 1 btc. Is it possible we can change channel for Alice 3btc with Tom 1 btc. And close Tom. And it doesn’t go to on-...

I compile bfgminer like so: ./configure --enable-cpumining make I run it like this: ./bfgminer --cpu-threads 3 --algo c --generate-to 1Fasdfasdf --url localhost:8332 -u rpcuser -p rpcpassword ...

So I am trying to full understand how to decode transactions. In the dev docs it discusses a raw transaction: https://developer.bitcoin.org/reference/transactions.html in the paragraph "TxOut: A ...

I have become fairly familiar with constructing raw transaction. One thing I can't understand is after a raw transaction comes back from a signing, it doesn't look like it conforms to the transaction ...

I'm interested in a comparison between different blockchains and payment networks. Bitcoin has a block time of around 10 minutes, so there should be roughly 52,560 blocks in one year. However, the ...

Why do we need so many miners, if we anyways only can add one block every 10 minutes? I mean if the current block height is x and we now need the block of height x+1 only one miner will be rewarded ...

Imagine a web page that wants to accept Bitcoin donations. A naive approach is to provide a single address on the page and that's it. The problem here is that the address is known to everyone and if ...

I have a wallet that has several hundred small amounts residing at multiple addresses. I noticed yesterday that, when sending a relatively small amount to a third party that the bitcoind "swept&...

If two nodes in the bitcoin network receive the same transactions and now both are trying to find a proof of work of the current block, wouldn't this be inefficient? Because presumably both nodes are ...

I am sufficiently familiar with what it takes for something to be a currency. This is not a question about whether bitcoin is money, this question is exclusively about whether bitcoin meets the ...

I've recently looked up the exact format of a transaction and came up with this (source with explanation): However, this seems not to include transaction fees. Are they not part of the transaction? ...

Assuming users have upgraded their wallets to handle P2TR outputs and trust the validation rules of P2TR, would there be any advantage of using P2WSH over P2TR?

I've originally out the Q here https://mathoverflow.net/questions/395108/can-the-same-dataset-be-described-as-chaotic-pareto-power-law-distribution Because I believe the most specific opinion should ...

Why is Bitcoin Core onion service created when I have not mentioned anything related in bitcoin.conf? bitcoin.conf in Windows (data directory): prune=2048 bitcoin.conf in Fedora (running bitcoind) ...

I found an old BTC wallet. The password should have about 8 characters but forgot it unfortunately. Is there a realistic chance to recover it or is this hopeless?

I have read that Proof-of-Stake is way more energy efficient than Proof-of-Work mining. Is there any reason why Bitcoin is not using Proof-of-Stake instead of Proof-of-Work?

I want to use the secp256k1 library https://github.com/bitcoin-core/secp256k1 (or, more specifically I want to use the python wrapper https://github.com/electrumsv/electrumsv-secp256k1). I have a ...

I faced the problem twice in 2020 and the reindexing takes 2-3 weeks without stopping. I got the same error on another hard drive when it reindexed about 50% and got an error in the last .ldb file. ...

I'm using createrawtransaction to get a complex transaction of 2 inputs and two outputs as discussed here: https://developer.bitcoin.org/examples/transactions.html bitcoin-cli -regtest ...

I tried to import an example Taproot descriptor using bitcoin-cli importmulti tr(c6047f9441ed7d6d3045406e95c07cd85c778e4b8cef3ca7abac09b95c709ee5,{pk(...

Are the new Taproot addresses (SegWit v1) also a hash of the (potentially tweaked) public key, or is the public key directly encoded into the address, without hashing it?

How would the most basic taproot transactions (not involving scripts) compare to P2WPKH transactions in terms of vbytes or fees?

SegWit fixed transaction malleability by just moving the signature out of the block of data that's being hashed to form the transaction id. However, Schnorr does not suffer from signature malleability ...

With MultiSig, up to 20 signatures may be used in a treshhold signature scheme (What are the limits of m and n in m-of-n multisig addresses?). As far as I understand, there should be no hardcoded ...

HD wallets create derivation paths for generated keys. But if you need to regenerate these keys with your seed or master key, where do you get the derivation paths? I don't see how they can be stored ...

Public keys in the form of 04[x,y] can be compressed since the x axis is symmetrical. Hence we only need the x-coordinate with the 02/03 prefix which states if Y is odd or even. I don't understand the ...

I downloaded the most recent 15GB of the Bitcoin blockchain. But I also have a back up from a year ago when I downloaded some more. Can I merely copy the old blockchain files into ~/.bitcoin and have ...

When I run bitcoin-qt, it sets up a default wallet. When I ask it for the recipient address for this wallet, I was expecting something like 1FGasdfasdfasdf123asdfasdf. However what it actually ...

Suppose I want to send 10 000 sats to 10 different "receipt" address so that I own the 10 private keys associated with these addresses and can distribute them, the fact that the receiver ...

I don't care about profitability even in the least. I just want to try CPU mining as a benchmark. I compiled bfgminer with CPU mining enabled (via ./configure parameters) however when I try to run it ...

I am trying to learn how to write my own script from scratch. I have seen about a dozen examples by googling but non of them are complete. I am aware of btcdeb as well. Is there a tutorial that covers ...

Help me out its 12 days already and I'm yet to see it have tried my best since 30th please GEt back to me I have tried using the block chain explorer and it has been confirmed there but not seen yet

Let's say a server is set up to do ECDSA signing and you want to include the requirement to provide a ECDSA signature within your Taproot tree (script path). Is this supported?

If I only have a single script for the script path does the hash of the script get placed at the top of the Merkle tree (instead of the effective Merkle root) or does it get placed in level 1 of the ...

Is it possible to announce several IP addresses for a single lightning node? The idea is to run a node that is connected to different ISPs to increase its uptime. LND seems to able to run in a cluster ...

I understand that each transaction, new pairs of keys are generated, usually derived from a master key say in an HD wallet. If your change for a transaction or received BTC Is in multiple UTXOs, are ...

What wallet support for Taproot will be included in Bitcoin Core v22.0? What will I be able to do and what won't I be able to do using the Core wallet?

The definition of bitcoin transaction input and output that is there on the web is: Input = address from which money was sent, Output = address to which money is received 1. But when I looked at one ...

If there are atmost 10 malicious nodes in blockchain can exist at any time. The PBFT protocol requires 3f + 1 nodes to tolerate up to f malicious nodes, the admin A wants to have exactly 31 nodes in ...

As I understand, when miners add transactions to their candidate block from their mempool, they append the txn to the merkle tree, which requires more hashing, as well as the hashing/maths involved ...

I am reading there are a number of shops accepting BTC as payment. Is there any publication, estimate or lower bound on the amount of payments that were made to 'shops'? I won't mind if the definition ...

My transaction seems to be stuck im not sure why, made the payment around 7am and its now 6 in afternoon. https://blockstream.info/tx/9da37dc771e17d804c1d2695b1409a862b9016dc74326ce15daaaf1adc2a7b59 ...

I am looking for a coin which satisfies the following 3 condition: It is popular, part of the top 20 coin Transaction is cheap, transation fee is some cent All wallet uses this coin has a universal ...

Let's imagine a minimal version of the Lightning network with a single "central" lightning node (say a service provider which we can call a Server) surrounded by thin clients (the actual ...