All Questions

The Bitcoin Core GitHub text says to ask my question here. I also asked on reddit but maybe this is a better place. I created a PSBT file from my online Bitcoin Core wallet. I transferred it to my ...

Bitcoin secures its network by forcing miners to solve a cryptographic puzzle who's difficulty increases based on the total hashing power of the network. If someone were to develop an algorithm that ...

Yesterday, I dug up my old computer, set it up physically, installed Linux Mint with full disk encryption, installed Bitcoin Core through its software manager, started it, immediately selected "...

I'm currently in the working to set up a Bitcoin node on my raspberry pi. I'm wondering if I should hide my IP address? If so I'm would like to know why just out of curiosity.

In the question Do larger blocks make it harder for smaller miners to compete? Why? there are some reasons given for why larger blocks hurt smaller pools. Is this still the case with spy mining? Spy ...

After downloading the full blockchain, how can I parse it and generate such a database? Can you point me in the right direction?

I have this settings : const emercoin: NetworkConfig = { mainnet: { messagePrefix: '\x18Emercoin Signed Message:\n', bech32: 'emc', bip32: { public: 0x0488b21e, ...

24 hours ago, I finally bit the bullet and dug up my old computer, set it up physically, installed Linux Mint (with full disk encryption), installed Bitcoin Core through its software manager, started ...

One of the main reasons it's not considered safe to accept Bitcoin with 0 confirmations is due to the possibility of a double spend (where Mr. Scammer first sends 1 BTC to Alice and then creates an ...

I upgraded to 0.21.0 a couple of days ago and noticed I'm no longer getting incoming connections while using Tor as a proxy. Was fine before the upgrade. 'getnetworkinfo' shows "reachable": ...

Created nlocktime with electrum and used the time date feature which is using unix time instead of block height number for the locktime. SO when pushing the raw tx before its time I get code 26 ...

I'm using Python and the requests library to get some data from Bitcoin using RPC. For example, from the getblockchaininfo call: "size_on_disk" : n, (numeric) the ...

If I understood correctly the current transactions are included in the generation of the next block, thus these transactions get verified. But what happens when all 21 million bitcoins are already ...

Can anyone shed some light on why this is happening? Firmware is reporting 15TH/s but BFGMiner says its only running at 200GH/s

https://youtu.be/FnKrMKo_WlU?t=293 He's basically saying that if I send you Bitcoin right now, you can forever know how much Bitcoin I have and who I do business with. He's also saying that Monero is ...

If written on a piece of paper, would the recovery seed phrase or questions for accessing a collection of web wallets and hardware wallets be safe to keep in a mini vault drawer at the bank? Do bank ...

Dear colleagues of the crypto community! I am Roman Frolov (Vader), a private investor and trader, was subjected to a new version of a micropayment attack (dust attack) and was robbed of about 335....

I've heard many times that you are supposed to write down a "recovery seed phrase" (a series of English dictionary words) on a piece of paper and store that securely so that you can recover ...

I've just sat an old computer with fresh Linux Mint and Bitcoin Core installed to sync from scratch. Since its HDD is 250 GB, I had to enable "pruned mode" since the blockchain is currently ...

I know MuSig makes n of n multisig scriptless. However, can we also aggregate multiple internal public keys in one public key, and unlock funds using either one of the internal public keys?

I have read that it is not possible to reverse transactions already added to the blockchain but I do not understand why that is not possible in a 51% attack. If an attacker was to change the ...

BitGo wallets are based on a 2-of-3 multi-signature, the end user have access to: - Public key (xpub) of the 3rd signer - Native segwit (Bech32, bc1...) address to receive BTC - Private key seed (...

Example: http://www.livebitcoincharts.com/ On that chart, it starts at $135. That's quite a sum to start with. Why does it only start in 2013 when it started "blowing up" for the first time? ...

Ive gotten this error a lot of times and dont know the fix, ive ran it as an admin and it still isnt working. any help? C:\Windows\system32>REM Example bat file for starting PhoenixMiner.exe to ...

I couldn't find a satisfying answer to this 51% attack issue, so for a new blockchain with only 300 mined blocks, from my understanding the attacker has to rebuild all the blocks from scratch, is that ...

GAP600 is a service (that has processed $5 billion in cryptocurrency) which allows exchanges and payment service providers to process Bitcoin payments instantly (0 confirmation trx). It guarantees a ...

Can someone tell me what the name of the last file name in this chain supposed to be? Is it the bitcoin folder that has everything in it? i.e blocks, database, confit files etc. Or is it just a single ...

I'm trying to compile Bitcoin Core v0.10.0 on Ubuntu 20.04, but then I get the following error: rpcserver.cpp: In function ‘void StartRPCThreads()’: rpcserver.cpp:594:77: error: no matching function ...

I am having trouble setting up mining with antminer. I have a gpu rig which is successfully mining with 2060 rtx on bitcoin with bfgminer at a hashrate of 1.5gh/s Obviously 1.5gh/s is nothing compared ...

If a Bitcoin address was created upon the opening of a Binance or Coinbase account, is there anything in the address itself, or its activity, that can give clues to whether it was in fact created on ...

Is there a way e.g. API which would allow me to obtain the historical time series of price of BTC in dollar on Simplex (including open, close, high, low if possible)?

I bought 200 bitcoin in the year 2012 and i've come to the point where i feel i need to withdraw some of it.... But i'm having some difficulty doing that. How can i withdraw a large sum of bitcoin and ...

ive just purchased a 2nd hand s9i antminer, got it for £200, a great deal i thought, what tasks should i perform before installing? i was thinking of opening it up and looking inside, just to see what ...

Inherited bitcoin. Want to sell. Have wallet.dat on my computer. How to sell the bitcoin in the wallet? Do I need a passcode ?

Several books claim that as the hashing/computing power increases, the bitcoin network is securer. How can a non-techie sees that from a practical standpoint?

I am trying to use RippleAPIs to transfer USD to INR from Bank A to Bank B. Here are detailed steps: Created two addresses, and added 100 XRP each, so account got activated. Setup trustline between ...

I'm baffled by how "cheap" the existing hardware wallets look and seem. They seem to have been made "at a budget", with no real high-end version available. If I owned something ...

Any sites, forums dedicated to developers new to bitcoin. Any recommended git repo, site that shows how to interact with a node, do .i.e. p2sh,p2pkh on testnet.

I can't sleep at night due to my unencrypted cold storage wallet.dat having frequent contact with my Windows 10 nightmare machine. I've therefore decided to set up an old computer (with a 250 GB HDD, ...

The mobile application cashapp specifically says I can send bitcoin to any address anywhere in the world for free. Coinbase also says they can do off the network transactions instantly and for free as ...

I am still a Rookie regarding bitcoins and therefore apologize beforehand if I might use some words wrong. I started a bitcoin wallet through a provider some years ago and bought some bitcoin. The ...

I wonder about the random number in R value ... if i am right , the R value is First part of the script signature which is combined of two parts (r,s) r = Gk (elliptic curve scalar multiplication) Or ...

I was discussing various light client models and we got into unconfirmed transactions. With the BIP37-based bloom filters, a light client would subscribe to updates from full node peers by submitting ...

I have Noticed Something strange to me Newly Used Bitcoin Addresses show repeated very short Signatures and Multiple Witness ?? and Some not even any signature for the transaction ? what is happening ...

Using only command line (no GUI), how can I create watch only wallet based on descriptor and get first unused address? This is the descriptor: "wpkh([00000000/84h/0h/0h]xpub6DP....xyz/0/*)#...

"Download Bitcoin Core": https://bitcoin.org/en/download "Download Bitcoin Core": https://bitcoincore.org/en/download/ I've been alternating between the two sites for years. I have ...

On Bitcoin.org, the page on getting started has a button for "Buy Bitcoin". It links to page with a dialog box that appears to be an interface to the service, MoonPay. MoonPay has a page, &...

Non-segwit nodes (legacy nodes) see segwit transactions as anyone-can-spend (ACS) transactions. It is clear that such a nodes can (and do) validate blocks containing ACS transactions, because the ...

I would like to know is there a limit after which a miner cannot include a transaction into his block.

Lots of articles about bitcoin say that anyone can see all the transactions that have ever taken place, and they call that "the ledger." But none of those articles give a link for where to ...