Unanswered Questions
111 questions with no answers
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Understanding signrawtransactionwithwallet and the Transaction Signing Process
I would like to understand all the advantages of a descriptor wallet.
I comprehend that the wallet safeguards the user by not exposing the private key. However, when I use bitcoin-cli listdescriptors ...
- 1,004
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An efficient algorithm for multi-address transactions in a deterministic wallet
I am developing my Bitcoin wallet (testnet) on Python using the Cryptos library. I started integrating support for deterministic wallets and mnemonic words. Now I have enabled users to generate ...
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Getting everything from an xpub
I wrote a small Web Application to display data to the user. I want a crawler in the background, fetching all the data (transaction etc) on all addresses. All the user enters is his xpub. I know this ...
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faster way to get bip44 address from mnemonic?
Long story short my 12 word seed phrase has a passphrase and I forgot the order.
So I did all the permutations of the 12 words to find the valid ones (29939407). So the script below is my way of ...
- 872
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Master Node(BIP32 Root Key) to xpriv and xpub
I struggle to make a python script that can make xpriv and xpub (extended public and private key) from the Master Node (BIP32 Root Key). I've derived the Master Node from the BIP39 seed with ...
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Bitcoin RPC BrokenPipeError on specific block/transaction
I have a simple python app running through the blockchain as follows...
rpc_connection = AuthServiceProxy("http://%s:%[email protected]:8332"%(rpc_user, rpc_password))
for b in range(blockStart, ...
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How to add elliptic curve points from a file?
i'm just a tech newbie learning how ec cryptography works and stumbled into a problem with my python code
i'm testing basic elliptic curve operations like adding points, multiple by G etc, let's say i ...
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How are crypto wallets derived? Specifically the BIP32 Root key
I realize this is a very broad question. I'm not getting helpful resources from anywhere. White papers don't really explain the code, YouTube videos are vague or abstract, demonstration sites don't ...
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How to write down an entire Bitcoin Core wallet through text
I have unclear ideas and I write because I would like some good soul to clear them up.
I'm looking for a way to be able to recover a wallet created with Bitcoin Core, having only a short sequence of ...
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Creating an OP_Return TX with Python bitcoinlib
How can I create an op_return TX with python bitcoinlib?
The transaction should include the OP_RETURN HEX-Data and an address where I send my change money
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HD wallet root seed length
Mastering Bitcoin describes the process of generating the HD wallet seed:
"1. Create a random sequence (entropy) of 128 to 256 bits."
... 6. The mnemonic code is the sequence of words.
... 9....
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How does Ed25519 fit in with BIP32/44 HD wallet paths?
From my understanding, BIP39/32/44 all use the secp256k1 elliptic curve standard from Bitcoin. But I noticed that cryptos such as Polkadot and Cardano have their own registered coin type path for ...
- 113
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How do you Derive Addresses from a BIP49 Master Public Key using P2WPKH-P2SH?
I am trying to derive addresses from a master public key (aka extended public key) in python. I don't fully understand the math behind the key derivation, but have been able to decode the master ...
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What's up with the block size of block# 295182?
I found an anomaly in the block size data: block 295182. This one seems to have a way higher payload. What happened there?
Or is this there something wrong with my parsing? This file block does ...
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Process for finding nonce
Assume we have a transaction in hex (tx_hex) and we want to find a nonce such that
SHA-256(SHA-256(nonce|| tx_hex)) = new_transaction_id ('||' denotes concatenation)
first bits consist of 32 zeros. ...
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