Questions tagged [address]

This tag should be used for Bitcoin addresses. A Bitcoin address is an encoding of the hash of an ECDSA public key or a script. Knowledge of this value allows a user to send Bitcoins to another person over the network. Bitcoin addresses begin with a '1', '3', or 'bc1'. Not to be confused with mailing addresses or IP addresses.

Filter by
Sorted by
Tagged with
0
votes
1answer
47 views

How to display Recipient Address, Change Address & Transaction Amount

I have made A software in which i can Signed Transaction (From Electrum Un-Signed Transaction HEX), i just want to display the following thing to USER in Readable Mode : 1. Recipient Address 2. Change ...
0
votes
1answer
630 views

How to generate sub addresses belonging to one private key

We're creating a platform to buy/sell Bitcoin. We need to generate a new child address for each customer allowing them to receive Bitcoin. But all incoming Bitcoins should be stored in our main ...
2
votes
4answers
867 views

Is it wrong to spend Bitcoin from someone else's wallet if my Bitcoin client generates the same address?

I know this scenario is extremely unlikely but what-if by chance I get the same Bitcoin address as another user and the user has hundreds or thousands of Bitcoins in his wallet, is it morally/legally ...
0
votes
1answer
132 views

Transfer of BTC the wallet address p2pkh to wallet address p2sh

Is it possible to send BTC from wallet having address type p2pkh to the receiver wallet address p2psh
4
votes
1answer
369 views

How many possible addresses per bitcoin private key?

Based on my research every bitcoin private key (compressed or uncompressed) can have 4 different addresses: P2PKH compressed and starts with 1 P2PKH uncompressed and starts with 1 P2SH and starts ...
4
votes
2answers
5k views

Is there an Android app that will scan a QR code and show the balance?

What I'm looking for is an app that lets a person scan a QR code containing a Bitcoin address and then see the balance and transaction history for that address. For a specific use case, a mobile ...
2
votes
1answer
5k views

Selling BTC from BitMinter

I have started mining with BitMinter.com and am nearing a complete bitcoin. I have searched for hours for my account/wallet address so I can move bitcoins from BitMinter to an exchange. I can't seem ...
1
vote
3answers
67 views

How are UTXO forwarded to other addresses?

this is a pretty general, conceptual question. I feel I do not yet completely understand the blockchain transaction dynamics. Let's say, we have A, B and C trading on the Blockchain: A has ...
1
vote
1answer
161 views

How many bits of entropy is a Bitcoin address?

I've seen references to 160 bits of entropy, but I'm not sure if this is universal or just applies to the old address format.
32
votes
1answer
7k views

Why are Bitcoin addresses hashes of public keys?

Currently, Bitcoin addresses and their checksums are constructed from the public key by a using repeated hashing with SHA256 and RIPEMD160. Now I understand the reasoning behind using hashing for ...
2
votes
3answers
2k views

If someone knows my bitcoin address, does this mean they can spend it or move it?

What if I wrote down or saved a file with the address on and someone found it, can they take my coins? How secure is it?
1
vote
2answers
241 views

Calculate transaction fee for external addresses which doesn't belong to my local bitcoin-core server?

I am doing transaction on addresses which are created outside of my local bitcoin-core server using third party lib. I am having its private/public key. I am able to create raw transaction using "...
1
vote
1answer
259 views

Bech32 Multisig error: Witness requires empty scriptSig (code 64)

I've been able to do multisig between two addresses from electrum and one from bitcoind. [root@test bin]# bitcoin-cli -testnet getnewaddress n3JewuY82cprdRvxHdRNG8C3iTkJBKeLbz [root@test bin]# ...
1
vote
1answer
192 views

How to get the pool name from coinbase transaction?

Is it possible to retrieve the name of the pool that mined a block looking at the address in the coinbase transaction? For example, the address in the coinbase transaction of block ...
0
votes
1answer
532 views

How to quickly get the balance of any bitcoin address? (with no third-party API)

As some people have mentioned (eg. here), the only way to get the balance of an address in bitcoin core was to import it as a watch-only address and rescan the blockchain. Starting with bitcoin core ...
0
votes
1answer
106 views

Get scripthash for known scriptPubKey in PHP

I have to query addresses in ElectrumX server. How do I generate scripthash for a known scriptPubKey in PHP? Example address: array ( 'isvalid' => true, 'address' => '...
1
vote
1answer
63 views

How to find address that holds the balance in Bitcoin Core?

I am unable to find the address that holds my balance in Bitcoin Core. All receiving addresses has a balance of 0. But there is a balance in the wallet. How do I find the address that holds that ...
1
vote
1answer
261 views

How to programmatically send Bitcoins without requiring a local copy of the blockchain?

I'm quite new to Bitcoin development! I've seen the documentation about RPC commands, available when you have a local copy of the blockchain. But I'd like to know if it's possible to create and ...
1
vote
2answers
72 views

Do mined coins show up on blockchain explorers and can the balance of the addresses that mined the coins be seen?

Somebody wants to do a deal for a bitcoin transaction but when proof of the coins is required they say that the coins will not show up on blockchain.info as they were "mined coins". Is this really ...
0
votes
1answer
45 views

Getting source address of a Tx message from it's signature script

I have a simple bitcoin packet which contains TX message. in a TX message, one of it's Transaction input hex data was like this: ...
1
vote
2answers
1k views

Converted Segwit address (YPUB) to Legacy (XPUB), but balances differ

I'm trying to convert a Segwit YPUB address I got from a Ledger Wallet to a Legacy XPUB address in order to query the transactions from the wallet. I've yet to find a reliable API that supports YPUB ...
0
votes
1answer
388 views

Transaction with unparsed input address ? What does it means?

I just see this transaction which is special : one of input address is spending a valid amount… But why is it unparsed ? Why no ScriptSig while stil being valid ? Also what’s the purpose ?
7
votes
4answers
32k views

Must my wallet be connected to the internet to receive payments?

(This question applies to private wallets, stored in a local computer. Not so much for online wallets, which are supposed to always be connected to the internet) Let's say I have a wallet with ...
13
votes
1answer
5k views

How can I use the vanity name generator to look for an address?

How do you use the vanity name generator to look for an address? Is there an estimate on how long it takes to find addresses of varying lengths and complexities?
2
votes
1answer
52 views

Cannot get the same address format from zeroMQ and Bitcoin Core

I use nodejs with this npm library: const bitcoinjs = require('bitcoinjs-lib'); // version "^5.1.6" I received a rawTx from zeroMq, then extract it: const tx = bitcoinjs.Transaction.fromHex(rawTx);...
0
votes
1answer
44 views

How Extracting address Bitcoin to script multi signature

I want to extract the correct address from a script multi-signature. I have this real script multi-signature from this ScriptSig (tx index 1), so this is a readme script for this address OP_2 ...
0
votes
0answers
104 views

Trying to programmically generate unused receiving address from a xPub

I'm trying to generate unused receiving Bitcoin address from xPub using PyWallet python library . I got the xPub from my BIP32 Electrum wallet. Here is what I tried from pywallet import wallet ...
0
votes
3answers
79 views

How can the wallet identify public addresses are linked to a private address

As the wallet can generate many public addresses from a private address. How does the wallet know that any transaction from or to the wallet is for that private wallet if the in and out can be any ...
0
votes
2answers
3k views

how to get the whole balance of a privatekey or publickey BTC

As there are some bitcoin address types of one privatekey or publickey. I can get the balance of one address, but how can I get the whole balance of the privatekey or publickey. How can list all the ...
2
votes
1answer
78 views

Address Reuse issue

I dont understand how security works with multiple address using. I am trying to guess how security works here but need some feedback, so here are a few questions, and my own guesses. If I have total ...
0
votes
2answers
98 views

Who do I send money to if I want to create an OP_RETURN transaction

I simply want to store one small string in the blockchain. That's it. I am reading here a step by step guide but there is little in terms of explanation beyond the code snippets. What I would like to ...
0
votes
1answer
36 views

What is the dummy_address when creating an OP_RETURN in this example?

Here we see: mainnet = 0 if mainnet: dummy_address = "1111111111111111111114oLvT2" else: dummy_address = "mfWxJ45yp2SFn7UciZyNpvDKrzbhyfKrY8" What is this? No explanation is given. Can I ...
1
vote
1answer
798 views

What are the difference between a segwit and legacy wallet

I am installing a mobile wallet and it ask me what type of address I want to use, I want to try and use a segwit address but is there a risk that my coins will be lost if I try to transfer fund from ...
5
votes
3answers
1k views

What is BIP32-style derivation?

I am reading the technical "specification" for stealth addresses, available here. The core idea is described in the following paragraph: Using Elliptic curve Diffie-Hellman (ECDH) we can generate a ...
1
vote
3answers
738 views

How can I generate thousands of receiving addresses from a Bitcoin wallet?

I want to generate thousands of receiving addresses without sending any BTC to another wallet. Is it possible and how?
1
vote
1answer
105 views

address list in “getrawtransaction”

i have a confuse about the "getrawtransaction" RPC function,it returns a json object, which contains the addresses list in the "vout" object,like below.It took me some time to understand when the ...
1
vote
1answer
139 views

How do miners determine if a wallet has sufficient funds

I have ready about 10 posts that are similar and none of them seem to answer my question so any help is appreciated. My question is how to miners technically determine if a "wallets" has the "...
5
votes
2answers
761 views

Remove address sub from blockchain websocket API

According to the docs, Blockchain.info provides a websocket API that streams a few things: All unconfirmed transactions using "op: unconfirmed_sub" New blocks & the data they contain using "op: ...
3
votes
1answer
125 views

Bitpay unused address - has balance

So, I have a wallet - and the balance is incorrect. I have looked into it a bunch and finally tracked down what I think is the issue. If I view all of the addresses used in my wallet I see a list of ...
3
votes
1answer
164 views

Fundamentals: Addresses don't hold coins, wallets do?

In the beginning it was my understanding that: Every address has a private key Every address has a balance Every address may send and receive coins. This is simple. But now I am using more proper ...
0
votes
2answers
43 views

Can addresses used in a single tx be assumed to be from the same wallet?

can addresses of input of a single tx be always considered as belonging to same account? Above is a sample transaction on bitcoin. Here, input addresses are 3P2hJg8iRSBExAjd9yQGaazCLPFLeGB3hU (0....
7
votes
2answers
583 views

Most efficient way to store Segwit Address in a database

This is not a duplicate of What is the most efficient way to store bitcoin addresses in a database? but it's the same question except I need a segwit answer. Let's say I wanted to store every ...
8
votes
5answers
3k views

Which programming languages support secp256k1?

Which programming languages have some ready libraries that support Bitcoin's ECDSA curve - secp256k1?
1
vote
1answer
940 views

How To Traverse Bitcoin Addresses in HD Wallet

It appears that there are many way to traverse Bitcoin addresses. I am looking best practice, and I am also looking for the documented logic of how common wallets do it so I can replicate their ...
1
vote
1answer
55 views

about Bitcoin address

I'm studying bitcoin. I have a question because I was curious about the part of wallet. Can I send it to the wrong address format? The address format is correct, but is it possible to send bitcoin if ...
4
votes
1answer
1k views

How do I export an xpub from Bitcoin Core for use in BTCPayServer?

I'm using Bitcoin Core 0.17, and using bitcoin-cli getaddressinfo method to extract xpub for a given address. This xpub is 66 characters long, and I'm using BTCPayServer which needs this xpub and I'...
5
votes
4answers
8k views

Bitcoin QR codes: raw address or Bitcoin URI scheme

I am the author of bitcoinaddress.js library and I am wondering what's the best content for Bitcoin QR codes. What Bitcoin QR codes should contain (for mobile wallet apps and other barcode scanners): ...
0
votes
1answer
645 views

Generate QR code for multiple cryptocurrency addresses

I want to generate my own QR code with my main cryptocurrency addresses without using an online solution, is there maybe a command prompt way or particular piece of software I cam download for this, ...
0
votes
0answers
51 views

Bitstamp and deposit address

I have a Bitstamp account and when I try to use the API for bitcoin deposit I discover that there is a unique address for my bitcoin deposit. It is safe in term of address reuse consideration ? Here ...
1
vote
2answers
244 views

Convert 33-byte public key with no parity prefix to address

I'm writing a blockchain parser and I keep running into this type of scriptPubKey in the Litecoin blockchain: 20a75ca72ffd994d2004d67b0e89015913f7352455d0111ede590430037c9fe2ac ...

1
3 4
5
6 7
20