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.

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Witness Version bech32 and P2TR

I don't fully understand the meaning of the witness version byte. I am not sure if I confuse the address format prefix bc1 with the witness version. My understanding: The extra byte reserved for the ...
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existing solution to build a bitcoin address-balance index

I've a full node running in a AWS vm. I want to develop an app which would be able to provide balance for a given btc address. I know blockchain.info and blockexplorer.com exists but I want to do my ...
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What time of encryption from late 2000s contains house, smileyface, squares, letters and numbers?

Have a encrypted password or key typed to paper, i vaguely remember doing it, not sure if note pad was involved or some site , i remeber something about sha-2 , and sha- 256, and why i should use one ...
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What are These Long Addresses in the Loyce.com Address List?

I'm trying to understand Bitcoin address encodings. I understand there's three (four?) different address encodings P2PKH, P2SH, Bech32, and Bech32m (Bech32m just uses a different constant when XORing)....
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How can i recover my specific wallet using the 12 word mnemonic?

I just can't understand how can i use the 12 words instead of writing all the numbers related to the address/private/public keys. When i go to iancoleman.io the output is several addresses, private ...
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Can a wallet start with 20 and how can it be generated?

Someone claims a wallet can start with 2 on btc mainnet. How possible is dat. I knw 2 is the testnet pay 2 script wallet type. If its possible. How can it be generated?attached is an example of the ...
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3answers
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How does a recipient share his/her address with a sender?

Person A wants to send some bitcoins to Person B. How will Person A come to know about the Person B's address? And for every transaction Person B's address (as well as Person A's) changes. How will ...
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2answers
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How many characters of an address do I actually need to verify?

Let's assume I want to verify the receive address on the phone. The recipient confirms the first M and last N characters of the address. How big is the computational effort for an attacker to create a ...
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1answer
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Why P2SH seems to be never smaller than 34 characters, unlike P2PKH?

Why base58 of P2SH invoice address seems to be never smaller than 34 characters; unlike base58 of P2PKH invoice address, in which 33 characters is very common? Bitcoin wiki tells (format and emphasis ...
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Identify original exchange from Bitcoin address on my ledger

Hi I am being asked to prove which exchange I bought Bitcoin on from several years ago. I have the BTC address on my ledger. Is it possible to trace backwards?
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Signature doesn't prove that the owner of a Private Key produced a given message

Let's assume I am a developer of Bitcoin wallet. If I create a private key without implementing a seed phrase methodology (not using the principles of BIP32 and BIP39), is there at least the slightest ...
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1answer
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Specifying delivery addresses on channel closes - includes force closes?

In https://github.com/lnbook/lnbook/blob/develop/07_payment_channels.asciidoc We see this block of text: Typically the addresses used in this cooperative close transaction are generated freshly for ...
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Script type test vectors

I'm looking for test vectors, assuming xpub or public key to derive various script type addresses out of it. Something along the line of https://bip32jp.github.io/english/ but not only for P2PKH, but ...
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2answers
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Trace Bitcoin Fund Flows When There Are Multiple Input and Output Addresses

I'm trying to analyze transaction data and wondering if there's a way to tell how much was transferred from one wallet address to another when there are multiple inputs and outputs for one transaction....
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Accessing Bitcoin wallet with bitcoin address [duplicate]

In 2017 I created a bitcoin account and forgot all about it. I have the bitcoin address key though. Is there anyway I can recover the bitcoin wallet now?
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1answer
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Bitcoin Core v.0.14. doesn't recognise recipient address starting bc1

I have some problem with sending Bitcoin from Bitcoin Core v.0.14. When entering the address in recipient field it becomes red. And I noticed that the address to which the translation needs to be made ...
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2answers
533 views

How to protect my private key from an unexpected new owner of the address that already belongs to me?

I understand that the situation I am describing is unlikely (because we have 1.46 Quindecillion possible Bitcoin addresses), but let's imagine that someone generated the same address as mine. Is there ...
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2answers
233 views

Static Wallet Address

How do I make my account static so the address stays the same. The bitcoin wallet address keeps changing and I need to figure out how to make it stay the same
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Nonstandard Address in BigQuery

Is anyone else seeing this output when they use BigQuery? There are a lot of addresses marked as nonstandard. This is an open issue on bitcoin-etl, but I’m not sure how to fix it. Does anyone have ...
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1answer
53 views

How can I get transction destination address from raw transaction data?

I am writing a program that reads Bitcoin transactions from .blk files and performs some analysis on them. I would like to get transaction destination address (like in some transaction explorers: link....
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My transaction is in review for over 24hrs on blockchain, I want to cancel it

Please I want to cancel my in review transaction on blockchain. How will I go about it. Please help me,I need answers as soon as possible.
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1answer
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Why does Bitcoin Core support a transaction index but not an address index?

Bitcoin Core has the CLI option -txindex to maintain a full transaction index for RPC calls. That sounds useful for some use cases, like for a blockchain explorer. It seems perfectly logical then that ...
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Nothing-Up-My-Sleeve BTC Addresses [duplicate]

I've been researching some crypto related concepts and came across "Nothing-Up-My-Sleeve Numbers" and from what I understand I can generated a Bitcoin address that basically comes with an ...
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1answer
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Why is this burn address starting to get confirmations?

Can anyone explain why the burn address 1111111111111111111114oLvT2 started receiving confirmations only on 8th June? 1st transaction is 11yrs? I thought a burn address doesn't get any confirmations, ...
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1answer
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convert from public address format to raw transaction format

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 ...
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1answer
60 views

Payout address format has changed?

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 ...
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1answer
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Creating multiple bitcoin receipt wallet

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 ...
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1answer
76 views

Why are the addresses in the same block in bitcoin and bitcoin cash different?

Bitcoin cash is a hard fork of bitcoin which means that before a certain block number (478558 according to Wikipedia) the blocks are the same for both bitcoin cash and bitcoin. I was looking at one of ...
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Is Bitcoin a scam or safe to invest in [duplicate]

Is bitcoin a fraud/scam? If not, why are there people constantly calling it a Ponzi scheme, a pyramid scheme or other things similar? Does this indicate that these things have something in common in ...
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1answer
247 views

Support for P2WSH-wrapped P2TR addresses

Given that Taproot addresses use a new SegWit version and a new address encoding (bech32m), it's reasonable to expect a transition from the ecosystem to this new address version similar to what we saw ...
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How do I find out where my bitcoins got sent to? [duplicate]

I withdrew bitcoin from my account in Binance in 2018 and still have the email they sent with address it said it sent to,18bVuA2FxDdz5gE4qf9MgbsNxp2F46PaLD The time and amount looked correct. Now I ...
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1answer
64 views

Is it possible to find additional key pairs resulting in the same address that I already control?

I'm not really well versed in the necessary terminology to get the answer I need from searching. As I understand, there are 2^160 possible addresses, and 2^256 possible private keys, so each address ...
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1answer
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Validate Bitcoin address using Javascript

I know there is a similar question but its 7 years old and the answer doesn't work. Now, many things have changed, including the addresses themselves. So, is there a js library I can trust that can ...
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1answer
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How do you generate a Bitcoin wallet by hand?

I am interested in the exact process for generating the various components of a Bitcoin wallet by hand. Specifically, the components I'm interested in are: Private Key Public Key Public Key Hash ...
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1answer
661 views

Different address prefixes for different address types / network combinations

I'm working on a bitcoin project, and understand the differences between the wallet address which start with 1, 3, or bc1. I am looking to generate a wallet address that starts with 1. I have seen the ...
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how do bitcoin nodes detect a transaction?

I have a number of question about bitcoin but I was ask to do specific research on two questions and I figured this would be a good place to start. The first I have answered already the second is: &...
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Destination address/transaction keeps switching

So, a few weeks ago I sent a BTC transaction out of my atomic wallet with stupidly low fee. Realised my mistake and have been been waiting on it dropping out since. Finally showed back in my wallet so ...
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Safe way to create a mnemonic and address in golang

I have been looking over internet in the different repos of btcsuite but had no luck in finding a way to generate a 12 word mnemonic and convert this to an address using the go language. It needs also ...
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Is https://wincoindc.com is a scam website? [duplicate]

I was scammed by https://wincoindc.com. One of whatsapp user from China asked me for investment on CDC coin in wincoindc.com wallet. So I sent her BTC and she gave other coin in wincoindc.com wallet. ...
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Generating Multiple Addresses

Most wallets these days generate a set number of addresses when you create the wallet. For example, Electrum creates 30. But what if you need more? I know from talking to a LOT of people that there is ...
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1answer
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If Cryptocurrency offers anonymity, why is it considered by forensic professionals to be the best currency for fighting illicit transactions?

A paper by titled An Analysis of Bitcoin’s Use in Illicit Finance discusses how Cryptocurrency is considered by forensic professionals to be the best currency for fighting illicit transactions. In ...
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1answer
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Nbitcoin's BitcoinPubKeyAddress not recognizing native segwit addresses

I'm trying to build a transaction using Nbitcoin. When I run this line there is an error parsing the address. It runs fine with segwit addresses starting with a 1, but not native segwit. Using System; ...
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1answer
60 views

Libbitcoin How to generate addresses on demand from xpub?

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 ...
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1answer
181 views

Bitcoin-qt getnewaddress returns address starting with 2

I am expecting it starts with '3' the the results below: getnewaddress "" "p2sh-segwit" 2NFcKJTPZs1syYhwaBkXty6Vt6FEKxD3HTC Is this because I am running on a private block chain?
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1answer
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BTC on blockchain

I see my Wallet address on the Blockchain but it says spent and what does that mean? It did not arrive to the wallet i sent it too! I need it to be located and returned or sent to the wallet i gave.
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1answer
218 views

How to extract all info for a public address from a local full node's db?

I recently started running bitcoind on a local Debian host, and I am still learning how to use the information in the local copy of the bitcoin blockchain. I would like to extract all the information ...
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1answer
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Address reuse, cold storage and private keys [duplicate]

I was going through some old posts regarding address reuse and came across a few remarks I wasn't aware of, and want to make sure I understood correctly. I knew address reuse wasn't the best for ...
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Can i still use the old address to recieve Bitcoin with Bitcoin.com Wallet

I tried Cloud Minning recently And I use Bitcoin.com Wallet to register bitcoinonlinepool.com, today I accidentally press the change address button, will my account still able to recieve Bitcoin? Btw, ...
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How are Electrum addresses connected to my private key?

I've started using Electrum and created my first wallet. I saved the private key seed on a piece of paper. I also created a new address by going to the Receive tab and clicking "New Address"....
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What prevent someone to not use the receiver address of one transaction as the sender in another one?

Title may be confusing you, and to be honest I am also confused how things work and I am new to this crypto world so sorry in advance if I am not using the correct words. I try to explain : Let say ...

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