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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1answer
211 views

How do I get a vanity address from a hierarchal deterministic wallet?

I'm interested in finding different techniques that can be used to create vanity addresses with a BIP32 address. For example, can any of this computation be offloaded to a dedicated server, or a 3rd ...
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1answer
477 views

Where is the bitcoin automatic address generation?

I have head of the automatic bitcoin address generation feature for every transaction. I have done multiple transaction, but I still have the same addresses (I have two addresses). I would like to ...
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1answer
3k views

How balances are calculated?

Is it the case that the blockchain has information on the balance associated with each public key-address, such that the client on my PC, say, will look at every public/private keys pair in wallet.dat,...
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2answers
407 views

Command line address calculator?

I'm looking for a command line address calculator, where I can put in my private exponent and get out a bitcoin address in Base-58 encode. Does anyone know some free software that will allow me to do ...
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1answer
382 views

Bitcoin Core 0.13 How many addresses it can **effectively** manage?

I want to know, what's the maximum amount of addresses that Bitcoin Core 0.13 can manage? All addresses should belong to the default account. I want to use walletnotify feature How startup time ...
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3answers
163 views

Are generated public/private keypair the most random possible?

The number of possible Bitcoin private/public keypair is very strong (2^160 which is 1,461501637×10⁴⁸). However, if the random generator is not good enough, only a subset of all that "space" could be ...
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2answers
12k views

Transfering Money From My Bank Account To Bitcoin? [duplicate]

Im quite confused about this bitcoin software/system. I have successfully sync'd to the network (took hours) and have recieved my address. Now, if someone is selling something for 5Bitcoins. What is ...
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2answers
416 views

Decentralized democratic voting [duplicate]

Has the fundamental problem in cryptovoting, one person, one vote, in a completely decentralized or blockchain centric manner been solved? In other words, how can votes be allocated in a ...
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4answers
801 views

Coins sent to unknown address in Multibit

Premise: I'm quite new to all this bitcoin thing. After experiencing some problem with a bitcoin transaction, I made few attempts with small quantities (0,0001). In particular, I've sent 0,0001 to ...
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4answers
3k views

How does a wallet get the public key from an address?

I was under the impression that addresses are just an encoded, hashed public keys with a prefix and that only the public key is used on the blockchain (not the address) for transactions. But if the ...
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2answers
563 views

How safe is bitcoin with regard to a random address generation attack? [duplicate]

Imagine an attacker implementing something like the following pseudocode on the fastest ASIC farm money can buy: attack(blockchain, my_address) addresses = generate_tree_of_all_nonempty_addresses(...
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3answers
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ECDSA x,y coordinate validity verification doesn't seem to work

The ECDSA algorithm, secp256k1 for Bitcoin allegedly uses the equation y ^ 2 = x ^ 3 + 7 mod P to determine the validity of an alleged point upon the elliptical curve. Utilizing http://web2.0calc....
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1answer
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What is the maximum of receive addresses the default wallet can handle?

I guess there is no limit. But on tests, what is the maximum before the bitcoind start to slow down in a specific machine?
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2answers
826 views

How can someone lose funds in Lightning Network?

In Bitcoin once you own a private key associated with an address that has bitcoins on it, your funds are theoretically safe forever. But on the Lightning Network, I see that once you send bitcoin to ...
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2answers
8k views

list of addresses for major bitcoin exchanges

Is there a list available of the addresses for the aggregating wallets of major bitcoin exchanges? If so, where?
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Should you protect your Bitcoin address like your credit card number?

Today, I recieved this scam email: We have reached the biggest milestone in our history – over a million wallets. https://[removed] will celebrate with some big prizes. In October 2013, ...
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943 views

Using a new address for every transaction?

I've been reading the Developer Guide, and they seem to be really strong on the idea of using new addresses for every transaction. I understand the reasoning - anonymity - but I don't really ...
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3answers
4k views

createrawtransaction, multiple outputs, single input?

following the manual on https://bitcointalk.org/index.php?topic=101525.0 , i would like to merge multiple fractions of BTC from multiple addresses i own, to another single address i own(reassemble, ...
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3answers
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How do I know my wallet.dat actually already contains 100+ addresses ready to be used?

I'm using the standard commandline client (under OSX, in case this matters). I've read in some threads that it is smart enough to pregenerate 100+ addresses to be used in future when you ask them, so ...
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1answer
150 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
271 views

API for large number of queries to different addresses every few minutes

I have an application that needs to makes queries to get address balances and transaction data from Bitcoin. What are some possible solutions to this? It would be great if I didn't have to manage a ...
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5answers
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As a small hotel accepting bitcoins, do I show only one payment address?

I am currently accepting bitcoins as payment at my hotel, but I am uncertain about the payment address(es). I prefer to avoid payment service such as BitPay and Coinbase to mention a few. At this ...
3
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1answer
317 views

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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1answer
862 views

Lookup Full Address For Casascius Coins

Can anyone tell me how I would check the public address on my old Casascius Bitcoins? I have 3 total cons but I am unable to find where or how to check the public addresses on the coins for they only ...
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3answers
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Determining if input is a block ID, transaction ID, or address

how do sites like https://blockexplorer.com determine if the input (see inputbox in the header of https://blockexplorer.com ) is an address, transaction ID or block ID? I want to write something ...
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3answers
285 views

What can be changed in signed bitcoin transaction?

What can be changed in signed bitcoin transaction? I mean how is possible to modify transaction to change its hash, but keep transaction valid, without need to have sign private keys?
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1answer
5k views

Sending bitcoins to same address

I am using the BitcoinJ API to create my wallet. When I create a transaction, I provide the change address to which change should be sent. For example: let there be 1 bitcoin at address A; then I ...
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4answers
2k views

Is it possible to generate a complete public address with vanitygen?

FAQ says it's possible to use vanitygen to search for a match to a complete address yet when I input a complete address I get an "is too long" error message. Is there a way to run vanitygen using a ...
3
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1answer
102 views

At what rate are new addresses appearing in the blockchain?

How many new addresses are the recipient of transactions hourly? daily? weekly? monthly? I understand that this is always changing, so bonus points if you can provide code to calculate it!
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1answer
258 views

Is it a bad idea to use a bitcoin wallet address in a domain name or URL?

Aside from it forever being public and kind of marrying a business to a wallet.
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2answers
878 views

Does the public key associated with an address become part of the public record after it has been used to spend?

Since bitcoin addresses are hashes of public keys and not public keys as such, if one wanted to craft a message that could be decrypted by the generator of an address, that can't be done just with an ...
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1answer
1k views

Linking a transaction to a Bitcoin user

Has anyone tried and perhaps succeeded at linking a transaction to a possibly controversial site (such as Wikileaks) to a Bitcoin forum user by their forum signatures? I know a lot of people disclose ...
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1answer
376 views

Confusion about Addresses

I have a little bit confusion about addresses segwit and not segwit. I can see P2WPKH and P2WSH from this link https://en.bitcoin.it/wiki/BIP_0173, and they are segwit and start with bc (mainnet) or ...
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Identifying the type of wallet that's being used?

Is there any way to identify what type of a wallet a Bitcoin address is associated with? For example, if you created an address via Blockchain.info, would anyone know it was created through them or ...
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1answer
1k views

What's going on with address 1NZ9kxxUykiNSe61ZRNPLqWeVHVRnirGry?

Does anyone know what is going on here: https://blockchain.info/address/1NZ9kxxUykiNSe61ZRNPLqWeVHVRnirGry As far as I can tell, it looks like the "1NZ9..." address seems to be one one of those ...
3
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1answer
11k views

What's the relationship of Bitcoin addresses to public keys?

A Bitcoin wallet can handle multiple private keys. In ECC, you can have 2^256 private keys, and for each key, you can have 2^256 public keys. Assuming that's right (please correct me if I'm wrong), ...
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1answer
643 views

Why doesn't directory.io list addresses starting with 3?

Why doesn't directory.io list addresses starting with 3? I have no idea why it is so.
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2answers
3k views

Donation wallet address

I read that wallet/account is not the same as bitcoin address. The address can be used only for single transaction. How do you receive donations on your address? Are wallet addresses unique for the ...
3
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1answer
764 views

Do electrum fully support Hierarchical Deterministic Wallets?

I'm curious if electrum fully support Hierarchical Deterministic Wallets (BIP32). I have seen in source code that some part of implementation is done. But there are also as I think some electrum ...
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3answers
3k views

How do I own my bitcoin address?

I am a bit new to BTC. I bought few via Virwox and it tells me I have an address. People can send money in BTC to that address. I also downloaded MultiBit on my Mac and I got another address. But ...
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2answers
4k views

Random Bitcoin address generation

From https://en.bitcoin.it/wiki/Address: A Bitcoin address, or simply address, is an identifier of 27-34 alphanumeric characters, beginning with the number 1 or 3, that represents a possible ...
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1answer
543 views

How do I disable automatic address generation for the official bitcoin client?

This question was asked before over at bitcointalk.org over here way back in June '11. The answer back then was a resounding no. Is this still the case? My wallet.dat keeps growing bigger after every ...
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1answer
188 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 ...
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1answer
2k views

How to generate a native Segwit address and P2SH Segwit address from a standard WIF?

Can I have the steps to generate a native Segwit address from a standard WIF? And the steps to generate a P2SH Segwit address from the same WIF? How do these two formats differ and why are there two?...
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2answers
62 views

Querying UTXOs with random key pairs

As the number of transactions in the bitcoin network grows, the number of addresses with bitcoin will also grow. Is it possible for someone to “scavenge” for bitcoin by generating random key pairs and ...
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2answers
4k views

Is this how to generate a bitcoin address with python?

So I have already the public key. My question is if I'm applying correctly the b58 encoding, since bitcoin uses b58check, and also adds x00 prefix. Can somebody explain me that? Thanks. import ...
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2answers
692 views

How does a wallet come to know of Address just by importing Private key?

I have exported my Private key to Paper Wallet. Now, when we send/receive bitcoins, we send/receive them to an "Address". So suppose I receive some bitcoins on my address. I have the private key of ...
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1answer
214 views

Is there any way to “revoke” a bitcoin address?

Given e.g. one lost the private key to a specific bitcoin address, is there any way to make sure no more bitcoins can be transferred to it since it effectively became a bitcoin-furnace?
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1answer
2k views

How is an address beginning with a 3 valid?

The Bitcoin Dark Wallet project is accepting donations to address 32wRDBezxnazSBxMrMqLWqD1ajwEqnDnMc. How is this a valid address? I thought that all Bitcoin public addresses start with 1.
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1answer
333 views

Do all private keys that are resolved to the same address give access to the bitcoins on this address?

The algorithm to get the public key and the address from a private key consists of a few steps. Which of the intermediate keys is used to sign transactions with? Ultimately, there can exist two ...

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