The hash of an ECDSA key-pair's public component. Knowledge of this value allows a user to send Bitcoins to another person over the network.
3
votes
1answer
56 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.
0
votes
1answer
21 views
Blockchain.info: Which address should I give for “New Shared Address”?
I am new to Blockchain.info's wallet's features.
I clicked the "Receive Money" tab, then clicked "Shared" and then the green button labeled "New Shared Address". It gave me the following:
Address ...
2
votes
2answers
103 views
How untraceable is Bitcoin?
Are Bitcoins truly untraceable?
For example:
I want to buy Bitcoins with a Credit Card (e.g. through VirWoX) then I transfer them to a bitcoins address.
After that I send them to some service like ...
0
votes
1answer
100 views
What happens if Bitcoins are sent to a wrong, randomly generated address?
I am new to Bitcoin and I confused creating a New Address for receiving and sending payments.
Here's what I did:
Generated a random Bitcoin Address (using www.bitaddress.org)
Created a New Address ...
0
votes
0answers
42 views
Is anyone developing a DNS-like system for Bitcoin addresses?
It seems like mainstream access would be easier if there was a more human readable system for bitcoin addresses. No one has to remember IP addresses, we have servers with databases for that.
What ...
4
votes
1answer
76 views
Send coins from another adress
Newbie here!
I need to confirm something:
I have bought bitcoins and I already see them in the QT client I am using.
I now want to send the bitcoins using a different address than the one I use to ...
1
vote
1answer
39 views
Why vout->addresses in getrawtransaction is a table
I am reviewing Bitcoin transaction data as are returned by 'getrawtransaction' bitcoind command. I wonder why field: vout->addresses is a table and why it allows more than one address to be associated ...
1
vote
1answer
115 views
Is vanitygen a problem for bitcoin?
Considering the amount of users of vanitygen, and the fact that each user is generating millions/billions of bitcoin addresses, won't we run out of bitcoin addresses soon? What would happen if we did ...
3
votes
1answer
80 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 ...
0
votes
2answers
82 views
Reserved Bitcoin address for examples?
Is there a reserved Bitcoin address?
It should not be able to send bitcoins to it. But the address should be syntactically valid.
Such an address could be used for examples/documentation, without ...
0
votes
1answer
60 views
Support sending bitcoins to webpage URL?
Are there any Bitcoin clients or services that support sending bitcoins to a HTTP(S) URL instead of having to enter a Bitcoin address directly? (e.g. for donations)
Webmasters could include their ...
1
vote
1answer
108 views
Generate address (for receiving) on GNU/Linux without Bitcoin client?
If I understand it correctly, I could generate a valid Bitcoin address (key pair) following this algorithm.
With an address generated in such a way I would be able to receive Bitcoin without ever ...
0
votes
1answer
73 views
Upcoming Fork - Wallet Safety [duplicate]
In downloading the newer client, do I need to worry about my addresses and hence bitcoins disappearing, or will everything in the old wallet transfer nicely into the new?
3
votes
3answers
931 views
How to pre-generate 100M bitcoin addresses?
What is the best method to generate large numbers of bitcoin addresses?
I imagine something like the following would break bitcoind in some fashion:
./bitcoind keypool=100000000
0
votes
1answer
301 views
How do I get my funds from bitstamp into my wallet?
Hi I am using multibit as my bitcoin wallet. I will be using money gram to put money into my account. I dont know how to buy bitcoins for myself.
On multibit it says you can send coins to someone ...
2
votes
2answers
292 views
How to move an address to a new wallet?
I have a wallet with several addresses. I would like to isolate one of the addresses in its own wallet, but I don't know how to do it. I've been trying with pywallet.py, but I've been unable to do it.
...
1
vote
1answer
140 views
Why does Bitcoin-Qt not launch the program, on Mac
I can't believe that I have lost my Bitcoin Wallet just because I clicked on the red spot on the window of it on my Mac. Or was this enough to loose it???
I think I have the address (does it start ...
0
votes
1answer
573 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 ...
3
votes
1answer
74 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 ...
1
vote
2answers
47 views
Restricting a wallet to a specific destination address
I have an idea for a tool I'd like to build, but first I need to understand the Bitcoin protocol a little better.
Is there any way, hypothetically, to ensure that a given wallet or address can only ...
3
votes
1answer
135 views
Is there a self contained C/C++ code snippet out there to validate a Bitcoin public address?
I tried looking through the Satoshi Client to grab the necessary code. It ended up being too difficult for me as my expertise is not in C or C variants. And the fact that the code use boost made it ...
3
votes
4answers
216 views
What if I create a new address and I'm given one which clashes (already exists, it is being used by other user)
Addresses are like GUIDs, no? They are created randomly whenever you request the creation of a new address.
But what if when creating one, it clashes with one already created? I know that the ...
2
votes
2answers
75 views
When will the public key of an address used in the network?
On block explorer there are some address with public key available, and some without.
(e.g. this one has public key:
http://blockexplorer.com/address/1HBheYzvX7NDtcwVrMS7gxReNRVezYS7w2 ,
and this ...
2
votes
1answer
173 views
Can the same wallet be run from multiple computers
How can i personally utilize many of my home and office computers to mine bitcoin for the same address or user? Does bitcoin allow that? Also if i have supercomputing facilities does it mean i can ...
2
votes
2answers
119 views
Why do all addresses begin with “1”? Why can't we just delete it?
The title is the question :)
All the addresses I have seen - from the very first block http://blockexplorer.com/b/0 to the very last one http://blockexplorer.com/b/229850 all begin with "1".
Why is ...
2
votes
2answers
190 views
Why does Bitcoin use two hash functions (SHA-256 and RIPEMD-160) to create an address?
Why do we use 2 hash functions (both SHA and RIPEMD) to create an address? Why not just use one hash function?
1
vote
2answers
138 views
Compute the balance of every address
As I understand, when Bitcoins are created the beneficiary's Bitcoin address is made public. Likewise, when Bitcoins are transfered, both the source and destination Bitcoin addresses are made public.
...
2
votes
2answers
172 views
How to get all addresses - including the “change” addresses - from bitcoind?
I want to get all my addresses - including the auto-generated "change" addresses - from a running bitcoind somehow.
I haven't been able to do it in a simple way. "getaddressesbyaccount" and all the ...
0
votes
1answer
21 views
Source code: Where is address encoding performed?
I would like to experiment with having fewer characters (trimming a few characters at the end, and fewer checksum) for an address while still retaining enough for adequate security.
I've looked into ...
1
vote
1answer
86 views
How to update balance of imported address in electrum
Imported an address into electrum, but the balance of the address shows up as zero.
Checked the address on http://blockexplorer.com and it's not zero.
The address was imported from bitcoinqt when ...
4
votes
1answer
63 views
Bitcoin Address Wiki Issue
I'm having issues following through the technical wiki here - https://en.bitcoin.it/wiki/Technical_background_of_Bitcoin_addresses
Point 2 says to perform a SHA256 hash on the public key, which I'm ...
3
votes
1answer
84 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 ...
5
votes
2answers
235 views
Is Each Bitcoin Address Unique?
I am wondering whether each bitcoin address is unique. I would assume yes. Then how is this enforced (distributed address generation).
As I understand it each time an address is generated a new ...
4
votes
1answer
545 views
If SHA256 and/or RIPEMD-160 were broken, would all bitcoin addresses be compromised?
If not, what else would be needed to steal all funds from all people and completely break bitcoin?
I bet some will say ECSDA gives bitcoin an additional layer of protection. I counter this by saying ...
2
votes
1answer
205 views
Do I need to move bitcoins stored in a paper wallet?
In mid 2012 I used bitaddress.org offline to generate address/private key pairs. I purchased bitcoins and had coins sent to these addresses. Do I have to move these bitcoins to keep them in the active ...
1
vote
1answer
104 views
If addresses are hashes of public keys, how are signatures verified?
I've skimmed through the https://en.bitcoin.it/wiki/Protocol_specification and it seems that when sending someone bitcoins, I would sign the transaction data (not quite sure which parts exactly) with ...
2
votes
1answer
185 views
Is it possible to create an address from a predefined private key?
I was not sure how to formulate the question title. What I want to achieve is the same as VanityGen and many other tools do to create an address starting with a predefined part, but with private keys.
...
1
vote
1answer
136 views
How do I reverse a transaction?
Ok here is the thing I lost coins on this computer trying to send them to my laptop this is what it said
Status: 0/unconfirmed
Date: 2/6/2013 14:53
To: 1PrM4QW3UtkGhi1uXFjvtDhn3h3x3pMipn
Debit: -3.98
...
1
vote
1answer
107 views
Electrum Error Message “22”
When I try to send BTC from my Electrum wallet address to one of my unused addresses in Electrum, just as a test, it comes up with an error message (U'message':u'TX rejected, U'code':-22).
I'm using ...
5
votes
2answers
106 views
How many different formats can a public address take?
I'm creating an offline index to report off of the block chain. I plan on indexing each transaction based on the address displayed in the TX.
Are all addresses Base58? I believe I also read about ...
3
votes
2answers
162 views
Does the satoshi client always send the change of a transaction to a newely generated address?
Experimentally, this seems to be the case, but is it always like this or depends on some details?
Also, does it generate a new address each time this is done, or first searches the wallet if there is ...
2
votes
5answers
647 views
Can you generate bitcoin addresses without storing a private key?
Suppose you have a possibly compromised system, which you do not trust enough to stores your private keys on.
Is there some process where you can generate unique bitcoin addresses within the system, ...
2
votes
2answers
182 views
How does blockchain.info associate a message with an address? [duplicate]
I randomly encountered this address on blockchain.info: https://blockchain.info/address/1CzpppydnGN5dQN7iBnZbmm5RXreu7hrHW and at the top a message appears presumably describing the owner of the ...
4
votes
1answer
270 views
Why does Bitcoin-Qt use hidden private addresses?
As I found out from this question default wallet contains 100 private keys but only makes one visible.
But what I don't understand is why Bitcoin using those "hidden" addresses? I've been using my ...
4
votes
2answers
294 views
How long does it take for an exchange to send me bitcoins?
I'm not sure I understand all of the bitcoin storage options
I know there are bitcoin addresses and bitcoin wallets
what is the relationship of an address to a wallet? is a wallet mandatory and a ...
4
votes
1answer
335 views
I've downloaded Multibit Bitcoin Client, but I don't know how to view what my wallet address is?
I am attemting to purchase some bitcoins with a cash deposit to my bank using this site: https://www.canadianbitcoins.com/index.php
The site requires me to validate my wallet address so they know ...
3
votes
1answer
116 views
Wallets vs Addresses
I dont understand how a wallet comes into play?
Is a wallet a necessary part of a transaction or is it just a way of collating multiple addresses?
I get how I should use a new address for each ...
2
votes
1answer
223 views
Dumpprivkey or dumpwallet won't show my private key for the address in my wallet
Haven't opened my wallet in a while so it's not in sync with the network. 5400 blocks remaining as I write. The wallet is not encrypted.
Received some bitcoins to my address in this wallet. Now I ...
4
votes
1answer
141 views
What are the transactions included in the merkle root
I am trying to understand the block hashing algorithm used to generate block.
One of the points mentioned here is
it is (nearly) impossible for two people to have the same Merkle root because the ...
3
votes
5answers
1k views
What happens if your bitcoin client generates an address identical to another person's?
Here's a what-if scenario:
Person A has a Bitcoin address with 25BTC.
Person B opens up their Bitcoin client:
which may or may not have the complete blockchain (the latter would
mean no copies of ...
