Skip to main content
Share Your Experience: Take the 2024 Developer Survey

Questions tagged [wallet]

A wallet manages a user's private keys. Wallet software is used to send and receive Bitcoin. It also keeps track of the user's transactions, addresses, and balance.

Filter by
Sorted by
Tagged with
9 votes
1 answer
774 views

Best way to safely host a high volume online transactional wallet?

I am looking at starting a business that will send and receive a large amount Bitcoins in a semi automated manner using API's. I was wondering what is the best way to do do this in a secure way to ...
malbec's user avatar
  • 91
4 votes
3 answers
3k views

How are popular bitcoin wallets implemented? [closed]

How are popular online bitcoin wallets, like blockchaininfo's implemented? Why aren't they open-source?
Kinnard Hockenhull's user avatar
4 votes
1 answer
621 views

How big can a wallet get?

Say for an exchange that manages thousands of users, and each transaction needs a new receiving address, how much space would thier wallet(s) take. I am assuming 100000 users and each user would ...
Jus12's user avatar
  • 1,365
0 votes
2 answers
497 views

Losing bitcoins [duplicate]

Possible Duplicate: What could be the consequences of many bitcoins being lost out of circulation if people lose their wallets? So I am trying to comprehend this Bitcoins system so please bare ...
Jonah Sabean's user avatar
14 votes
1 answer
9k views

How does the wallet work, online and offline?

I've been reading about bitcoins and I've come across a few questions: How does the wallet actually work? From what I can gather, I use the wallet as a centralized service to store recieved coins, ...
Gary's user avatar
  • 143
25 votes
1 answer
16k views

How secure is blockchain.info?

How secure is using a wallet on blockchain.info? How do you evaluate the different sites that provide wallets?
B Seven's user avatar
  • 861
10 votes
6 answers
4k views

How can I split my bitcoin wallet?

Let's say I have 10 bitcoins. I won't be using 8 of them any time soon. How can I put the 8 in a separate "offline" wallet not related to the bitcoin client? This would be a good security measure. If ...
BitcoinButter's user avatar
4 votes
1 answer
1k views

Can I reuse blockchain/index files with multiple wallets?

With the bitcoin-qt client, I'd like to have multiple wallets use a single set of blockchain data files. Why? Downloading a fresh copy of the blockchain can take days, and each copy of the blockchain ...
tooManyWalletsToCount's user avatar
4 votes
2 answers
2k views

Is there a way to access my BItcoins before Bitcoin qt syncs?

I used QT to generate an address, and have received some coins, but they're not showing up because it hasn't synced yet. It looks like syncing will take 2 days. Can I access the coins before then? ...
Edmund's user avatar
  • 41
1 vote
1 answer
293 views

What to save in a wallet?

I am programming a specialty wallet software. I am able to generate a EC_key and valid bitcoin addresses. I am not sure what to save to a wallet file in order to recover the EC_key in the future. Must ...
Anon21's user avatar
  • 179
2 votes
2 answers
535 views

Mac OS 10.7.5 compatible with Bitcoin-Qt.app?

Program runs but doesn't seem to be able to synchronize with network. Is there more to installing program than just dragging into applications folder? I'm also confused about why I don't have a ...
Regan's user avatar
  • 21
-1 votes
2 answers
13k views

I cannot send bitcoins from my block chain wallet because I don't have the private key. Where is it located?

I didn't create a private key for my bitcoin address and am unable to do anything with these coins. How do I resolve this issue?
susan's user avatar
  • 15
19 votes
1 answer
2k views

What is the status of hierarchical deterministic wallets (BIP32)

BIP32 specifies hierarchical deterministic wallets, where a master seed fully determines a whole tree of keypairs that can be arbitrarily branched. It also introduces the notions of internal and ...
Noah's user avatar
  • 1,479
2 votes
2 answers
3k views

Is it possible to earn BTC by processing transactions?

Where does the money go? Is it possible for any person to setup his wallet application to process transactions and make some more BTC?
Andrei0427's user avatar
8 votes
2 answers
2k views

How many addresses can be handled reliable in one wallet?

I am working on a project which may end up generating a few hundred (or even more) bitcoin addresses a day. From my understanding in theory there is no limit on the number of bitcoin addresses in a ...
TripleSpeeder's user avatar
5 votes
5 answers
21k views

My client stopped synchronizing, how can I access my wallet?

My wallet has been stuck synchronizing for 21 days, my transfer is in the block chain but I can't get it to sync with my wallet. I've closed firewalls, uninstalled and reinstalled QT with back up and ...
Glenn's user avatar
  • 51
8 votes
2 answers
5k views

Can wallets be shared by different machines?

I have a bitcoin client installed on machine one. Let's say it has 5 coins in there. I then have another machine, with another client on it. Can both machines see the same wallet? Do I have to have a ...
Andrew's user avatar
  • 81
3 votes
1 answer
1k views

Which software can I use to setup an e-wallet site?

I am relatively new to Bitcoin and I have a very simple question: what wallet software is behind "online wallet sites" like http://www.blockchain.info? I would like to set up a mini-site to store my/...
flaab's user avatar
  • 854
2 votes
2 answers
306 views

Receiving dollars directly into bitcoin wallet?

Is there a way that I can set up my account to have my customers pay for services rendered in dollars directly into my bitcoin account via an online electronic funds transfer from their bank account?
srqjim's user avatar
  • 21
-1 votes
1 answer
166 views

iPhone app for bitcoin [closed]

What does BitCoin suggested is the best App for iPhone?
William Carpenter's user avatar
3 votes
2 answers
9k views

How do I "Verify my wallet" [closed]

I'm completely new to the BitCoin world and I've purchased a couple of coins through eBay. The seller has messaged me saying this: "Donation sent to 1Nf9iW******Yx4cPKB ...Please verify wallet and ...
Mark's user avatar
  • 31
4 votes
2 answers
812 views

Is there a point to vanity addresses if a new destination address should be created per sender?

There is some advice for merchants to have a unique Bitcoin address for each incoming address. Apparently this will help associate a transaction with a sender. Since it can take a long time to ...
makerofthings7's user avatar
3 votes
1 answer
1k views

Where can I store a Bitcoin Wallet Safely?

I am a newbie and I would like to know where can I create/store my Bitcoin Wallet safely. I have downloaded the Bitcoin software but storing it in my local computer seem like a high risk, but also is ...
flaab's user avatar
  • 854
5 votes
1 answer
747 views

What technology will supersede the BerkleyDB format? What are the current scalability limitations?

How scalable is the BerkleyDB format (the technology used within a wallet), and what are its limitations? What technology would replace or supplement BerkleyDB to address those scalability challenges?...
makerofthings7's user avatar
5 votes
1 answer
375 views

How does Blockviewer work? (tool to discover identities of "anonymous" bitcoin transactions)

I'm trying to follow the logical sequence of how Blockviewer works and only see this one blog entry for the process, but no "part 2". Can someone describe the techniques to link a wallet address to ...
makerofthings7's user avatar
4 votes
2 answers
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 ...
Mike Smith's user avatar
5 votes
1 answer
674 views

How can one use multi signature transactions/addresses to improve the security of their services?

Multi signature transactions and addresses are heralded to be a good way to improve security of various Bitcoin services. However, how should one go about using them in order to achieve that goal? For ...
ThePiachu's user avatar
  • 43.1k
1 vote
1 answer
161 views

What are the specific interactions between a Wallet client/node and a Miner?

I'm researching the interactions between a Wallet and a Miner. Although I'm also interested in the high level sequence of operations, I'm also interested in discovering the protocol and verbs used in ...
makerofthings7's user avatar
2 votes
1 answer
332 views

What ways does a miner differ from a wallet?

I'm trying to understand how transactions are broadcast, the time is synchronized, and the chain extended. I have a wallet on OSX that required me to fully synchronize with the network. Contrasting ...
makerofthings7's user avatar
7 votes
2 answers
3k views

Sharing a wallet with a friend

How can I share my bitcoin wallet with my family members? Such that if my grandmother spends one btc one day, I see that reflected on my computer, etc. This is also a great safety mechanism, in case ...
BitcoinButter's user avatar
6 votes
1 answer
654 views

Is there a standard wallet format?

Is there a standard wallet format that can be read with different bitcoin clients, and that is likely to be compatible to future bitcoin clients as well and thus is usable for long term storage of ...
Dr. Hans-Peter Störr's user avatar
2 votes
0 answers
287 views

Is there a way to import a private key already protected with the passphrase?

Let's say I have a hot wallet that has passphrase encryption enabled. Then let's say a large withdrawal needs to occur but the hot wallet has insufficient funds and a transfer from cold storage is ...
Stephen Gornick's user avatar
7 votes
3 answers
10k views

How can I export all my private keys using bitcoind?

I know that PyWallet has a -dumpwallet but without using pywallet, how can I export all the addresses and privatekeys with the stock bitcoind? Is there an API command that lists all addresses held by ...
Stephen Gornick's user avatar
5 votes
1 answer
216 views

Does blockchain.info backup wallet include also the next addresses

The standard client's wallet includes a key pool of 100 extra pre-generated addresses, which are the next ones to be "generated" when you ask an extra address. Does the blockchain.info's backup ...
o0'.'s user avatar
  • 5,240
8 votes
3 answers
1k views

Is there a limit to how long a wallet can be offline?

I have a wallet file I backed up June 2011, and has been offline for over a year now. When I copied it back into where the files are stored with the official client, it says my balance is 0, with no ...
jessicah's user avatar
  • 301
12 votes
2 answers
53k views

If I've lost my wallet, but know my bitcoin receiving address, can I get my bitcoins back?

Although I do have a backed up wallet file, I seem to also have a second bitcoin receiving address, which doesn't seem to correspond to it. Is there a way to recover any coins associated with that ...
jessicah's user avatar
  • 301
3 votes
1 answer
1k views

Backing up my Bitcoin wallet

I'm really new to Bitcoin (just started today) so forgive me if this question has been asked before but I can't seem to find an answer on Google. From what I understand, the Bitcoin program is capable ...
Dr Coconut's user avatar
4 votes
1 answer
749 views

How do I calculate what the TOTAL Wallet fees are going to be with Bitcoin-Qt v0.6.3?

The new release of BitcoinQt Wallet v0.6.3 looks much better but I still can't find out how much the total fees are to send coins. My wallet has 0.52390169 BTC and I tried to spend it and got the ...
RobbieMor's user avatar
7 votes
2 answers
2k views

Why don't addresses in an (unencrypted) wallet.dat file seem to match addresses that would be generated by the private keys in the wallet?

I've been messing around with an empty wallet file using the 'pywallet' utility, and have come across something I can't understand. A dump of the unencrypted wallet readily reveals a list containing ...
AFineTransform's user avatar
1 vote
1 answer
500 views

Mining and Bitcoin Wallet [closed]

I have been mining for over 24 hours @ 97.3 Mhash/s. Shouldn't I have at least obtained .01 bitcoin by now? How do I verify the mining that I am doing is transferring into my Wallet?
Sigwo's user avatar
  • 19
2 votes
0 answers
268 views

Is anyone working on / has implemented a "two-factor paper wallet"?

I just created this wiki page. I'm coining the term here, I think ... not sure what was it called when discussed on Bitcointalk. My question is: Has anyone implemented this "2 factor paper wallet"? ...
ripper234's user avatar
  • 26.6k
8 votes
2 answers
14k views

What exactly happens when a new wallet is created?

I am asking for what is being created when there is a new wallet created. And the second part of my question is considering public key. Is the public key the same thing as the address? I read that ...
Comodore's user avatar
  • 568
4 votes
4 answers
8k views

What's the best Android wallet client for bitcoin?

There are many bitcoin wallet clients on android market. What is the best considering security, interoperability and usability?
fccoelho's user avatar
  • 211
1 vote
1 answer
1k views

How can I retrieve my bitcoins when the client crashes as soon as it begins synchronizing

As soon as the client begins synchronizing it crashes. It's stuck at 139,500 blocks left. I am brand new to bitcoin and sent $300 to an address on this client.
Susan McDoyle's user avatar
2 votes
1 answer
321 views

My wallet won't load because it says it contained a duplicate transaction. Are my coins lost forever or can i load it some other way?

Question pretty much says my dilemma. Wallet won't load due to a "duplicate transaction" which I thought could not happen. I use multibit btw, if that helps. Please tell me I can load my wallet ...
Fernando's user avatar
9 votes
1 answer
629 views

Importprivkey's "label" - is it the same as an account?

The "importprivkey" API call allows one to import a private key and save it with a label. Is the "label" in the API call synonymous with an account used in the wallet?
ThePiachu's user avatar
  • 43.1k
2 votes
1 answer
736 views

Downloading of blockchain failed

I’ve been attempting to set up my own wallet, but am having difficulties. Last week I began installing the standard Bitcoin client. When I first attempted I got to the process of downloading the ...
Dave's user avatar
  • 41
15 votes
1 answer
8k views

How does bitcoind generate a new address if the wallet is encrypted

Suppose that my wallet is encrypted with a passphase and currently I have not provided bitcoind with the passphrase to access the private keys section of the wallet. If I enter: bitcoind ...
Sam's user avatar
  • 151
2 votes
2 answers
1k views

New User, New Wallet

I recently purchased some bitcoins, which were sent via coinapult to my cell phone. I received a text for the amount with a link to an online wallet (apparently not a true wallet but just an account ...
Dave's user avatar
  • 41
2 votes
1 answer
478 views

What is the file wallet.dat.rewrite?

In my %APPDATA%\Bitcoin folder (in Windows 7) I have a file called wallet.dat.rewrite It was apparently last modified on 12th May 2011. I don't think it's a file I created manually, so what is it?
Highly Irregular's user avatar