A database containing the keypairs associated with a user's Bitcoin addresses, a list of transactions related to those addresses and various user preferences and keys.

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Bitcoin - BitGO - Save all wallet objects into Array of Objects

My Setup: With the help of Mongoose module we handle all Mongo Database operations. For each new user a wallet is generated and stored inside a Mongo collection. METHOD: If we use User.find({}, ...
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6 views

In blockchain info: Showing balance zero [on hold]

I have with drawn bitcoins of total 0.00087BTC from my address in freebitco.in to blockchain wallet. But the total amount received showing as 0.00087BTC and total transaction showing as 0.00087BTC. ...
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19 views

Trezor Custom Mnemonic

How do I go about using words I pick in a trezor seed? I only want words that I select and in an order I select. I'm not worried about this being a less secure way to generate a seed. I will be doing ...
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1answer
24 views

Private Brain Key Generation and Public Address Not Matching Java

I am trying to generate a public and private key set from a input string in Java. (Yes I am aware this can be a dangerous practice) I am using bitcoinj for a outside library. I currently have: ...
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24 views

Generate Unique address for each users?

I have PHP Based Web Bitcoin Wallet on localhost. I use simple Login system and basic bitcoin Json-RPC. In fact, everything is runing clearly, but my Bitcoin daemon giving same Bitcoin address to all ...
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21 views

Transaction ID not found- Status still unconfirmed

I tried to make a transaction back to my bitstamp account on 23.02.2016 but it has not been received. the Transaction ID from Bitcoin Core is the following: ...
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6 views

Connect to regnet from my WalletAppKit Android app

everyone. I'm developing a simple app to learn how to use the bitcoinj library. I'm using the WalletAppKit object to simplyfy the process and I'm following the official documentation. When ...
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1answer
28 views

Is it possible to Send the total balance of Bitcoin from the Wallet using rpc without having to specify the exact amount?

I know we can send coins using the move, sendtoaddress and sendfrom commands from the console or commandline. However these commands require to specify an "exact" amount, meaning you need to check ...
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40 views

What can I do with Bitcoin Core to see my current balance?

I've waited 4 days now for Bitcoin Core v0.12.0 to synchronise the network and its getting really frustrating, especially when I still have 2 years and 38 weeks worth of the blockchain to download. ...
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1answer
26 views

How to track bitcoin wallet activity with extended public key?

I recently signed up on blockchain.info and on the manage addresses section I can see my wallet Extended Public Key (xPub). There is a warning message saying: You should only give this Extended ...
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19 views

Basic use of wallets [duplicate]

I have purchased a ledger wallet and browsed exchanges. Nowhere is the process of getting bitcoin stored in the wallet explained. I am not a techhead, so need plain english explanation please!
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1answer
49 views

I can't access my wallet at Bitknock cloud mining anymore [closed]

I was doing mining with Bitknock but they closed the website without informing us. I can't access my wallet. Here is my wallet address fnwg643zjnfwsqks What must I do now? Should I acknowledge ...
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1answer
53 views

Transaction ID not found- Status still unconfirmed after a month?

I did a transaction back to my bitstamp account on 23.02.2016 but it has not been received. Transaction ID: 1886e0c49ba43a842043fc84358a05d3faf69468c1547e1d2ef3e030b929f834 I do have the blockchain ...
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1answer
51 views

ZebPay - Direct sell from wallet

I want to use ZebPay since I am from India but this question is applicable to all Bitcoin waletts like CoinBase. Can I sell directly from my wallet ? For example if I have 1 BTC in my wallet can I ...
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1answer
34 views

Connecting Genesis Mining to a bitcoin wallet

I am a noob to bitcoin and want to know a few things-: I saw the Genesis Mining pricing here. Now my question is that if I use cloud mining can I transfer that amount to my Bitcoin wallet ? Like ...
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71 views

help my Bitcoin core wallet won't sync

more Bitcoin core won't synchronize with network but my wallet has a balance of 0.00 it I have done transactions that reply back as true and if I do balance for those addresses it shows transactions ...
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1answer
38 views

How to copy wallet.dat from v0.10.2.0 to v0.11.0.

I am trying to import the balance from the older version to the newer one. I deleted the wallet.dat from the newer one and copied the older one into its place. However, the wallet will not start with ...
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39 views

Lost Bitcoin Wallet. Need Help NOW!

I know this is bad... I lost my bitcoin wallet. But not in the way most other people lost it. I know my Bitcoin Address and my Password but have no clue what wallet I was using! I used to mine Bitcoin ...
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1answer
42 views

BitCoin Core Error Message: “Assertion failed!”

I am experiencing a recurring problem with my BitCoin Core wallet. The main issue here is that I get an error message every so often as the program is updating the transaction blocks. Please see the ...
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1answer
35 views

Ruby: How do I create a wallet and import an electrum seed using money-tree gem

I am looking for a way to use HD wallets with ruby. This is what I have found: https://github.com/GemHQ/money-tree. However I am having trouble generating a wallet and getting the seed to reload it in ...
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5 views

Transaction outputs [duplicate]

When I have a wallet with 3 addresses addr A: 2 BTC addr B: 3 BTC addr C: 4 BTC and I have to send someone 6.5 BTC Will the wallet use addr B+C as output for a new tx or does a wallet always use ...
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45 views

How can I add an old Bitcoin Wallet address from Bitcoin Core to MultiBit HD?

I have a wallet with Bitcoin Core. I have put that address for various sites to receive payments from them. I want to add that address to my account on my MultiBit HD program so it will just carry ...
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2answers
172 views

Can a clever hacker still steal everyone's money from the blockchain.info wallet?

Blockchain.info claims: We cannot (and don't want to): View your balance View your address book Make transactions on your behalf Confiscate your wallet Lock you into our service. ...
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1answer
27 views

Generating Bitcoin Public and Private Keys

I managed to write the below code which will create public and private keys Private Key $input = "satoshinakamoto"; $sha256 = hash("sha256", ($input)); echo "<strong>Private Key: ...
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33 views

Bitcoin Key Pair Algorithm

I tried Google'ing for hours to find out the exact algorithm to convert a string to Bitcoin Wallet Key Pair and couldn't find any working algorithm. I tried something like $public_key = ...
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29 views

How can I automate bitcoin sending?

I need a wallet which supports the ability to send payments to other wallets through some sort of rest API / URL's, anyone got any info? Thanks!
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21 views

Wondering if this wallet feature exists

I've been wondering is it possible for a wallet to have some sort of rest API I could call in order to send funds to another bitcoin wallet of my choice. for example ...
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1answer
31 views

Other server wallets than bitcoind recommended for a ubuntu server

I currently run bitcoind on my server that is hosting an online browser game where bitcoin is integrated. The problem I have right now is that we are running out of diskspace with the increasing size ...
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34 views

will my transactions automatically tranfer from bitcoin qt to bitcoin core or do i have to manually transfer them?

My original wallet was bitcoin qt that never synchronized, unfortunately I tried to receive my bitcoin and started the transaction. Now I have an updated wallet (bitcoin core) how do I transfer the ...
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2answers
105 views

Bitcoin Core extremely high syncing time

I'm running Bitcoin Core wallet on a gaming PC with a GTX 750ti, and 3.7ghz quadcore processor, and 16gb of ram. My internet download speed is 15 116mbps via hardwire. But for some reason the syncing ...
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2answers
44 views

Transfer different currencies between wallets

I had SCOTCOIN in a counterwallet.io address and I transferred it to a Coinbase BTC wallet. I wouldn't have thought the transaction would have worked but it did. The amount of BTC in the Coinbase ...
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1answer
29 views

Can you reset 'used' addresses that were actually never used?

Bitcoin RPC command getnewaddress returns a P2PKH address from the keypool, and marks it as "used" so it will not be returned by the same RPC call again. I'm going to be doing a lot of testing on ...
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1answer
28 views

Restore a wallet from an external drive?

I have an external drive where at some point I did a complete backup of my (linux) home directory. There's a directory .bitcoin. I now have a computer, and I just installed bitcoin-qt and other ...
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2answers
37 views

Is there any wallet that allows safely storing private keys in an offline computer?

I have a computer that is 100% disconnected from the internet. I'd like to: Generate my own private keys by dice rolls; Import them on the offline computer wallet; Send coins to their addresses; ...
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24 views

Wallet loses the money to be restored in bitcoinj

I have a problem when using the library bitcoinj. When I restore a wallet from a backup, if it has received money in some of his addresses to synchronize with the blockchain, the money does not ...
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2answers
75 views

How do I move my wallet from Windows 7 to a new Windows 10 machine?

Previous answers say set up a new wallet with new address and transfer bitcoins to new address, is this the only way of doing it? I don't want to wait days for the new wallet to download blockchain ...
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1answer
49 views

setting up and verify a wallet under special circumstances

A friend of mine has a problem in verifying a wallet for the following reason. Since about 40 years he has been denied a passport and a normal ID card by the german authorities after he handed in his ...
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2answers
80 views

Bought Bitcoin from ATM, haven't showed up

I made two transactions at a BTC ATM, one of around £80, the other of £10. It has now been >3 hours since the transaction was made. However, only the smaller transaction has appeared in my Bitcoin ...
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1answer
31 views

How the restoring of wallet does?

I was trying to learn working of bitcoin and trying to understand the working of bitcoin wallet. In an HDWallet what I can see the behaviour is it will start with an address and we can add addresses ...
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2answers
69 views

Multiple public keys - Total received funds

If I create a new public key (Bitcoin Address) for every transaction I'm receiving, is there some way to find my total balances of my wallet/private key? And are there any downsides with creating ...
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2answers
38 views

How do I export my private key on MultiBit

I am using Multbit on my desktop, and I want to use my wallet on a another device like my phone.
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1answer
72 views

Are there any web wallets around with open APIs?

For a long while, blockchain.info offered a web wallet with a convenient web API, but it recently turned out that it now requires an installation to function. I'm wondering - are there any other ...
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1answer
75 views

Import Multibit HD Wallets

I have 4 wallets in Multibit HD. I have password, secret words and time stamps for each wallet. I want to move to a new computer, I know that I can use RESTORE button in Multibit HD. but I am afraid ...
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2answers
79 views

Will Confidential Transactions allow us to reuse addresses safely?

It is often said that, due to the natural transparency of the blockchain, one should have a multi-address wallet and try to not reuse addresses, so that the user's transactions are not so easily ...
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1answer
48 views

Proving collisions on Bitcoin addresses without discovery of the private key?

If there is a private key that leads to a collision on an address, it is possible to show that the private key is not the one used previously, even though they have a collision on the address? ...
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90 views

Blockchain.info may have created a bad private key

A few weeks back, a client wanted to pay me in bitcoin so I created an account at blockchain.info. The transaction went through and the coins show in my account. When I tried to use it however, I ...
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1answer
38 views

QT to Core wallet

I have Bitcoin core wallet synced, my original wallet was bitcoin QT version 0.7. My Bitcoin QT wallet never synced and i tried receiving my bitcoins. Now that bitcoin core has synchronized how do I ...
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3answers
114 views

Is it important to have an unencrypted backup of the private key?

Am I correct that in not having our private keys written in paper or otherwise backed up we are implicitly trusting the wallet developers to keep publishing wallet versions that are capable of reading ...
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1answer
98 views

Are there any complete Bitcoin systems?

It seems to me that to keep Bitcoin both decentralized and secure, the whole of the Bitcoin process should ultimately depend on each user, or rather, that the involvement of each user should ...
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2answers
171 views

Transact Bitcoin with no internet

An issue I find when I travel is that I would like to visit a cafe that accepts Bitcoin but because I am abroad I usually don't have an internet connection on my phone. I could use WiFi but what is ...