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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3
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3answers
39 views

A Wallet for many blockchains (not just the bitcoin blockchain)

In terms of the future of the trust network where there will be an increasing number of fit-for-purpose blockchains such as ones for proof of asset, proof of identity, proof of ownership etc., will ...
0
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0answers
10 views

Bitcoin Wallet - host/login/pw

I was looking into creating a bitcoin based site. I am fairly new to bitcoin wallets in general and was wondering if there is a guide to integrate a bitcoin wallet(maybe through blockchain api) to my ...
4
votes
1answer
40 views

Payment with BTC not completely transferred

What happens if I start a new transaction with founds from a transaction which isn't 100% complete? (let's say, 2/3 of the green dot, but the sum is counted as full by my wallet - BTC app for Android) ...
1
vote
1answer
37 views

Why do all Electrum master public keys all start with xpub661MyMwAqRbc?

I was playing around generating wallets using the current version (2.6.4 on Mac OSX) and noticed that each new (standard) wallet I generated had the same start to the master public key: ...
3
votes
2answers
32 views

Wasted satoshi due to transaction fees

Say I have a wallet containing 1000 satoshi, and I want to transfer this to another wallet, but it doesn't cover the transaction fee, do I just waste it? I don't have the private key to the wallet ...
0
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0answers
21 views

Can Ethereum support compressed secp256k1 public keys to compute Keccak addresses?

Starting from a private key, a working functional example provides details for how an Ethereum address can be calculated from an uncompressed secp256k1 elliptic curve public key. This functional ...
-1
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0answers
17 views

Looking for open source software similar to what I'm developing

Card reader software NFC chip card reader has input for 4 digit pin can connect to most existing merchant databases and write to them represents bitcoin as something else sends and receives ...
3
votes
2answers
73 views

What criteria does Bitcoin.org use to choose which wallets to list

At this point there are hundreds of Bitcoin wallets available https://bitcoin.org/en/choose-your-wallet Clicking on a wallet reveals some areas where wallets are compared: Control Validation ...
1
vote
3answers
83 views

How can I hold Bitcoins safely in the long term?

Say I wished to hold a lot of bitcoins for many years as an investment. My worry would be about the long term safety of the different wallet mechanisms. If it's a website - what if it goes bust or ...
0
votes
2answers
19 views

the bitcoin wallet spendable amount is not updating

the spendable amount is not updating to the watch only amount. this is now going on 3 weeks or longer. I am using bitcoin ver 0.12.1 any ideas??
1
vote
0answers
22 views

Editing bitcoinJ for Android Altcoin App

So there is an altcoin created by another party and i want to edit the bitcoin-wallet app for android so that it connects to the new network. Is it enough to edit core/params/MainNetParams.java in ...
0
votes
1answer
27 views

Not receving Bitcoins to my testnet wallet

I am running the bitcoinj wallettemplate on testnet3. I have this address miAKWcmebJ7TYyZCYUx54djHsatVGdNZA8 , I tried out some websites which sends me testnet coins (Faucet). But I am not receiving ...
0
votes
1answer
30 views

Where satoshi sent by free bitcoin faucets deposited /parked?

I am earning and free bitcoin faucets say that they are sending satoshi to my bitcoin address or to some micro wallets like https://faucetbox.com or Paytoshi.com. The said micro wallets in turn send ...
1
vote
1answer
47 views

BIP 37 automatic filter update not inserting outputs

I'm having a problem with bloom filters when using the getdata message. As I understand BIP 37, setting the bloom filter on a connection using the loadfilter message with flag ...
0
votes
1answer
30 views

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({}, ...
3
votes
1answer
71 views

What options does one have to manage Bitcoins?

I started trading and buying Bitcoins for a while now, and realised: I have multiple wallets and multiple websites where I have bitcoins/litecoins. I think most of the people, including me, want use ...
0
votes
0answers
32 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 ...
3
votes
1answer
34 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: ...
0
votes
1answer
36 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 ...
0
votes
0answers
33 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: ...
0
votes
0answers
15 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 ...
1
vote
1answer
46 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 ...
1
vote
1answer
65 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. ...
1
vote
1answer
47 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 ...
0
votes
0answers
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!
0
votes
1answer
54 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 ...
1
vote
1answer
66 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 ...
4
votes
1answer
56 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 ...
0
votes
1answer
49 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 ...
1
vote
0answers
90 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 ...
0
votes
1answer
43 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 ...
0
votes
0answers
42 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 ...
0
votes
1answer
54 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 ...
1
vote
1answer
48 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 ...
0
votes
0answers
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 ...
1
vote
0answers
61 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 ...
3
votes
2answers
228 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. ...
0
votes
1answer
59 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: ...
0
votes
0answers
37 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 = ...
0
votes
0answers
31 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!
0
votes
0answers
24 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 ...
1
vote
1answer
34 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 ...
0
votes
0answers
35 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 ...
0
votes
2answers
128 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 ...
0
votes
2answers
47 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 ...
0
votes
1answer
30 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 ...
0
votes
1answer
30 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 ...
2
votes
2answers
40 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; ...
0
votes
0answers
26 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 ...
0
votes
2answers
86 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 ...