A Java library for processing Bitcoin, stores blockchain headers only
-3
votes
0answers
539 views
How To Mining YAC(Yet Another Coin)? [closed]
I have some information about YAC(Yet Another Coin) and then i like it.
i need some advice for that. can anybody help me to explain about YAC(Yet Another Coin)?
3
votes
1answer
90 views
Tutorials for BitcoinJ
Beside the examples that come with BitcoinJ and the documentation on Google Code, does anyone know of any tutorials for using BitcoinJ?
1
vote
0answers
34 views
How to get hex string from transaction in bitcoinj
I want to use this tool: http://blockchain.info/pushtx to push transaction. I don't understand the input data. It says it is hex string representation. I've read information about that in the raw ...
0
votes
1answer
113 views
How to receive transaction in bitcoinj wallet
I am a real noob with bitcoin and bitcoin. I have a lot of questions and I don't know where to start. Let me try.
I have a bitcoin-qt client and I downloaded the chain (took me one day) and now I am ...
0
votes
1answer
55 views
Open bitcoin-qt wallet with bitcoinj
I try to open the bitcoin-qt wallet with bitcoinj, I write this code:
private static final File WALLET_FILE = new File("C:\\Users\\Bapt\\AppData\\Roaming\\Bitcoin\\wallet.dat");
public static void ...
1
vote
0answers
79 views
Bitcoin-qt database for BitcoinJ downloadBlockChain()
I am using bitcoinJ to develop a bitcoin based payment module for my project. I have the complete block chain downloaded/in sync with the network on the bitcoin-qt client.
Is there a way I can use ...
5
votes
1answer
96 views
How to run Bitcoinj on Heroku?
Does anyone know where I might find a tutorial on how to deploy a bitcoinj server (essentially a replica of a bitcoind server with an rpc API) on Heroku?
2
votes
0answers
63 views
Test Network Genesis Block
I am using BitCoinJ for my java application which fetches the test network's genesis block. I referred to the basics mentioned at JavaWorld and BitCoins Google Code wiki.
I am able to get it running ...
3
votes
1answer
55 views
BitCoinJ for Cloud based application
I am currently working on a cloud based project that will be accepting payments using bitcoins.
I intend to use BitCoinJ to handle the payment. Unfortunately the only help I am able to get is from the ...
1
vote
0answers
83 views
How do I create an offline transaction in java to broadcast via blockchain.info?
Blockchain.info has a PushTX API.
How do I create & sign a raw transaction in Java for use in this API?
Should I use bitcoinj?
Are there any code samples?
4
votes
2answers
248 views
Getting balance/downloading blockhain with bitcoinj
I am playing around with bitoinj and I can't seem to even get the most basic functionality running.
What I want to do: I have one wallet with one address. I want to dowload blockchain and from that, ...
4
votes
1answer
113 views
Load a transaction with bitcoinj
I am developing simple Bitcoin application using the bitcoinj library: The user enters the hash of a transaction and my application should return detailed information about that transaction.
How can ...
5
votes
2answers
2k views
Is there a known way to export my wallet private key from the “Bitcoin Android” app (com.bitcoinandroid)?
A while back, I installed the Bitcoin Android app and moved 5 BTC on it. Fast forward to now, new phone, new ROM, and the app seems completely unwilling to update its blockchain, meaning I have no way ...
2
votes
1answer
124 views
How to get destination address from bitcoinj TransactionOutput?
I believe TransactionOutput represents one of the outputs of a transaction.
I have a list of such output objects, and a String that represents my own address. I would like to check that this output ...
5
votes
1answer
404 views
How do I generate offline transactions in Java?
I'd like to develop a Java binding to the Stratum Overlay Network (a server for thin clients). This requires signing on offline transactions.
Can I directly use bitcoinj's API to do this? Can I ...
4
votes
1answer
226 views
How can you find how many keys you wasted in bitcoinj?
Supposed you create a new wallet and pre-populate it with 100 keys (so you don't need to back it up after each transaction).
How do you know, given an instance of Wallet, which keys have been "used ...
