Questions tagged [bitcoinj]
A Java library for processing Bitcoin, stores blockchain headers only
-2
votes
0answers
18 views
Generate Litecoin Address
I'm using bitcoinj to handle bitcoin.
Now I want to generate litecoin address using bitcoinj library.
Please help me who knows this answer.
Thanks.
1
vote
1answer
75 views
i'm try to send raw transaction ,bug i got ……
Transaction transaction = new Transaction(params);
// 遍历未花费列表，组装合适的item
double sum = 0;
String address = null;
List<Unspent> unspents = new ArrayList<>();
Map<...
1
vote
0answers
15 views
What to pass in Transaction Input using Bitcoinj library
URGENT - Need help with setting up Transaction Input and Output objects
Transaction rawTransaction = new Transaction(params);
txnAmount = Coin.valueOf(50000000);
rawTransaction.addOutput(txnAmount, ...
0
votes
0answers
12 views
Is there a way to extract the transaction amount for each transaction in each block with bitcoinJ?
Is there a way to do this as in the question above? The link to package is below:
https://github.com/bitcoinj/bitcoinj
1
vote
0answers
20 views
library for light-weight wallet : btcsuite or BitcoinJ [closed]
Do btcsuite + Neutrino(Lightning-lab) together provide sufficient foundation for light client capable to service onchain transactions (not multisig & not related to Payment Channels)?
Or is it ...
0
votes
0answers
18 views
Making a service like blockchain.info webservice using Bitcoinj library
In my project I need three type of monitoring on Blockchain network:
Monitor all the transactions
Monitor all new blocks
Calculate confirmations for each hash
blockchain.info exactly does the same ...
1
vote
1answer
60 views
Changed address
My address has changed but I'm showing 0.00mbtc. when I lookup the information on Blockchain it confirms 0.00 but then States the address has yet to be used on the network. I'm confused, please help.
0
votes
1answer
41 views
Adding an external key pair to a local bitcoinj wallet
I need to add a vanity address to a local wallet that I maintain using bitcoinj APIs. I'm not able to search for the vanity using bitcoinj APIs directly, on my local PC, because my vanity is too fancy....
1
vote
0answers
27 views
Bitcoinj Spend from a address directly without wallet
I am stuck trying to send coins from arbitary privateKey in bitcoinj. How can I make the following function work without using the Kit or Wallet classes?
@Override
public String transferCoin( ECKey ...
1
vote
1answer
122 views
Bitcoinj wallet can't receive coins in Testnet3
I have a problem with bitcoinj.
I have created a wallet and than trying to send coins to it in Testnet3 using this faucet:
https://coinfaucet.eu/en/btc-testnet/
Coins sended, transaction confirmed, ...
0
votes
1answer
41 views
Get private-keys from bitcoinj
I'm using bitcoinj library for bitcoin.
I want all private keys of all my generated addresses.
How can I achieve that? Please help who knows this answer.
Thanks.
0
votes
1answer
44 views
Can't see balance after some time
I'm trying to use bitcoinj library to receive bitcoin payments and monitor the balance on the address. My implementation is based on DeterministicKey watching public key. The code below is working ...
0
votes
1answer
50 views
Change derive path
I've used bitcoinj wallet and used derive path as below.
public static final ImmutableList<ChildNumber> ACCOUNT_ZERO_PATH = ImmutableList.of(ChildNumber.ZERO_HARDENED);
But I made changes in ...
0
votes
1answer
36 views
Bitcoinj Standard
I'm using bitcoinj for transferring bitcoin.
I don't know which standard bitcoinj supports?
Bip32, Bip39, or Bip44
Please help who knows the answer.
Also I want convert bitcoinj standard to Bip44.
...
1
vote
1answer
109 views
Get private-keys from wallet using bitcoinj
I'm using bitcoinj for transferring bitcoin.
Now I want to export private key of my wallet.
So how can I get the private key from bitcoinj?
1
vote
0answers
28 views
Send funds from a specific address with bitcoinj
I have two addresses in my wallet.
I use one of them as a buffer and clients can receive money only from that address.
How can I send money from a specific address?
0
votes
1answer
55 views
Issue with the BitcoinJ for Litecoin. Which dependency can be used for Litecoin?
I've created a crypto-currency wallet for Bitcoin using BitcoinJ. Now I want to add Litecoin in this wallet. How to implement BitcoinJ dependency for Litecoin?
While using BitcoinJ for both Litecoin ...
0
votes
1answer
55 views
Does exist some library for decode/encode raw transaction?
I want to parse raw transaction into JSON then change some values and encode back to hex. JSON like this:
{
"addresses": [
"346vcZZ6QV4nr68fybMEuA7qxxQeyKWoPS"
],
"block_height": -1,
"...
0
votes
0answers
78 views
how to avoid blockchain downloading in bitcoinj?
I have created a bitcoin wallet with bitcoinj. It works with transactions very concurrently but after downloading whole blockchain. There is any way to avoid this downloading or faster downloading of ...
0
votes
0answers
56 views
How do I get bitcoin cash wallet balance in bitcoinj?
I have using this method to get balance.
kit.wallet().getBalance().toFriendlyString();
But it only gives me refreshed address balance.
and it also 0 BTC.
1
vote
1answer
20 views
Trying to run the Main file of the wallet template from bitcoinj but JavaFX not found
Trying to run the Main file of the wallet template from bitcoinj but JavaFX not found. When I run the main file of the wallettemplate I get multiple errors of javafx packages not found. When I try to ...
0
votes
1answer
72 views
Sign Bitcoin transaction with several inputs using bitcoinj. Broadcasting of transaction failed
Good day!
I'm working with low level API to make tx and sign it offline. But after all preparations I try to broadcast it and than i get an error from network:
16: mandatory-script-verify-flag-...
1
vote
2answers
42 views
Is there any RPC Java library using which I can call lite coin methods? [closed]
In case of bitcoin there is bitcoinj. but in Litecoin what will I use?
0
votes
1answer
60 views
Restore from 24 words seed
I have used bitcoinj for createting wallet. I made some changes and try to generate 24 words seed instead of 12 words seed.
When I try to restore from 24 words seed, at that time I am using 3 method ...
0
votes
1answer
126 views
convert 12 word seed into 24 word seed
I used bitcoinj library for wallet and it generates 12 word mnemonic seed.
But I made changes in it and created 24 word mnemonic seed.
But I need to convert old 12 word mnemonic seed into new 24 ...
0
votes
1answer
106 views
Problematic Digital Signature with SECP256K1
I am trying to test out TestNet3 and I have a keypair generated using Java crypto library.
The private key is 23F847360E1EB348A212F443C633058080A8EB9F05AD132F8B82D51FE672EADD and the public key is ...
0
votes
2answers
92 views
BitcoinJ how to understand receive Address?
I need to receive bitcoins from the customers, and then add to theirs virtual account some credits. I use BitcoinJ wallet and I want to give each customer the unique Address created by
walletAppKit....
0
votes
3answers
276 views
How to derive segwit addresses from an extended public key?
I tried to use the following code:
DeterministicKey key = DeterministicKey.deserializeB58(null , "xpub...", MAINNET);
DeterministicHierarchy hierarchy = new DeterministicHierarchy(key)
;
...
1
vote
1answer
44 views
Does wallet support multi account/user?
Does bitcoinj wallet support multiple accounts/users?
It seems BIP44 is not supported and found multiple threads indicating lack of support.
Just wanna get a definitely answer. If not yet, any plan ...
0
votes
0answers
48 views
how to download blocks from a specified date using bitcoinj
I need to load the blocks for PostgresFullPronedBlock for the last six months or the last 1000 blocks.
`
NetworkParameters params = TestNet3Params.get();
BlockStore store = new ...
2
votes
0answers
170 views
Broadcasting signed transaction from Watching wallet using bitcoinj
I am working with watching wallet and Offline wallet using bitcoinj,
I created Watching Wallet using tpub key of Offline Wallet
I am receiving payment on watching wallet Fine,
now I want to ...
1
vote
1answer
214 views
What is the difference between bitcoin core vs bitcoinj vs bitcoind vs bitcoinqt?
What is the difference between bitcoin-core vs bitcoinj vs bitcoind vs bitcoin-tx vs bitcoin-cli vs bitcoinqt?
There are many github repo with different names around bitcoin.
Can someone really help ...
0
votes
0answers
26 views
Getting old address while restoring
Long CreationTimeSeconds = Pref.getValue(activity, Config.PREF_CreationTimeSeconds, System.currentTimeMillis());
List<String> strlist = UtilsFunctions.getMnemoniWordlist(activity)...
2
votes
1answer
65 views
Handling fees and setting them
Im trying to get the estimation of how much the fees will be when a final amount is decided on. I would say im getting familiar with bitcoinj but not completely with java so im still learning how to ...
0
votes
1answer
82 views
connect watching wallet with blockchain
i have created watch wallet
Wallet wallet = Wallet.fromWatchingKeyB58(params, tPub, DeterministicHierarchy.BIP32_STANDARDISATION_TIME_SECS);
How can i link this with block chain
i am using ...
2
votes
1answer
321 views
how to create Watching Address from available xPub key
Watch-only wallet can only receive payments but not spend the available coins. I am using bitcoinj (in Java).
Can anyone please tell me that How to create watching addresses from available xPub key? ...
1
vote
0answers
107 views
how to create unsigned transaction by hot wallet which is retrieved from watchingKey
via Bitcoinj , i am trying to create hot wallet as front used to get balance , create unsigned transaction (corresponding , i have cold wallet forever be offline used to sign transaction only)
My ...
0
votes
0answers
18 views
Transaction not broadcasting
I am using SendResult for transaction and I am adding the default reference fee 5000 satoshi still the transaction is not broadcasting
-1
votes
1answer
81 views
Transaction not broadcasting on peer network(Blockchain)
I am using Bitcoinj and doing the transaction and I am getting the TX hash but the hash is not showing in any explorer site
SendRequest finalReq = SendRequest.to(toAddress, Coin.parseCoin(ammount)....
0
votes
1answer
173 views
BitcoinJ : Balance and Transaction are not showing in wallet after restoring wallet from MnemonicCode
I have created a wallet with the help of WalletAppKit on Android and did some transaction in it.
Now what I try to do is, restoring that wallet from mnemonic code (BIP39). It also returns the Wallet ...
0
votes
1answer
116 views
BIP 84, BIP 173 Implementation in BitcoinJ
Can BitcoinJ (Java) supports complete implementations of BIP 173, BIP 84?
How can segwit address can be created using BitcoinJ for SPV wallet?
0
votes
1answer
88 views
How to get confirmation of transaction using Bitcoin j implementaion
I am using BitcoinJ lib for creating wallet and transaction.But now I want to know the confirmation count.So, is there any method which can give confirmation count
0
votes
1answer
284 views
generate wallet addresses from extended public key
i am trying to generate addresses from Extended Public Key using bitcoinj but can't figure out, how can i possibly do this.
i need those addresses for watch-only wallet, those addresses were
...
0
votes
1answer
61 views
Cancel pending transaction (bitcoinj)
I'm using bitcoincashj (https://github.com/bitcoinj-cash/bitcoinj) I created a transaction and sent it. But it didn't broadcasted to network. Can I cancel this transaction?
Current wallet status is:
...
0
votes
0answers
116 views
Build specific scriptPubKey
Help!
I try to build specific scriptPubKey for output using bitcoinj library. It should look like this:
1 OP_DROP 54657374313131 5 OP_2DROP 3355185 OP_DROP OP_DUP OP_HASH160 ...
0
votes
0answers
137 views
Bitcoinj - How to create/generate wallet address like in trading platform
public static void createDashWallet(NetworkParameters params) throws BlockStoreException, IOException {
WalletAppKit kit = new WalletAppKit(params, new File("."), "poporing");
kit.startAsync()...
0
votes
1answer
139 views
Bitcoinj unable to load wallet
So I want to load a wallet and get its balance also sending some funds with the corresponding wallet, here is my code
public class DumpWallet {
public static void main(String[] args) throws Exception ...
0
votes
2answers
175 views
Transaction history with bitcoinj
I am new to bitcoinj. I want to print out the list of transactions like as follow for a wallet:
1- Sent 1 BTC to Adress1 on 'A' Time
2- Received 5 BTC from Adress2 on 'B' time
3- Sent 2 BTC to ...
0
votes
0answers
22 views
How to know the bytes of input using Bitcoinj [duplicate]
I am using Bitcoinj and it provides method to send transaction and set the fee but want to know what will be the fee for the particular transaction so it can be fast.So I came up using setFee/Kb.But I ...
0
votes
1answer
94 views
How to size in bytes for a transaction using BitcoinJ
The calculation of a transaction fee uses fee/kb. So how do I get the size in bytes for a transaction using BitcoinJ?
SendRequest req = SendRequest.to(address, value);
req.feePerKb = Coin.parseCoin("...
