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Questions tagged [bitcoinj]

A Java library for processing Bitcoin, stores blockchain headers only

-2
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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("...