Questions tagged [bitcoinj]
A Java library for processing Bitcoin, stores blockchain headers only
228
questions
0
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0answers
10 views
BITCOINJ: how to make my wallet aware again about change of my transaction status after my server restart?
Using bitcoinj, my server created a transaction and it was broadcasted on the blockchain. I can get its history using: walletAppKit.wallet().getTransaction(txHash)
It is in Pending state.
Then I ...
0
votes
1answer
29 views
spend from p2sh with bitcoinj
i am try to spend the coins on a p2sh
first, i generate p2sh and send coins to that p2sh
ECKey clientKey = new ECKey();
ECKey serverKey = new ECKey();
ECKey thirdPartyKey = new ECKey();
List<...
1
vote
1answer
55 views
How to verify a signed message in Java?
I want to verify, in Java, a signature produced with bitcoin core's signmessagewithprivkey (equivalent to the verifymessage). I noticed a bitcoinj method similar to the bitcoin core's verifymessage - ...
1
vote
0answers
30 views
How to implement 2/2 multi-signature transactions with bitcoinj
I am using bitcoinj to implement a 2/2 multi-signature transaction. Now I want to use bitcoinj to generate a 2/2 multi-signature address and its corresponding Redeem Script through the public keys of ...
0
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0answers
85 views
How to communicate with Bitcoin core 0.17 using bitcoinj for hd wallet creation?
Hi am building one hobby project and i want to perform some operations in my own bitcoin core 0.17 by using bitcoinj lib. so is there any way by which we can use bitcoin-core 0.17,bitcoinj for hd ...
0
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0answers
48 views
Create P2SH address is not same as address saved on rpc node
I have a private key and trying to create P2SH address on testnet like my node created but they're not same. Please help me a bit, thanks so much.
PrivateKey: ...
0
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0answers
40 views
How to rebuild the balance of a Bitcoin address using bitcoin
As from the title of the question. I'm using these biconij 0.15.2 and following jar libraries:
guava 0.28
bcprov-ext-jdk15on
slf4j-2.0
and have downloaded all the full node blockchain Bitcoins. I ...
0
votes
1answer
59 views
How to sign Bitcoin transactions using JCE?
I need to sign Bitcoin transactions using JCE primitives(no bitcoinj), but my signatures are not considered valid by bitcoinj.
I tried to simulate this process. I created a random hash and signed it ...
0
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1answer
36 views
could'nt run wallettemplate project in bitcoinJ
I just forked bitcoinj and took the wallettemplate folder outside the bitcoinj folder to run it
i've followed the steps in "getting started" docs
now im stuck in trying to run the wallettemplate
i ...
1
vote
0answers
55 views
spend founds from p2wsh address,non-mandatory-script-verify-flag (Signature must be zero for failed CHECK(MULTI)SIG operation) (code 64)
i want spent coin from p2wsh address on btc testnet3 network, i use bitcoinj 0.15.2 build transaction and sign it, use 2/3 multiSig
when i send raw transaction by bitcoin core 0.17.0 command line by ...
0
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0answers
44 views
Importing the keys Issue
I imported the private keys into my wallet and they appear to be added:
This is the result when i run getImportedKeys():
[ECKey{pub HEX=...
0
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0answers
98 views
How can I generate public address from an xpub key in Java?
I have an xpub key with which I want to generate all addresses which have been used or will be used and then find out the keys which have balance.
Here's a sample xpubkey with balance- ...
0
votes
2answers
183 views
how to get the sender's address in bitcoinj
I'm trying to modify the simple wallettemplate to get the sender's address in the transaction list. However since TransactionInput.getFromAddress() doesn't exist now and getConnectedOutput()....
0
votes
1answer
42 views
When downloading the blockchain my application is become unusable, is there an issue with my code or am I using the BitcoinJ library incorrectly?
I am building a Bitcoin wallet with the BitcoinJ Library, after looking at the example of fetching a transaction that they have shown on their github it shows that you need to download the blockchain ...
0
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0answers
118 views
Error when sending signed transaction with blockcypher api
Im using bitcoinj library and blockcypher api for creating wallet and transactions on Bitcoin Testnet.
I get this error when sending signed transaction.
"error": "Error validating generated ...
1
vote
1answer
107 views
Errors when building/sending multisig transactions
Going by the example here: https://bitcoinj.github.io/working-with-contracts
I believe I've done everything correctly. Yet my program fails either to propagate correctly or because of a tx error and ...
1
vote
1answer
296 views
bitcoinj java library not decoding input addresses for some transactions
I'm trying to "extract" sender's addresses from OP_RETURN Bitcoin transactions, but my code is not working properly.
getWalletAddressOfSender(final Transaction tx)
public static Address ...
0
votes
1answer
53 views
How to protect bitcoinj wallet?
I am a new BitcoinJ user, I have few questions related about its wallet, can anyone please help:
Is there any way to encrypt the .wallet file? will anyone obtain a copy of the file be able to spend ...
1
vote
1answer
688 views
How do I sign and send a raw transaction using BitcoinJ?
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
34 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, ...
1
vote
0answers
45 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 ...
1
vote
1answer
145 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
54 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
48 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
413 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
164 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
102 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
120 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
75 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.
...
2
votes
1answer
429 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
43 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
182 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
322 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,
"...
1
vote
2answers
49 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
138 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
146 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
138 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
368 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
178 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 ...
1
vote
2answers
239 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....
1
vote
3answers
559 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
95 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 ...
2
votes
0answers
243 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
358 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 ...
2
votes
1answer
89 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
140 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
543 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
159 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 ...
-1
votes
1answer
114 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
447 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 ...
