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Unanswered Questions

73 questions with no answers
4 votes
0 answers
675 views

Bitcoinj: How to fix error "You should use Context.propagate() or a ContextPropagatingThreadFactory"

I'm using bitcoinj from a Scala application... and when I start it, I always get the following errors: [error] o.b.c.Context - Performing thread fixup: you are accessing bitcoinj via a thread that ...
3 votes
0 answers
466 views

Electrum Seed Purpose for MultiSig Wallet

I'm curious as to what exactly is protected by the seed that Electrum generates for a multisig wallet. My knowledge of the protocol implementation is rather basic, so please correct me where I'm wrong ...
3 votes
0 answers
742 views

Can I quickly check the cofactor of secp256k1 is 1

I was wondering if there was a quick way to check that the group underlying the elliptic curve secp256k1 was indeed cyclic with the usual point G a generator. I am given the prime number underlying ...
3 votes
0 answers
158 views

Does a bitcoinj SPV node forward transactions for itself?

The bitcoinj library offers a rather convenient WalletAppKit class, which I'd like to accept payments from customers. In order to facilitate the payments I'd offer the customers to send the ...
3 votes
0 answers
257 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 ...
2 votes
0 answers
39 views

Ypub test vectors missing for mainnet

Following extended key derivation scheme in BIP49 is there a publicly available test vector repository for mainnet? The test vectors in https://github.com/bitcoin/bips/blob/master/bip-0049.mediawiki#...
2 votes
0 answers
186 views

(P2WSH-nestedin-P2SH) Problem in solving question 1+5=6

this is my first question at this platform. this matter has scratched my head badly, please pay patient to read my question. i am trying to move traditional p2sh tx into p2wsh-nestedin-p2sh tx and ...
2 votes
0 answers
176 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 ...
2 votes
0 answers
340 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 ...
2 votes
0 answers
69 views

Broadcast a transaction, issue with Context missing from thread created by BitcoinJ

In this code i receive an already signed transaction in the form of a byte array and i would like to broadcast it to the Bitcoin network. override fun onHandleIntent(intent: Intent?) { org....
2 votes
0 answers
90 views

Why is my node being flooded with bitcoinj clients from 138.197.0.0/16?

I'm not the only one to have noticed this (discussions on reddit here and here): out of 70 or 80 incoming connections on my bitcoin core full node, about 50 are from just one single network (138.197.0....
2 votes
0 answers
151 views

Specific fee in transaction

Is there any possible way to send transaction with specific fee (not fee per kb) from wallet in bitcoinj? Where should I look to find a solution :)? My code: Address address = Address.fromBase58(...
2 votes
0 answers
125 views

Java bitcoinj: semantics of 'decompress' on encrypted key

Calling the decompress method on an encrypted ECKey object yields an ECKey object which has no private key (only public). I personally would have expected to get the same encrypted key in uncompressed ...
2 votes
0 answers
198 views

create a p2sh_script with btcruby gem

I try to create a custom p2sh script using the btcruby gem. Here is the code I used to generate my script: def self.create_script myscript=BTC::Script.new myscript<<BTC::Script::OP_IF ...
2 votes
0 answers
187 views

Java bitcoinj: Failure of getPrivateKeyEncoded or getKey?

I have the feeling something is not right with the method getPrivateKeyEncoded (which returns a DumpedPrivateKey object) of the ECKey class. If I attempt to recover the orginal key from the ...

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