Stack Exchange Network

Stack Exchange network consists of 174 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers.

Visit Stack Exchange

Unanswered Questions

3,282 questions with no upvoted or accepted answers
16
votes
1answer
907 views

Peergroup download of the blockchain stalls?

I'm using bitcoinsharp to build my client. I try to download the blockchain in a peergroup network. Download starts, but when progress is 98%, the download is stopped & the client is waiting (2 ...
7
votes
2answers
528 views

How to get notification on bitcoin receive with bitcoin core

How can I get Bitcoin receive notifications with Bitcoin Core. I have tried the walletnotify and blocknotify options. walletnotify is fired two times when I send or receive bitcoins. And with ...
7
votes
1answer
323 views

Can*t call chainActive.Tip()->nHeight in core.cpp

I want to call chainActive.Tip()->nHeight in core.cpp. It is not possible, I am interested in every idea. https://github.com/LIMXTEC/BitSend/blob/DEV-joshafest/src/core.cpp Here is an example : ...
7
votes
2answers
459 views

How does a mix between Proof of Work/Stake work? (Peercoin)

I think I understand Proof of Stake and Proof of Work from a conceptual point now. For themselves both are good ideas for sure, but how would a crypto currency like Peercoin (PPC) combine both of them?...
6
votes
1answer
296 views

Mixing Unequal Inputs

Let's say have 3 inputs (alice, bob, satoshi): 0.3, 1.3, 1.6. We can mix these inputs for example like this: 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.3, 0.1, 0.1. Or like this: 1.3, 1.3, 0.3, 0....
6
votes
3answers
330 views

How do I spend bitcoins from multiple wallets in a single transaction?

Using, e.g., the Bitcoin Core command line, how could I spend bitcoins from multiple wallets in a single transaction? This comment says: instead of sending the transaction to the network, you send ...
6
votes
2answers
604 views

bitcoind and onion listening

I would like to get Bitcoind to advertise that it is listening on an onion address. However, I do not want to have Bitcoind use a tor socks proxy to connect. I have a special router for tor ...
6
votes
3answers
3k views

How does Ripple's exchange work?

In Advanced/Trade tab there is a "BTC/XRP" box, and a "change issuer" link. I have no clue what should I do to post any buy or sell: I can freely modify the exchange currencies, and only USD/XRP ...
5
votes
1answer
1k views

How do I remove Wallet from Bcoin?

I'm playing with bcoin cli and created lots of wallets. Is there any way to remove wallet via WalletDB Api?
5
votes
0answers
187 views

How to build Merkle root from merkle branches?

Is there any help/tutorial on how to build the Merkle root from stratum data? The Slushpool's stratum protocol has an example of a mining job but it does not contain any Merkle branches and I don't ...
5
votes
2answers
501 views

Is it possible to discover the set of bitcoin addresses from a public key?

I'm trying to find the set of bitcoin addresses from a public key associated with a user just to analyse this user transaction. Is there any way to derive/find all the addresses that have been ...
5
votes
1answer
955 views

Cannot create a transaction

I am trying to create a transaction on the bitcoin testnet, using bitcore: Error Message : SyntaxError: JSON.parse: unexpected character at line 1 column 1 of the JSON data Here is my code: var ...
5
votes
0answers
262 views

BTCJam API 500 errors

I am currently trying to set up an application using the BTCJam api. I think the api could be very useful, but I have been unable to get it to work fully, and since support isn't responding, I thought ...
5
votes
1answer
3k views

Can someone explain this double spend on blockchain.info?

I'm confused by double-spend linked below, in which both transactions ended up in blocks mined by different miners. Specifically, I'm wondering if there's any way to tell what exactly happened based ...
5
votes
1answer
316 views

bitcoind and rollntime support

According to this page: https://en.bitcoin.it/wiki/Poolservers bitcoind's rollntime support is 'Supported, but not advertised'. I am taking that to mean that it doesn't provide the X-Roll-NTime ...

15 30 50 per page