Unanswered Questions
2,540 questions with no answers
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 ...
- 1,524
3
votes
0
answers
103
views
Whisper Implementation in Bitcoin
Is there some kind of implementation in bitcoin to communicate between nodes, which is similar to the Whisper Communication in Ethereum ?
Whisper, is a communication protocol for DApps to communicate ...
- 758
3
votes
0
answers
109
views
Claim or Refund Functionality Implementation in Bitcoin
I was reading the paper written by Kuramesan and Bentov with title "How to use Bitcoin to Design Fair Protocols".
Source: https://eprint.iacr.org/2014/129.pdf
Specifically, the sender creates a ...
- 341
3
votes
0
answers
585
views
Blockchain.info may have created a bad private key
A few weeks back, a client wanted to pay me in bitcoin so I created an account at blockchain.info. The transaction went through and the coins show in my account.
When I tried to use it however, I ...
- 31
3
votes
0
answers
64
views
Bitcoin-based Distributed Donation Systems, whichs do you know?
I've heard that Tor Project constructed such system:
Everybody who are participating in the Tor Network, creating Exit Node or even Middle Node, would simply paste his Bitcoin address into the "...
- 31
3
votes
0
answers
221
views
Is there a way to accept fiat currencies online without having a credit card and having the fiat automatically converted to Bitcoin?
Is there a way to accept fiat currencies online without having a credit card and having the fiat automatically converted to Bitcoin?
I know services such as BitPay and so on let's you accept Bitcoin ...
3
votes
0
answers
250
views
Unable to limit tcp bandwidth using tc in QoS for localhost
I am trying to connect few bitcoind instance running on different ports on my local machine and control the bandwidth between those connections. I used the tc utility as following:
#network interface ...
- 507
3
votes
0
answers
428
views
Cannot obtain a lock - Already deleted lock file
I am trying to open Bitcoin Core of "Cannot obtain a lock on C:User/App..." I deleted the lock. file like previously suggested but cannot find a solution after that! If I reinstall will I loose the ...
CommunityBot
- 1
3
votes
0
answers
527
views
The setup steps for generating bitcoin addresses programmatically and checking for payments with walletnotify
I have read this question and done some investigation, and I want to make sure I have some of this right.
If I have a server somewhere where I can install bit coin (I'm thinking bitcoin-qt on Ubuntu)...
CommunityBot
- 1
3
votes
0
answers
252
views
Electrum - Why do I have to Restore every time I use it?
I did not forget my password. I have been done dozens of transactions with Electrum, and every time I try to send bitcoins, I get "Invalid Password". So I restore from seed, set a new password, use it ...
- 31
3
votes
0
answers
529
views
bitcoind inconsistent authentication error
I am using a Linux computer.
The issue I am having is that sometimes I have to use "kill -s 9 (bitcoind pid)" and restart bitcoind using "bitcoind -txindex" because bitcoind will sometimes not let me ...
- 5,338
3
votes
0
answers
429
views
Is it possible to import transaction history from an old electrum wallet to a new electrum wallet?
I see there is an option to export history but no option to import history. It would be nice to keep all my history in one wallet. Thx.
- 31
3
votes
0
answers
182
views
getblocktemplate times out after being called many times
I am writing a program about bitcoin mining. It calls the RPC method getblocktemplate every second. Sometimes bitcoind doesn't reply to my RPC getblocktemplate request, but bitcoind still accepted new ...
- 29.5k
3
votes
0
answers
719
views
How to get BTCChina full Orderbook (FIX or alt API)
I have worked through BTCChina's FIX APi (using their java example). Creating a subscription request message such as:
public static Message marketDataIncrementalRequest(String symbol) {
quickfix....
- 1
3
votes
0
answers
129
views
When does the "reject" string have an empty reject reason upon submitting a new block?
I submitted a new block using the rpc command submit. And I just got a "reject" string without a reject reason.
I checked the bitcoind source code, and found that it usually sends a reject reason; ...
- 77.9k