Unanswered Questions
172 questions with no upvoted or accepted answers
4
votes
1
answer
1k
views
php private key to wallet import format (wip)
I have been writing a php file intended to create a bitcoin private key and change it to wallet import format. The issue is when I try a command in a gnome-terminal such as:
bitcoin-cli importprivkey ...
CommunityBot
- 1
3
votes
0
answers
140
views
What is exactly Randstorm vulnerability?
I've read the article from Unciphered about it, multiple times, and still fail to understand it
It basically says that wallets generated by BitcoinJs front end library from 2011 to 2015 are vulnerable ...
- 77
3
votes
1
answer
475
views
Partial private key recovery
I had the pleasure of setting up a Bitcoin wallet using the Blue Wallet app and diligently noted down the 52 characters of my private key on a piece of paper for backup purposes.
Upon revisiting the ...
- 1
3
votes
0
answers
117
views
Schnorr signature key storage
So everyone talks about Schnorr signatures and Taproot when talking about Bitcoin. I would like to know if there is any standard that they will use to store the keys used in this algorithm. And also I ...
- 77.9k
3
votes
1
answer
324
views
Key Derivation - CKDprv & CKDpub
I would like to replicate this derivation of keys.
Chain m
ext pub: xpub661MyMwAqRbcFtXgS5sYJABqqG9YLmC4Q1Rdap9gSE8NqtwybGhePY2gZ29ESFjqJoCu1Rupje8YtGqsefD265TMg7usUDFdp6W1EGMcet8
ext prv: ...
CommunityBot
- 1
3
votes
1
answer
134
views
How much on-chain activity is to and from exchanges?
Are there any data services which provide metrics that show how much of the transactions on the Bitcoin blockchain are to and from exchanges?
CommunityBot
- 1
3
votes
4
answers
4k
views
Are there any opensource PHP cryptocurrency exchange/marketplace
As the title suggest, are there any opensource PHP cryptocurrency exchange/marketplace.
Most of the ones I found does not seem to work or are abandoned.
CommunityBot
- 1
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
1k
views
Import private keys from Multibit into Armory?
I am attempting to import a private key that was made in Multibit, into Armory. I am able to restore this key into other wallets, such as the Android Bitcoin Wallet, Mycelium and Electrum, but when I ...
- 31
3
votes
0
answers
87
views
How did short positions work on Bitcoinica?
I'm trying to find information on CFDs and exactly how Zhou Tong utilized them to short, but am coming up dry.
- 2,849
2
votes
1
answer
775
views
Using online exchange like ChangeNOW or FixedFloat to create anonymity?
Online exchanges like ChangeNOW, SimpleSwap and FixedFloat, unless they keep records for a long period, which theoretically might be later accessed by authorities, might offer considerable privacy. I ...
CommunityBot
- 1
2
votes
2
answers
404
views
How to exchange small amount of bitcoin?
Hi I have a little question could you tell which is the best method to exchange 2.27mBTC (18€) in euros or USD?
I registered on coinmama but the minimum for them is 50€ is there any other exchange ...
CommunityBot
- 1
2
votes
0
answers
470
views
Getting Error "Unable to sign input, invalid stack size (possibly missing key)"
I have created a key from using coinstring, and then imported it into my wallet. Then I ran:
bitcoin-cli signrawtransactionwithkey "$rawtxhex" "[\"$mykey$\"]"
But it results in:
Unable to sign ...
- 221
2
votes
0
answers
391
views
How to send & receive bitcoin using bitcoinjs-lib?
First I create HD Wallet using BIP32 using mnemonics.
Now I want to generate new child addresses with private key using xpub & xpriv for every receive.
Then for example, I received BTC in 2 ...
- 1
2
votes
0
answers
377
views
How does one calculate a margin position's liquidation price for Bitfinex and other exchanges?
I'm learning how margin works and wanted to understand how does liquidation price work in a margin position when using an exchange like Bitfinex? Their requirements is 30% equity.
Let's say I ...
- 11.1k