I'm trying to make a little web app (just for learning purposes), where I can push on a button, and it will send some bitcoin from (my own) bitcoin wallet A to bitcoin wallet B. I've managed to learn some stuff about bitcoin, the blockchain,...
I'm using Redux in my React App, currently only have 1 reducer at the moment for a Portfolio of cryptocurrencies. Just an array of coins.  When I dispatch my ADD_COIN action the first time I get back an Array of 1 object which is expected. Howeve...
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 child addresses, i.e. 3 BTC & 2 BTC.  Now, I have...
To further extend my understanding of bitcoin I would like to try and build my own SPV-based wallet using the Ionic] (cordova) mobile app framework (hybrid-app).  Using the browserified version of bitcoinjs-lib I have managed to implement all the key...
I am creating a raw transaction using the bitcoin testnet, but when I push the raw transaction onto the network it takes all my balance. Am I suppose to send the remaining 'change' back to myself? Here is the code im using to create the raw t...
I have coin currency market application and I would like to integrate a graph in it, however I don't know from where data should be taken. Is there some API that I can integrate into my highcharts in order to get graphical representation of value...
I have been trying to install bitcore using npm version 3.8.7 but keep getting the following error:  any help would be much appreciated      npm ERR! Darwin 14.4.0   npm ERR! argv "/usr/local/bin/node" "/usr/local/bin/npm" "i"...
I'm trying to identify if a URL component includes a bitcoin block hash, which looks like 000000000d32098b5faf86d17cb6e1828ac98f3b104f019dd78bfc9fdc1ae7b0  What's a regex I can use to identify that this is a block hash as opposed to a regular...
I am trying to decode the bitcoin block, but when I am trying to read magic number which are first four bytes , it is showing me some different result then 0xD9B4BEF9. can anyone help me with this issue? My code is as follows:   fs = require('fs&...
I am making ab API call to coinbase using the example coinbase supplied but I get Error: SSL Error: https://api.coinbase.com/v2/prices/BTC-USD/spot does not support SSL at Request  npm install coinbase var Client = require('coinbase').Client;...

Tags

Recent Questions

Top Questions

Home Tags Terms of Service Privacy Policy DMCA Contact Us

©2020 All rights reserved.