Most voted questions in Blockchain

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1 answer

GDAX Heartbeat Channel: Failed to subscribe error

You to include "product_ids" : ["BTC-GBP"] as a field ...READ MORE

Sep 7, 2018 in Blockchain by digger
 • 26,740 points • 951 views
0 votes
1 answer

Bitaps.com Error Code 10

Mistake in word qouta. Need quota $rules = [ ...READ MORE

Sep 7, 2018 in Blockchain by slayer
 • 29,350 points • 546 views
0 votes
1 answer

pybitcointools pushtx TypeError: expected string or buffer

From the looks of it, you need ...READ MORE

Sep 6, 2018 in Blockchain by digger
 • 26,740 points • 1,179 views
0 votes
2 answers

How to generate ethereum qr code address with amount?

You implement this package: ethereum-qr-code. It implements the EIP67 standard which uses ...READ MORE

Sep 6, 2018 in Blockchain by Omkar
 • 69,230 points • 4,725 views
0 votes
1 answer

Getting wrong result from SHA256 than what is expected

It's just an encoding issue - don't ...READ MORE

Sep 6, 2018 in Blockchain by digger
 • 26,740 points • 1,468 views
0 votes
1 answer

Current JSON package to retrieve info from links

public static String btcvalue(){ ...READ MORE

Sep 6, 2018 in Blockchain by slayer
 • 29,350 points • 483 views
0 votes
1 answer

How can I take the required info and send it to a div in the html page?

window.onload=function(){ var anima = document.getElementById("crypto"); var ret = document.getElementById("btn"); ret.addEventListener("click",function(){ var ...READ MORE

Sep 6, 2018 in Blockchain by digger
 • 26,740 points • 584 views
0 votes
1 answer

python-bittrex missing positional arguments

Looking at the source code from ericsomdahl/python-bittrex For the buy_limit function ...READ MORE

Sep 6, 2018 in Blockchain by slayer
 • 29,350 points • 497 views
0 votes
1 answer

Coinbase spot price SSL Error: does not support SSL at Request

Add 'strictSSL': false to the new client: var btcClient = ...READ MORE

Sep 6, 2018 in Blockchain by digger
 • 26,740 points • 612 views
0 votes
1 answer

How to create a private bitcoin network using bitcore?

I think you need to add your ...READ MORE

Sep 6, 2018 in Blockchain by slayer
 • 29,350 points • 1,078 views
0 votes
1 answer

How to get a value from SQLite to convert it?

Server side: b = BtcConverter(force_decimal=True) p1btc = b.get_latest_price('USD') p1btcr = ...READ MORE

Sep 6, 2018 in Blockchain by digger
 • 26,740 points • 526 views
0 votes
1 answer

Bitcoinj send payment from a wallet

The problem actually was with the input ...READ MORE

Sep 6, 2018 in Blockchain by slayer
 • 29,350 points • 1,663 views
0 votes
1 answer

what is the latest block chain development and top players with this tech, such as Digital Asset Holdings ?

The blockchain technology still has a few ...READ MORE

Sep 5, 2018 in Blockchain by Christine
 • 15,790 points • 359 views
0 votes
1 answer

Is it possible to claim BCH without knowing private key?

You can't claim BCH without knowing private ...READ MORE

Sep 5, 2018 in Blockchain by Christine
 • 15,790 points • 585 views
0 votes
1 answer

Transaction Verification in Blockchain

Yes if your transaction was lucky enough ...READ MORE

Sep 5, 2018 in Blockchain by Christine
 • 15,790 points • 430 views
0 votes
1 answer

How to register a user in Hyperledger Fabric?

Best practice would be to leverage an ...READ MORE

Sep 5, 2018 in Blockchain by Christine
 • 15,790 points • 1,590 views
0 votes
1 answer

Problems using system() commands under Windows

You need to have double \ for ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 404 views
0 votes
1 answer

Bitcoin address SHA256 pipe gives wrong output

You need to hash the raw byte ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 626 views
0 votes
1 answer

How to Track Payment API in Coinbase

Use the callback_url option as described in the API. ...READ MORE

Sep 5, 2018 in Blockchain by slayer
 • 29,350 points • 598 views
0 votes
1 answer

com.coinbase.api.exc­eption.UnauthorizedE­xception

Start by creating a new OAuth 2.0 ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 781 views
0 votes
1 answer

Coinbase python APIError: Failed to send money

You might want to look at the response of ...READ MORE

Sep 5, 2018 in Blockchain by slayer
 • 29,350 points • 777 views
0 votes
1 answer

Retrieve epay.info Balance with VBA and Excel

This code should log you in, provided ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 943 views
0 votes
1 answer

Javascript mBTC to BTC conversion not working

At the beginning of bitcoinConversion() you have: if (currentUnit != ...READ MORE

Sep 5, 2018 in Blockchain by slayer
 • 29,350 points • 875 views
0 votes
1 answer

python3 pip not working

The name of your package in PyPI ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,350 points • 922 views
0 votes
2 answers

UnicodeDecodeError: 'utf-8' codec can't decode byte (python)

I found a python rpc library for ...READ MORE

Sep 4, 2018 in Blockchain by Piston
 • 2,804 views
0 votes
2 answers

Angular Bitcoin error: "Error trying to diff '[object Object]'"

There are two approaches to this: 1. You ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,350 points • 13,355 views
0 votes
1 answer

Web-scraping from Coinbase with Python (Pycharm)

Data that you want to scrape is ...READ MORE

Sep 4, 2018 in Blockchain by digger
 • 26,740 points • 2,811 views
0 votes
1 answer

First block of bitcoin block gives empty string

Most likely the first byte is not ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,350 points • 682 views
0 votes
1 answer

How to get genesis block value at new bitcoin source?

chainparams.cpp contains a line of code that ...READ MORE

Sep 4, 2018 in Blockchain by digger
 • 26,740 points • 817 views
0 votes
1 answer

BitcoinJ generate address from private key

Convert string private key into bytes[]: ECKey key = ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,350 points • 2,113 views
0 votes
2 answers

Passing AJAX GET results to location

Set a variable in global scope and ...READ MORE

Sep 4, 2018 in Blockchain by eddy
 • 525 views
0 votes
1 answer

Bitcoin private key: translate from bash to perl

use bignum; # Get arbitrary precision arithmetic # ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,350 points • 1,054 views
0 votes
1 answer

Trying to understand nbits value from stratum protocol

You are right, nbits is current network difficulty. Difficulty encoding ...READ MORE

Sep 3, 2018 in Blockchain by Perry
 • 17,100 points • 989 views
0 votes
1 answer

Bitcoin sendfrom does not process transaction

Try this; $wammount = floatval(trim($_POST['wammount'])); READ MORE

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 392 views
0 votes
1 answer

client_id in Bitstamp's API

You can use this Ruby code: require 'open-uri' require ...READ MORE

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 1,047 views
0 votes
1 answer

Can't open a to big .csv file in python

You can't "split a file", but you can read ...READ MORE

Sep 3, 2018 in Blockchain by slayer
 • 29,350 points • 799 views
0 votes
1 answer

Vertically centering text in a div

Try this code: .smallUnitBox { ...READ MORE

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 618 views
0 votes
1 answer

PHP Bitcoin validate from form

isValid($addr, $version) $addr: A bitcoin address $version: The ...READ MORE

Sep 3, 2018 in Blockchain by slayer
 • 29,350 points • 1,314 views
0 votes
1 answer

Angular 4: not able to iterate over an array

Replace this : <div *ngFor="let price of prices"> ...READ MORE

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 861 views
0 votes
1 answer

Extract data from Json url result php

Try this code, it worked for me: $balance ...READ MORE

Sep 3, 2018 in Blockchain by slayer
 • 29,350 points • 9,396 views
0 votes
1 answer

How to return Google protobuff object using python Django

Protocol buffer is a binary format. You ...READ MORE

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 970 views
0 votes
1 answer

How to get the number of tokens in the Bitcoin network?

This information can easily be calculated by ...READ MORE

Aug 31, 2018 in Blockchain by Christine
 • 15,790 points • 887 views
0 votes
1 answer

BitcoinJ instance shutting down before transaction confirmation

Instead of attaching to an individual transaction ...READ MORE

Aug 31, 2018 in Blockchain by Christine
 • 15,790 points • 441 views
0 votes
1 answer

How to compute SHA256 hash for bitcoin header

header_hex = "02000000aaf8ab82362344f49083ee4edef795362cf135293564c4070000000000000000c009bb6222e9bc4cdb8f26b2e8a2f8d163509691a4038fa692abf9a474c9b21476800755c02e17181fe6c1c3" # Decode header hex into ...READ MORE

Aug 31, 2018 in Blockchain by digger
 • 26,740 points • 1,328 views
0 votes
2 answers

Coinbase button creation and callback

You can use the following code for generating ...READ MORE

Sep 3, 2018 in Blockchain by Nitika
 • 1,186 views
0 votes
1 answer

(0.7/0.001)%10 does not return 0

bcmath module can help you bcmod(bcdiv("0.7", "0.001"), "10"); // ...READ MORE

Aug 31, 2018 in Blockchain by digger
 • 26,740 points • 683 views
0 votes
1 answer

What encoding or data type can be used to get alphanumeric string in elixir?

Integers in Elixir are arbitrary precision integers, ...READ MORE

Aug 31, 2018 in Blockchain by digger
 • 26,740 points • 588 views
0 votes
2 answers

sendmany bitcoin command problem in Dynamic PHP array

You might consider spliiting that array up ...READ MORE

Sep 3, 2018 in Blockchain by Tenneb
 • 733 views
0 votes
1 answer

Unable to establish session using blockchain-wallet-service

I have the same error. It gets ...READ MORE

Aug 31, 2018 in Blockchain by Sumit
 • 738 views
0 votes
1 answer

Stuck while using call_back_address and ipn url in coinpayment.net gateway

To make use of this api, just ...READ MORE

Aug 31, 2018 in Blockchain by digger
 • 26,740 points • 3,233 views
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