Trending questions in Blockchain

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Getting Bitcoin address from pubkey_hash

The unexpected result is due to encoding. For ...READ MORE

Aug 22, 2018 in Blockchain by digger
• 26,740 points
• 2,920 views
0 votes
1 answer

My first Hyperledger fabric network is not working

Delete as admin the channel-artifacts folder, down ...READ MORE

Aug 10, 2018 in Blockchain by Johnathon
• 9,090 points
• 3,439 views
0 votes
1 answer

How to read file from subprocess.open in python?

you call: out, err = p.communicate() READ MORE

Aug 24, 2018 in Blockchain by digger
• 26,740 points
• 2,830 views
0 votes
1 answer

Blockchain ToBTC API not returning Php variable

Seems like you have a syntax error ...READ MORE

Sep 20, 2018 in Blockchain by digger
• 26,740 points
• 1,649 views
0 votes
1 answer

How to receive Json callback?

Try using $get = file_get_contents("php://input"); READ MORE

Aug 29, 2018 in Blockchain by slayer
• 29,370 points
• 2,598 views
0 votes
1 answer

Cant Decode Bitcoin Base58 address to byte array

In your for-loop: for (int k = b256.Length ...READ MORE

Aug 21, 2018 in Blockchain by digger
• 26,740 points
• 2,939 views
0 votes
1 answer

Javascript: cant update assets in for-loop

Your for-loop will not wait for the ...READ MORE

Sep 17, 2018 in Blockchain by slayer
• 29,370 points
• 1,771 views
0 votes
1 answer

How do transactions create a new block in Blockchain?

Bitcoin puts a cap of 2,400 transactions ...READ MORE

Aug 10, 2018 in Blockchain by Christine
• 15,750 points
• 3,391 views
0 votes
1 answer

Ubuntu "get attach" command failed

The geth.ipc gets created when Geth is succesfully launched.It ...READ MORE

Sep 7, 2018 in Blockchain by Surya
• 2,190 views
0 votes
1 answer

Websockets for Block.io API giving an error message

Try something like this: https://jsfiddle.net/bxw3v8c7/ <html> <script src="http://code.jquery.com/jquery-1.11.0.min.js"></script> <script> var btcs = ...READ MORE

Sep 10, 2018 in Blockchain by slayer
• 29,370 points
• 2,061 views
+2 votes
1 answer

Has Blockchain made illegal activities easier?

Not really.. The transparency of Blockchain makes ...READ MORE

Sep 20, 2018 in Blockchain by Sumit
• 1,542 views
0 votes
1 answer

Coinbase currency_exchange error

This is the fix: $(document).ready(function () { ...READ MORE

Aug 30, 2018 in Blockchain by digger
• 26,740 points
• 2,523 views
0 votes
1 answer

CompleteableFuture in a loop contruct in a private Ethereum Blockchain

You might be able to benefit from ...READ MORE

Sep 14, 2018 in Blockchain by slayer
• 29,370 points
• 1,868 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
• 2,465 views
0 votes
1 answer

Bitstamp API signature in Ruby

Here is a code that works: require 'open-uri' require ...READ MORE

Aug 28, 2018 in Blockchain by slayer
• 29,370 points
• 2,591 views
0 votes
1 answer

Bruteforcing OpenSSL to decrypt bitcoin backup.

You need to add -passin pass:XXX options, where XXX ...READ MORE

Aug 24, 2018 in Blockchain by digger
• 26,740 points
• 2,766 views
0 votes
1 answer

How can i extract information from Ethereum blockchain using python?

Give the RPC (--rpc) option when you ...READ MORE

Jul 31, 2018 in Blockchain by Shashank
• 10,400 points
• 3,796 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
• 29,370 points
• 2,325 views
0 votes
2 answers

Python syntax error because of version conflicts.

As mentioned in the reply to my ...READ MORE

Aug 13, 2018 in Blockchain by Omkar
• 69,180 points
• 3,188 views
0 votes
1 answer

Cant install python module for python3.6 to use Jsonrpc for altcoin

Try this  VERSION=0.1 python3 setup.py install and there's also ...READ MORE

Sep 7, 2018 in Blockchain by digger
• 26,740 points
• 2,148 views
0 votes
1 answer

Not able to generate WIF from extended private key

I found the answer to this in the ...READ MORE

Aug 29, 2018 in Blockchain by digger
• 26,740 points
• 2,535 views
0 votes
1 answer

Blockchain Hyperledger private key not able to send coins

From the code you posted, if(whichType == TX_SCRIPTHASH){//pay ...READ MORE

Sep 14, 2018 in Blockchain by digger
• 26,740 points
• 1,845 views
0 votes
1 answer

Running blockchain script in a one liner

This is a direct translation of the ...READ MORE

Sep 18, 2018 in Blockchain by slayer
• 29,370 points
• 1,657 views
0 votes
1 answer

Bitcoin: error parsing json

Make these changes in your code: json="'{" to ...READ MORE

Aug 22, 2018 in Blockchain by digger
• 26,740 points
• 2,818 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
• 2,427 views
0 votes
1 answer

eth.getBalance() always returns 0 in testnet

You are not connecting to the right ...READ MORE

Jul 24, 2018 in Blockchain by Christine
• 15,750 points
• 4,066 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
• 2,295 views
0 votes
1 answer

Smart contract limitations in Ethereum and Hyperledger Fabric

No, the contract cannot sign on behave of B. A ...READ MORE

Sep 11, 2018 in Blockchain by Christine
• 15,750 points
• 1,948 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
• 2,317 views
0 votes
1 answer

How to send events in Hyperledger Composer?

You define the event in your .cto ...READ MORE

Aug 25, 2018 in Blockchain by Perry
• 17,100 points
• 2,706 views
0 votes
1 answer

Trying to deploy fabric v1.1.0 on Kubernetes but getting a random error

Any particular reason for following slightly older ...READ MORE

Aug 28, 2018 in Blockchain by Johnathon
• 9,090 points
• 2,565 views
0 votes
1 answer

How to check payment in Blockchain.info wallet?

The above error is probably occurring due ...READ MORE

Aug 21, 2018 in Blockchain by Perry
• 17,100 points
• 2,934 views
0 votes
1 answer

How to get data from Google Finance to Google sheets?

You need to have a from and ...READ MORE

Aug 21, 2018 in Blockchain by slayer
• 29,370 points
• 2,828 views
0 votes
2 answers

Coinbase-php createButton() throws 401 error

I found the explanation for this on ...READ MORE

Aug 30, 2018 in Blockchain by Naman
• 2,398 views
0 votes
1 answer

Kraken Api, withdrawal issue “Invalid asset”

asset need to be specified as lowercase, so you ...READ MORE

Aug 29, 2018 in Blockchain by Sumit
• 2,476 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
• 29,370 points
• 2,167 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
• 2,162 views
0 votes
1 answer

How to resolve Blockchain DNS using Python Requests?

Look at this example: import requests from random import ...READ MORE

Aug 22, 2018 in Blockchain by Christine
• 15,750 points
• 2,784 views
0 votes
1 answer

Google API post request to IBM blockchain error

You have specified query as parameter to method and function but if you ...READ MORE

Sep 14, 2018 in Blockchain by digger
• 26,740 points
• 1,760 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
• 29,370 points
• 2,168 views
0 votes
1 answer

Serializing payment details in google protocol buffers

This is how you can do it: serialized_payment_details ...READ MORE

Sep 11, 2018 in Blockchain by slayer
• 29,370 points
• 1,860 views
0 votes
1 answer

Not able to run Bitcoin’s autogen.sh file.

Installing autoconf and automake would solve the ...READ MORE

Aug 22, 2018 in Blockchain by slayer
• 29,370 points
• 2,720 views
0 votes
1 answer

Error while generating smart contracts which returns array of struct in Web3j v3.3.1

Solidity does not support returning structs in ...READ MORE

Jul 26, 2018 in Blockchain by Perry
• 17,100 points
• 3,887 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
• 2,070 views
0 votes
1 answer

React Native to make requests to bitcoin wallet

I found an API that could help ...READ MORE

Aug 23, 2018 in Blockchain by digger
• 26,740 points
• 2,667 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
• 29,370 points
• 2,061 views
0 votes
1 answer

blockchain.info api_code is missing

Check the blockchain api. it should be $Blockchain ...READ MORE

Aug 22, 2018 in Blockchain by slayer
• 29,370 points
• 2,705 views
0 votes
1 answer

Cannot download nvm install v.8.9.1 version - clang checksum do not match, sed issue

Try a clean install of node again npm ...READ MORE

Jul 25, 2018 in Blockchain by charlie_brown
• 7,720 points
• 3,911 views
0 votes
1 answer

How to access member functions of smart contract using web3?

I have implemented a similar feature and ...READ MORE

Aug 13, 2018 in Blockchain by slayer
• 29,370 points
• 3,087 views
0 votes
1 answer

"Blocking waiting for a file lock on the registry index" after building parity from source

I had the same issue and got ...READ MORE

Aug 28, 2018 in Blockchain by Johnathon
• 9,090 points
• 2,465 views