Recent questions tagged smart-contract

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1 answer

String concatenation in solidity?

Sep 21, 2018 in Blockchain by digger
 • 26,740 points • 3,361 views
0 votes
1 answer

Web3 1.0: What does `web3.eth.call(tx)` return for a contract creation?

Sep 17, 2018 in Blockchain by slayer
 • 29,370 points • 1,221 views
0 votes
1 answer

Solidity, javascript Wrong format: invalid address

Sep 17, 2018 in Blockchain by slayer
 • 29,370 points • 1,288 views
0 votes
1 answer

Calling functions from other contracts solidity

Sep 17, 2018 in Blockchain by slayer
 • 29,370 points • 1,520 views
0 votes
1 answer

Access multiple return values (a, b, c) from solidity function in web3js

Sep 14, 2018 in Blockchain by digger
 • 26,740 points • 3,116 views
0 votes
1 answer

Invalid opcode error in a simple Solidity contract and script

Sep 14, 2018 in Blockchain by digger
 • 26,740 points • 4,822 views
0 votes
1 answer

How to use ethereum contract's state changing method in javascript?

Sep 11, 2018 in Blockchain by sabby
 • 4,370 points • 1,039 views
0 votes
1 answer

Truffle tests not running after truffle init

Sep 11, 2018 in Blockchain by sabby
 • 4,370 points • 1,927 views
0 votes
1 answer

Smart contract limitations in Ethereum and Hyperledger Fabric

Sep 11, 2018 in Blockchain by sabby
 • 4,370 points • 676 views
0 votes
1 answer

Bitaps.com Error Code 10

Sep 7, 2018 in Blockchain by digger
 • 26,740 points • 767 views
0 votes
1 answer

Getting wrong result from SHA256 than what is expected

Sep 6, 2018 in Blockchain by slayer
 • 29,370 points • 1,674 views
0 votes
1 answer

Javascript mBTC to BTC conversion not working

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 1,030 views
0 votes
1 answer

python3 pip not working

Sep 4, 2018 in Blockchain by digger
 • 26,740 points • 1,112 views
0 votes
2 answers

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

Sep 4, 2018 in Blockchain by slayer
 • 29,370 points • 3,035 views
0 votes
2 answers

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

Sep 4, 2018 in Blockchain by digger
 • 26,740 points • 13,865 views
0 votes
1 answer

Web-scraping from Coinbase with Python (Pycharm)

Sep 4, 2018 in Blockchain by slayer
 • 29,370 points • 2,991 views
0 votes
1 answer

BitcoinJ generate address from private key

Sep 4, 2018 in Blockchain by digger
 • 26,740 points • 2,275 views
+1 vote
1 answer

Is there a way to send funds from a specific bitcoin address in a wallet?

Sep 3, 2018 in Blockchain by sabby
 • 4,370 points • 1,428 views
+2 votes
5 answers

How do I parse this JSON array in PHP?

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 6,335 views
0 votes
1 answer

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

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 1,025 views
0 votes
1 answer

PHP Bitcoin validate from form

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 1,496 views
0 votes
1 answer

Extract data from Json url result php

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 9,802 views
0 votes
1 answer

How to return Google protobuff object using python Django

Sep 3, 2018 in Blockchain by slayer
 • 29,370 points • 1,185 views
+1 vote
3 answers

How to convert timestamp to readable format in blockchain.info?

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 10,644 views
0 votes
1 answer

(0.7/0.001)%10 does not return 0

Aug 31, 2018 in Blockchain by slayer
 • 29,370 points • 895 views
0 votes
2 answers

sendmany bitcoin command problem in Dynamic PHP array

Aug 31, 2018 in Blockchain by digger
 • 26,740 points • 974 views
0 votes
1 answer

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

Aug 31, 2018 in Blockchain by slayer
 • 29,370 points • 3,481 views
0 votes
1 answer

Can I fork an existing blockchain?

Aug 31, 2018 in Blockchain by sabby
 • 4,370 points • 607 views
0 votes
2 answers

Coinbase-php createButton() throws 401 error

Aug 30, 2018 in Blockchain by slayer
 • 29,370 points • 1,060 views
0 votes
1 answer

Coinbase currency_exchange error

Aug 30, 2018 in Blockchain by slayer
 • 29,370 points • 1,040 views
0 votes
1 answer

Required parameter missing: account error

Aug 30, 2018 in Blockchain by digger
 • 26,740 points • 1,544 views
0 votes
1 answer

Bitcoin payment system not working

Aug 30, 2018 in Blockchain by digger
 • 26,740 points • 879 views
0 votes
1 answer

Problem while compiling BitcoinJS for browser

Aug 30, 2018 in Blockchain by slayer
 • 29,370 points • 1,324 views
0 votes
1 answer

Cant locate english.txt file while intalling Python Bitcoin module

Aug 30, 2018 in Blockchain by digger
 • 26,740 points • 803 views
0 votes
1 answer

Is there a way to get a trade history report from the Bitfinex API?

Aug 30, 2018 in Blockchain by sabby
 • 4,370 points • 1,680 views
0 votes
1 answer

How to generate litecoin using pycoin?

Aug 29, 2018 in Blockchain by slayer
 • 29,370 points • 2,036 views
0 votes
1 answer

How to access bitcoin Daemon from other services?

Aug 29, 2018 in Blockchain by slayer
 • 29,370 points • 1,959 views
0 votes
1 answer

Korbit api with python http.client

Aug 28, 2018 in Blockchain by slayer
 • 29,370 points • 1,423 views
0 votes
1 answer

Creating bitcoin address in ruby

Aug 28, 2018 in Blockchain by digger
 • 26,740 points • 763 views
0 votes
1 answer

403 forbidden error coinbase api

Aug 28, 2018 in Blockchain by slayer
 • 29,370 points • 2,638 views
0 votes
1 answer

Javascript Websocket subscribe to channel

Aug 28, 2018 in Blockchain by digger
 • 26,740 points • 4,526 views
0 votes
1 answer

How to receive JSON object via POST method?

Aug 28, 2018 in Blockchain by digger
 • 26,740 points • 870 views
0 votes
1 answer

How to create Bitcoin Address in PHP?

Aug 28, 2018 in Blockchain by sabby
 • 4,370 points • 5,455 views
0 votes
1 answer

Unable to unmarshal non-string into Go struct field SendTxArgs from of common.Address

Aug 28, 2018 in Blockchain by aryya
 • 7,460 points • 2,187 views
0 votes
1 answer

How to read file from subprocess.open in python?

Aug 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,464 views
+1 vote
1 answer

Getting Hash160 bitcoin address in python

Aug 24, 2018 in Blockchain by digger
 • 26,740 points • 3,838 views
0 votes
1 answer

How to use Proc/lamba returned from a method in Ruby?

Aug 24, 2018 in Blockchain by slayer
 • 29,370 points • 678 views
0 votes
1 answer

How to get amount of bitcoins in php?

Aug 24, 2018 in Blockchain by digger
 • 26,740 points • 1,031 views
0 votes
1 answer

Cant make transactions in bitcoind.

Aug 23, 2018 in Blockchain by digger
 • 26,740 points • 843 views
0 votes
1 answer

obfuscating and deobfuscating a string in JavaScript

Aug 23, 2018 in Blockchain by digger
 • 26,740 points • 1,353 views
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