Recent questions tagged blockchain

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1 answer

How to set token price in solidity?

Sep 25, 2018 in Blockchain by digger
 • 26,740 points • 9,520 views
0 votes
1 answer

Ethereum call contract method that emits an event, from another contract

Sep 25, 2018 in Blockchain by slayer
 • 29,370 points • 2,836 views
0 votes
1 answer

eth.getTransactionReceipt returns null

Sep 25, 2018 in Blockchain by digger
 • 26,740 points • 2,631 views
0 votes
1 answer

Call contract methods with web3 from newly created account

Sep 25, 2018 in Blockchain by slayer
 • 29,370 points • 6,823 views
0 votes
1 answer

Not able send ether to my smart contract's address

Sep 25, 2018 in Blockchain by digger
 • 26,740 points • 2,023 views
0 votes
1 answer

Why Gas Used By Txn is different when invoking the same function in the same smart contract？

Sep 25, 2018 in Blockchain by sabby
 • 4,370 points • 1,476 views
0 votes
1 answer

How to detect if an ethereum address is an ERC20 token contract?

Sep 25, 2018 in Blockchain by sabby
 • 4,370 points • 7,966 views
+2 votes
1 answer

Composer playground - issue on RHEL

Sep 24, 2018 in Blockchain by Renu353
 • 190 points • 1,732 views
0 votes
1 answer

Getting the length of public array variable (getter)

Sep 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,863 views
0 votes
4 answers

Unable to run truffle@2.1.2 migrate --network live. “Exceeds block gas limit”

Sep 24, 2018 in Blockchain by digger
 • 26,740 points • 2,558 views
0 votes
1 answer

ethminer failed to submit hashrate

Sep 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,197 views
0 votes
1 answer

How to manually create the instance of the contract in truffle?

Sep 24, 2018 in Blockchain by digger
 • 26,740 points • 3,313 views
0 votes
1 answer

Repeating transactions hangs - web3js, local geth

Sep 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,435 views
0 votes
2 answers

Is it possible to modify a variable value from another contract?

Sep 24, 2018 in Blockchain by digger
 • 26,740 points • 4,925 views
+1 vote
3 answers

What is the pattern for handling throw on a Solidity contract in tests

Sep 24, 2018 in Blockchain by slayer
 • 29,370 points • 2,515 views
0 votes
3 answers

UnhandledPromiseRejectionWarning: Error: The contract code couldn't be stored, please check your gas limit

Sep 24, 2018 in Blockchain by digger
 • 26,740 points • 2,243 views
0 votes
2 answers

Truffle migrate Error after run testrpc

Sep 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,274 views
0 votes
1 answer

Not able to send Ethereum transaction

Sep 24, 2018 in Blockchain by digger
 • 26,740 points • 1,116 views
+3 votes
1 answer

What is the difference between online and offline hyperledger composer?

Sep 21, 2018 in Blockchain by Renu353
 • 190 points • 1,432 views
0 votes
1 answer

Can't send transaction even if I use an example from official Ethereum webpage

Sep 21, 2018 in Blockchain by digger
 • 26,740 points • 1,767 views
0 votes
1 answer

Historical ethereum prices - Coinbase API

Sep 21, 2018 in Blockchain by slayer
 • 29,370 points • 2,362 views
0 votes
1 answer

Test ethereum Event Logs with truffle

Sep 21, 2018 in Blockchain by digger
 • 26,740 points • 2,463 views
0 votes
1 answer

Are there null like thing in solidity

Sep 21, 2018 in Blockchain by slayer
 • 29,370 points • 2,562 views
0 votes
1 answer

String concatenation in solidity?

Sep 21, 2018 in Blockchain by digger
 • 26,740 points • 3,739 views
0 votes
1 answer

What do I import for SHA encryption in Node.js?

Sep 21, 2018 in Blockchain by slayer
 • 29,370 points • 1,341 views
0 votes
1 answer

how loop through a JSON Array of bitcoin transaction data

Sep 21, 2018 in Blockchain by digger
 • 26,740 points • 1,114 views
0 votes
1 answer

Syntax Error running on Python

Sep 21, 2018 in Blockchain by slayer
 • 29,370 points • 936 views
0 votes
1 answer

Why do people prefer mining Litecoin over Bitcoin?

Sep 21, 2018 in Blockchain by digger
 • 26,740 points • 1,047 views
0 votes
1 answer

How to Query hdfs with Spark Sql

Sep 20, 2018 in Blockchain by digger
 • 26,740 points • 2,566 views
0 votes
1 answer

How to send JSON object from npm module to browser

Sep 20, 2018 in Blockchain by slayer
 • 29,370 points • 1,058 views
0 votes
1 answer

Blockchain ToBTC API not returning Php variable

Sep 20, 2018 in Blockchain by slayer
 • 29,370 points • 971 views
0 votes
1 answer

XMLHttpRequest is not defined while sending request to blockchain service via C#

Sep 20, 2018 in Blockchain by digger
 • 26,740 points • 1,743 views
+2 votes
1 answer

Has Blockchain made illegal activities easier?

Sep 20, 2018 in Blockchain by slayer
 • 29,370 points • 814 views
+2 votes
1 answer

What is Bitcoin Powered Electrical Outlet?

Sep 20, 2018 in Blockchain by digger
 • 26,740 points • 1,282 views
+3 votes
5 answers

What are the skills I need to have to be a Blockchain Developer?

Sep 20, 2018 in Career Counselling by slayer
 • 29,370 points • 2,744 views
+5 votes
6 answers

What is the salary for a Blockchain Developer?

Sep 20, 2018 in Career Counselling by digger
 • 26,740 points • 4,478 views
+1 vote
1 answer

Ethereum vs Hyperledger: Which is better for business networks?

Sep 20, 2018 in Blockchain by slayer
 • 29,370 points • 1,047 views
+1 vote
1 answer

Can't instantiate any chaincodes on peers of newly Added org

Sep 20, 2018 in Blockchain by sabby
 • 4,370 points • 2,833 views
0 votes
1 answer

How to extend Composer rest Server ?

Sep 20, 2018 in Blockchain by sabby
 • 4,370 points • 1,413 views
+8 votes
8 answers

Career in Blockchain

Sep 19, 2018 in Career Counselling by slayer
 • 29,370 points • 2,963 views
0 votes
1 answer

How to create an asset on Bigchaindb server using http call

Sep 19, 2018 in Blockchain by sabby
 • 4,370 points • 1,730 views
0 votes
1 answer

Public key encoding changes

Sep 19, 2018 in Blockchain by sabby
 • 4,370 points • 1,284 views
0 votes
1 answer

Docker on mac error message can't connect to Docker endpoint

Sep 19, 2018 in Blockchain by digger
 • 26,740 points • 2,524 views
0 votes
1 answer

Go- Chaincode function to display struct values

Sep 19, 2018 in Blockchain by slayer
 • 29,370 points • 2,065 views
0 votes
1 answer

How to Read multiple value from as JSON format from a external service and store in composer registry

Sep 19, 2018 in Blockchain by slayer
 • 29,370 points • 1,058 views
0 votes
1 answer

Nodejs: How to pass user form data into defined class

Sep 19, 2018 in Blockchain by slayer
 • 29,370 points • 1,375 views
0 votes
1 answer

JavaFX Location is not set error message

Sep 19, 2018 in Blockchain by digger
 • 26,740 points • 10,929 views
+1 vote
2 answers

Peer chaincode instantiation timeout expired

Sep 19, 2018 in Blockchain by slayer
 • 29,370 points • 3,892 views
0 votes
1 answer

Decorators in Hyperledger Composer Modeling Language

Sep 19, 2018 in Blockchain by digger
 • 26,740 points • 1,094 views
0 votes
1 answer

Sawtooth Javascript SDK "Batchlist rejected" error

Sep 19, 2018 in Blockchain by slayer
 • 29,370 points • 1,477 views
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