Most voted questions in Blockchain

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1 answer

How to install Drizzle on Linux?

You can install drizzle on windows using ...READ MORE

Feb 28, 2019 in Blockchain by Raj
 • 1,155 views
0 votes
2 answers

How to install Ganache on Linux?

For linux you first need to download ...READ MORE

Jun 3, 2019 in Blockchain by Tushar
 • 190 points • 23,549 views
0 votes
1 answer

How to install metamask?

MetaMask is a browser plugin, you install ...READ MORE

Feb 28, 2019 in Blockchain by Lakhan
 • 2,972 views
0 votes
1 answer

How to install truffle on Linux?

You can install Truffle using npm(node package manager). ...READ MORE

Feb 28, 2019 in Blockchain by Rishab
 • 5,210 views
0 votes
1 answer

How to install Ethereum Blockchain on Linux?

To install Ethereum on Linux, open the ...READ MORE

Feb 28, 2019 in Blockchain by Kruti
 • 2,706 views
0 votes
0 answers

Cannot create genesis block?

When I try to create a genesis block ...READ MORE

Feb 27, 2019 in Blockchain by Tharindu
 • 170 points
edited Feb 28, 2019 by Omkar • 2,352 views
0 votes
0 answers

Cannot create crypto materiel with cryptogen command?

When I am creating crypto-materiel with cryptogen ...READ MORE

Feb 26, 2019 in Blockchain by Tharindu
 • 170 points • 2,260 views
0 votes
0 answers

Hyperledger Fabric: Errors in Deliver and Broadcast services

Hello, I have create successfully a multi-org, ...READ MORE

Feb 22, 2019 in Blockchain by Cha
 • 2,736 views
0 votes
1 answer

Geth command getting stuck

Creating new account should not take more ...READ MORE

Feb 15, 2019 in Blockchain by Raj
 • 1,054 views
0 votes
1 answer

Security threat principles for Blockchain

These are some steps to prevent/eliminate security threats ...READ MORE

Feb 13, 2019 in Blockchain by Omkar
 • 69,180 points • 1,496 views
0 votes
1 answer

What is 51% attack in Blockchain?

51% Attack is a situation where a group ...READ MORE

Feb 13, 2019 in Blockchain by Omkar
 • 69,180 points • 1,123 views
0 votes
1 answer

Why is off-chain transaction used?

Though on-chain transactions secure data, off-chain transactions ...READ MORE

Feb 13, 2019 in Blockchain by Omkar
 • 69,180 points • 997 views
0 votes
1 answer

What are off-chain transactions?

An off-chain transaction is the movement of ...READ MORE

Feb 13, 2019 in Blockchain by Omkar
 • 69,180 points • 1,615 views
0 votes
1 answer

Blockchain secret sharing

Blockchain has many methods to provide data ...READ MORE

Feb 12, 2019 in Blockchain by Omkar
 • 69,180 points • 1,684 views
0 votes
1 answer

Use of Blind Signature

Bling Signature is a form of digital signature in ...READ MORE

Feb 12, 2019 in Blockchain by Omkar
 • 69,180 points • 1,304 views
0 votes
1 answer

Not able to install ganache

There is an alternative method. You can ...READ MORE

Feb 8, 2019 in Blockchain by Omkar
 • 69,180 points • 2,802 views
0 votes
1 answer

Not able to set up the testrpc or geth client on ubuntu

The commands you have used installs Ethereum ...READ MORE

Feb 8, 2019 in Blockchain by Omkar
 • 69,180 points • 1,154 views
0 votes
2 answers

Truffle compile/migrate not working

In my case, use sudo command. truffle compile ...READ MORE

Feb 20, 2019 in Blockchain by byoul
 • 3,395 views
0 votes
0 answers

How can we write business data inside chaincode hyperleger fabric sdk java?

Feb 5, 2019 in Blockchain by Alam
recategorized Feb 5, 2019 by Vardhan • 1,009 views
0 votes
1 answer

How to select a single account in Ganache?

When you use web3, selecting a single ...READ MORE

Feb 5, 2019 in Blockchain by Omkar
 • 69,180 points • 2,101 views
0 votes
1 answer

How will I know the result of Fabric Transaction from application client?

When a transaction happens, a proposal response ...READ MORE

Feb 5, 2019 in Blockchain by Omkar
 • 69,180 points • 993 views
0 votes
1 answer

Does Hyperledger support Smart Contract like Ethereum?

Yes, but not exactly true. Ethereum uses ...READ MORE

Feb 4, 2019 in Blockchain by Omkar
 • 69,180 points • 1,108 views
0 votes
1 answer

Do the orderers see the transaction data in Hyperledger Fabric?

No, the orderers do not see the ...READ MORE

Feb 4, 2019 in Blockchain by Omkar
 • 69,180 points • 1,751 views
0 votes
1 answer

How to ensure data privacy in Hyperledger Fabric?

There are different ways data privacy in ...READ MORE

Jan 31, 2019 in Blockchain by Omkar
 • 69,180 points • 2,355 views
0 votes
1 answer

Does a hyperledger fabric application client need to connect to all peers?

No, it is not necessary to connect ...READ MORE

Jan 31, 2019 in Blockchain by Omkar
 • 69,180 points • 1,937 views
0 votes
1 answer

How many peers in fabric network need to endorse a transaction?

The number of peers required to endorse ...READ MORE

Jan 31, 2019 in Blockchain by Omkar
 • 69,180 points • 2,796 views
0 votes
0 answers

Cannot read property 'curve' of undefined, while running hyperledger fabric project.

Cannot read property 'curve' of undefined ...READ MORE

Jan 30, 2019 in Blockchain by shraddha
 • 1,958 views
0 votes
1 answer

Truffle deployer is not working

If you have deployed it before, then ...READ MORE

Jan 29, 2019 in Blockchain by Omkar
 • 69,180 points • 1,691 views
0 votes
1 answer

Cannot read property 'getBlock' of undefined

getBlock is used by web3 and to use it, ...READ MORE

Jan 29, 2019 in Blockchain by Omkar
 • 69,180 points • 1,861 views
0 votes
1 answer

Not able to install truffle

This error occurs when there are permission ...READ MORE

Jan 29, 2019 in Blockchain by Omkar
 • 69,180 points • 2,732 views
0 votes
1 answer

program can't start because cudart64_70.dll is missing

You might have missed out installing the ...READ MORE

Jan 29, 2019 in Blockchain by Omkar
 • 69,180 points • 1,498 views
0 votes
1 answer

Truffle does not open console, instead opens truffle.js file

When running truffle commands on Windows system, ...READ MORE

Jan 29, 2019 in Blockchain by Omkar
 • 69,180 points • 1,387 views
0 votes
2 answers

Truffle console error: Could not find suitable configuration file

First, initialize truffle project by running: $ truffle ...READ MORE

Feb 19, 2019 in Blockchain by John
 • 14,900 views
0 votes
1 answer

Private ethereum network account balance is zero

There are two reasons due to which ...READ MORE

Jan 28, 2019 in Blockchain by Omkar
 • 69,180 points • 2,569 views
0 votes
1 answer

Not able to connect nodes on Ethereum Private Network using bootnodes.

If you have created the private network ...READ MORE

Jan 27, 2019 in Blockchain by Omkar
 • 69,180 points • 2,297 views
0 votes
1 answer

Geth console can’t access smart contract

You are running commands using an object ...READ MORE

Jan 27, 2019 in Blockchain by Omkar
 • 69,180 points • 1,441 views
0 votes
1 answer

Ethereum transaction not getting Updated

You have done everything right except for ...READ MORE

Jan 27, 2019 in Blockchain by Omkar
 • 69,180 points • 1,119 views
0 votes
1 answer

Variable declaration problem in truffle console.

The reason it says “undefined” is because ...READ MORE

Jan 27, 2019 in Blockchain by Omkar
 • 69,180 points • 1,581 views
0 votes
1 answer

How to create custom accounts in testrpc?

Yes, you can use testrpc to do ...READ MORE

Jan 27, 2019 in Blockchain by Omkar
 • 69,180 points • 1,114 views
0 votes
0 answers

How can i get all the smart contract transaction details that have been done by a user in java web3j?

Jan 25, 2019 in Blockchain by Ashish Gopal Hattimare
 • 1,557 views
0 votes
1 answer

Calling Truffle Commands through a script

Seems like its due to async behavior ...READ MORE

Jan 25, 2019 in Blockchain by Omkar
 • 69,180 points • 1,539 views
0 votes
1 answer

How to run a Javascript in truffle console?

There are two ways to do this. You ...READ MORE

Jan 24, 2019 in Blockchain by Omkar
 • 69,180 points • 2,960 views
0 votes
1 answer

How to call a payable contract function from truffle console?

You can use a contract function, on ...READ MORE

Jan 24, 2019 in Blockchain by Omkar
 • 69,180 points • 2,917 views
0 votes
1 answer

Truffle dev says my function is not a function

It seems you are using truffle v5. ...READ MORE

Jan 24, 2019 in Blockchain by Omkar
 • 69,180 points • 2,515 views
0 votes
0 answers

WA: With the wings of the technology, constantly broadening the field of development

According to the history, in the Internet ...READ MORE

Jan 24, 2019 in Blockchain by anonymous
recategorized Jan 24, 2019 by Vardhan • 622 views
0 votes
0 answers

How does Atox debut in the center of cross-border payment industry?

Introduction: The “global village” created by the ...READ MORE

Jan 24, 2019 in Blockchain by anonymous
recategorized Jan 24, 2019 by Vardhan • 688 views
0 votes
1 answer

Solidity Error: Exceeds block gas limit

Remove the line norpc:true and change the ...READ MORE

Jan 24, 2019 in Blockchain by Omkar
 • 69,180 points • 3,203 views
0 votes
1 answer

Truffle can not find artifacts error

To deploy any project/ smart contract, you ...READ MORE

Jan 24, 2019 in Blockchain by Omkar
 • 69,180 points • 5,289 views
0 votes
1 answer

truffle migrate Error: “Cannot find module 'truffle-expect'”

Seems like you are missing some modules ...READ MORE

Jan 24, 2019 in Blockchain by Omkar
 • 69,180 points • 1,528 views
0 votes
1 answer

Unexpected error: Cannot provision contracts while instantiating the console

This is a common problem with truffle ...READ MORE

Jan 23, 2019 in Blockchain by Omkar
 • 69,180 points • 1,285 views
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