Most voted questions in Blockchain

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1 answer

how do we register our assets in hyperledger?

First of all, the chaincode (or smart ...READ MORE

May 26, 2018 in Blockchain by Johnathon
• 9,090 points
897 views
0 votes
1 answer

How can I communicate with peer to peer in a hyperledger fabric local network?

The peers communicate among them through the ...READ MORE

May 24, 2018 in Blockchain by Johnathon
• 9,090 points
1,725 views
0 votes
1 answer

Can there be different smart contract with same logic or a master contract with all configuration?

It depends on the complexity of the ...READ MORE

May 23, 2018 in Blockchain by Johnathon
• 9,090 points
490 views
0 votes
1 answer

Why do we use virtual machine for running smart contracts.

You can write smart contracts in any ...READ MORE

May 23, 2018 in Blockchain by Johnathon
• 9,090 points
695 views
0 votes
1 answer

How Bitcoin wallet find unspent transaction output(UTXOs)?

The wallet apps are connected to the ...READ MORE

May 22, 2018 in Blockchain by Shashank
• 10,400 points
1,044 views
0 votes
1 answer

Can someone pls explain the hyperledger consensus?

The multiple peers determine the validity of ...READ MORE

May 22, 2018 in Blockchain by Shashank
• 10,400 points
393 views
0 votes
1 answer

Does the contract hosting account owns ether that is being sent to contract too??

I dont think so. I've done a ...READ MORE

May 22, 2018 in Blockchain by Johnathon
• 9,090 points
439 views
0 votes
1 answer

What happens to the blockchain currency when nodes gets disconnected?

After the resync of the network, the ...READ MORE

May 22, 2018 in Blockchain by Johnathon
• 9,090 points
1,197 views
0 votes
1 answer

How can I sync geth and testrpc private nodes locally?

node running on testrpc cannot be connected ...READ MORE

May 17, 2018 in Blockchain by Shashank
• 10,400 points
529 views
0 votes
1 answer

How do I use hyperledger fabric blockchain to build my own application?

To use fabric I would recommend you ...READ MORE

May 17, 2018 in Blockchain by Johnathon
• 9,090 points
906 views
0 votes
2 answers

How to set permissions within a blockchain?

There are blockchains that allow defining permissions. Hyperledger ...READ MORE

Aug 28, 2018 in Blockchain by Michael
851 views
0 votes
1 answer

Why am I not getting 100 ethers in my metamask account?

Sorry that you're having this problem. To ...READ MORE

Jun 14, 2018 in Blockchain by Christine
• 15,790 points
2,252 views
0 votes
1 answer

How a transaction validity is verified in blockchain?

Blockchain has the records the of all ...READ MORE

May 11, 2018 in Blockchain by Johnathon
• 9,090 points
503 views
0 votes
2 answers

Can a blockchain be used to verify or store a document on the blockchain?

This link could help you. READ MORE

Aug 28, 2018 in Blockchain by Suman
1,329 views
0 votes
1 answer

How is storage space handled in hyperledger peer?

Every transaction is not stored by every ...READ MORE

May 11, 2018 in Blockchain by anonymous
1,071 views
0 votes
1 answer

How do I submit multiple transaction in a block?

There can only be one block at ...READ MORE

May 10, 2018 in Blockchain by Johnathon
• 9,090 points
1,268 views
0 votes
1 answer

Can a blockchain be used to verify or store a document on the blockchain?

Bitcoin is decentralized payment syatem. It was ...READ MORE

May 10, 2018 in Blockchain by Johnathon
• 9,090 points
636 views
0 votes
1 answer

Do I need to create a new validating peer once a new user join my network.?

Hyperledger has evolved a lot. The updated ...READ MORE

May 10, 2018 in Blockchain by Johnathon
• 9,090 points
499 views
0 votes
1 answer

How feasible is it to use one way cryptographic hash function?

you can use the ouput hash function ...READ MORE

May 8, 2018 in Blockchain by Johnathon
• 9,090 points
408 views
0 votes
1 answer

How to check the data integrity logic in proof of work mining?

The proof of work is actually works ...READ MORE

May 8, 2018 in Blockchain by Johnathon
• 9,090 points
597 views
0 votes
1 answer

What technologies can be used to build private blockchain technologies?

Blockchain could be private or public. There ...READ MORE

May 8, 2018 in Blockchain by Robbie
347 views
0 votes
1 answer

Why is it downloading the blocks when I am trying to deploy the ethereum private network?

Once you have installed the Ethereum wallet, ...READ MORE

May 3, 2018 in Blockchain by Shashank
• 10,400 points
434 views
0 votes
1 answer

How can we decrypt a transaction payload when confidentiality is on?

You can try the following: you can only ...READ MORE

May 3, 2018 in Blockchain by Shashank
• 10,400 points
620 views
0 votes
1 answer

How can I deploy a HelloWorld contract on my testrpc network?

The problem lies in the command: truffle migrate Your truffle migrate command ...READ MORE

Apr 27, 2018 in Blockchain by Perry
• 17,100 points

edited Aug 10, 2018 by Omkar 2,429 views
0 votes
2 answers

Why is network already up to date while trying to deploy a contract on truffle?

I guess you have ganache running already ...READ MORE

Apr 24, 2018 in Blockchain by Shashank
• 10,400 points
4,108 views
0 votes
1 answer

Is it that new bitcoins gets created with the every block mined??

Bitcoin mining means validation of a block ...READ MORE

Apr 21, 2018 in Blockchain by Perry
• 17,100 points
557 views
0 votes
1 answer

What happens if the controller nodes in Corda shuts down, will other nodes function independently?

If the network map goes offline nodes ...READ MORE

Apr 21, 2018 in Blockchain by Perry
• 17,100 points
601 views
0 votes
1 answer

How pbft is being used in blockchain?

PBFT can tolerate byzantine failures. For tolerating ...READ MORE

Apr 21, 2018 in Blockchain by Perry
• 17,100 points
566 views
0 votes
1 answer

Where to store the data of decentralized applications??

Every blockchain is developed in a differnet ...READ MORE

Apr 21, 2018 in Blockchain by Perry
• 17,100 points
508 views
0 votes
1 answer

In a Blockchain, how difficult is it to modify the third to last block?

Technically, it's not difficult at all, all ...READ MORE

Apr 20, 2018 in Blockchain by Christine
• 15,790 points
824 views
0 votes
1 answer

How can i create a simple P2P network on a blockchain?

To develop your own cryptocurrency, you need ...READ MORE

Apr 20, 2018 in Blockchain by Christine
• 15,790 points
1,708 views
0 votes
1 answer

How do I query Blockchain bitcoin locally?

You could use json RPC provided by ...READ MORE

Apr 19, 2018 in Blockchain by Christine
• 15,790 points
1,336 views
0 votes
1 answer

What do we mean by a validating peer?

The term validating peer was used in ...READ MORE

Apr 19, 2018 in Blockchain by Christine
• 15,790 points
872 views
0 votes
1 answer

Transaction cost variations in one contract vs. multiple contracts

You are free to choose whatever works ...READ MORE

Apr 19, 2018 in Blockchain by Christine
• 15,790 points
602 views
0 votes
1 answer

How can I write complex decentralized applications on Etheruem?

Well, if you want to create a ...READ MORE

Apr 18, 2018 in Blockchain by Perry
• 17,100 points
479 views
0 votes
1 answer

How secure is to implement blockchain at a smaller scale??

Blockchain relies on the number of nodes ...READ MORE

Apr 18, 2018 in Blockchain by Perry
• 17,100 points
499 views
0 votes
1 answer

Is it possible to setup private ethereum network for creating applications??

yes, ethereum is an open source platform ...READ MORE

Apr 18, 2018 in Blockchain by Christine
• 15,790 points
545 views
0 votes
1 answer

Distinguish between private blockchains and hashgraph, ripple

Most of the distributed databases are fault ...READ MORE

Apr 18, 2018 in Blockchain by Christine
• 15,790 points
340 views
0 votes
1 answer

What is the difference between if() and require() statement in solidity??

If() and require() have separate functions and ...READ MORE

Apr 18, 2018 in Blockchain by Shashank
• 10,400 points
4,768 views
0 votes
1 answer

Can a hacker change data of a smart sontract without call contract function?

A contract's content cannot be changed internally. ...READ MORE

Apr 8, 2018 in Blockchain by Shashank
• 10,400 points
462 views
0 votes
1 answer

What are the differences between tendermint and hashgraph?

Hashgraph uses Superior distributed ledger technology. Hashgraph ...READ MORE

Apr 8, 2018 in Blockchain by Shashank
• 10,400 points
813 views
0 votes
0 answers

What happens to the ethereum mempool transaction of uncle and fork nodes

I understand that in Bitcoin network when ...READ MORE

Apr 8, 2018 in Blockchain by Christine
• 15,790 points
811 views
0 votes
1 answer

If a different chaincode deployed a world state variable, is it still accessible by another chaincode?

No, variables stored by some chaincode (A) ...READ MORE

Apr 4, 2018 in Blockchain by Perry
• 17,100 points
587 views
0 votes
1 answer

How to create a new wallet on a blockchain?

Firstly, you need to have a clear ...READ MORE

Apr 4, 2018 in Blockchain by Christine
• 15,790 points
1,104 views
0 votes
1 answer

Connection failed to Ethereum Ropsten Testnet network.

 It looks like your node isn't syncing ...READ MORE

Mar 27, 2018 in Blockchain by Christine
• 15,790 points
1,466 views
0 votes
1 answer

How can i read headers of blockchain in multichain?

You could use a recent feature known ...READ MORE

Mar 26, 2018 in Blockchain by Perry
• 17,100 points
552 views
0 votes
1 answer

How to make sure transactions take no fee in a private Ethereum blockchain?

In a private ethereum network you have ...READ MORE

Mar 26, 2018 in Blockchain by Christine
• 15,790 points

edited Mar 26, 2018 by Christine 1,354 views
–1 vote
1 answer

how to npm install in node.js

This blog has a detailed step-wise explanation ...READ MORE

Mar 13, 2020 in Blockchain by Sirajul
• 59,230 points
571 views
–1 vote
2 answers

Can I add extra miners to an Ethereum Private Network?

To add miners, add peers. Then with ...READ MORE

Feb 19, 2019 in Blockchain by Rahul
1,078 views
–1 vote
1 answer

Problem adding peers to Ethereum private network

Seems like you have not created the ...READ MORE

Jan 23, 2019 in Blockchain by Omkar
• 69,210 points
2,240 views