Trending questions in Blockchain

+1 vote
1 answer

What are the differences between coin and token?

Coins are cryptocurrencies that are independent and ...READ MORE

Jul 18, 2018 in Blockchain by Sahil
 • 1,156 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 • 1,448 views
0 votes
1 answer

What happen to the mining fee for the blocks that are stale?

As I understood the forks of the ...READ MORE

Jun 4, 2018 in Blockchain by Shashank
 • 10,400 points • 854 views
0 votes
1 answer

What could be the best term to use for the collection of contracts in a .sol file?

module - don't think so. Because module ...READ MORE

Jun 2, 2018 in Blockchain by Shashank
 • 10,400 points • 912 views
0 votes
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 • 1,206 views
0 votes
1 answer

Account not listed in the Deploy Contract screen?

You need to get an initial allocated ...READ MORE

Jun 4, 2018 in Blockchain by Perry
 • 17,100 points • 750 views
0 votes
1 answer

Can I secretly add numbers in a smart contract and only add sum?

In am not sure about that, but ...READ MORE

May 30, 2018 in Blockchain by Shashank
 • 10,400 points • 965 views
0 votes
1 answer

What if Gas required in my program exceeds the limit of 3000000?

Going through your code, I noticed that  you ...READ MORE

May 29, 2018 in Blockchain by Perry
 • 17,100 points • 989 views
0 votes
1 answer

where is ethereum contract instance state stored???

Migrating the state to a new version ...READ MORE

Jun 2, 2018 in Blockchain by Shashank
 • 10,400 points • 777 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 • 1,119 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 • 1,676 views
0 votes
1 answer

How can I simulate private bitcoin network with random peer discovery?

You can model the whatever network you ...READ MORE

May 29, 2018 in Blockchain by Johnathon
 • 9,090 points • 877 views
+1 vote
1 answer

How can I connect to the specified nodes using IPFS?

You can actually connect to the specific ...READ MORE

Apr 25, 2018 in Blockchain by Christine
 • 15,790 points • 2,177 views
0 votes
1 answer

Can we say that Applications on hyperledger fabric are centralized?

In practice, you would expect every Org ...READ MORE

May 29, 2018 in Blockchain by Johnathon
 • 9,090 points • 755 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 • 1,259 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
 • 1,492 views
+1 vote
1 answer

Can Blocks be reorganized in the blockchain?

In practical applications, invalid transactions can not ...READ MORE

Jul 18, 2018 in Blockchain by Varun
edited Aug 3, 2018 by Omkar • 849 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 • 2,312 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 • 857 views
+1 vote
1 answer

How do I develop enterprise solutions using hyperledger composer?

With IBM cloud you can use containers, ...READ MORE

May 15, 2018 in Blockchain by Shashank
 • 10,400 points • 1,139 views
+1 vote
1 answer

What is the best way to search for an item in blockchain?

All transactions and records in blockchain are ...READ MORE

Apr 21, 2018 in Blockchain by Perry
 • 17,100 points • 2,191 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 • 849 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 • 809 views
+1 vote
1 answer

How does a miner get to know that a transaction is verified by all the nodes?

Contrary to the popular belief, it is ...READ MORE

Mar 27, 2018 in Blockchain by Johnathon
 • 9,090 points • 3,155 views
+1 vote
1 answer

How is ordering of transactions done in a block in hyperledger?

Consensus is the key concept for validating ...READ MORE

May 3, 2018 in Blockchain by Christine
 • 15,790 points • 1,523 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 • 951 views
+1 vote
1 answer

What'd be the best database to store data on blockchain?

To read and add data you can ...READ MORE

Apr 25, 2018 in Blockchain by Christine
 • 15,790 points • 1,786 views
+1 vote
1 answer

Can I mine a specific transaction on ethereum?

On a public ethereum network it is ...READ MORE

Apr 24, 2018 in Blockchain by Shashank
 • 10,400 points
edited Oct 6, 2021 by Sarfaraz • 1,845 views
+1 vote
1 answer

What happened on deploy, invoke and query in Hyperledger chaincode?

1. Deploy: During Deploy the chaincode is written onto ...READ MORE

Apr 26, 2018 in Blockchain by Christine
 • 15,790 points • 1,722 views
+1 vote
1 answer

Why is it so difficult to find a nonce while validating a block in Bitcoin?

A nonce is just "some arbitrary number". In ...READ MORE

Apr 11, 2018 in Blockchain by Perry
 • 17,100 points • 2,300 views
+1 vote
1 answer

How immutability is achieved in hyperledger fabric?

Since it is a private blockchain platform, ...READ MORE

Apr 21, 2018 in Blockchain by Perry
 • 17,100 points • 1,898 views
+1 vote
1 answer

Transaction using Blockchain wallet APi

Each transaction requires a fee to be ...READ MORE

Jun 19, 2018 in Blockchain by Perry
 • 17,100 points • 973 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 • 1,954 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 • 919 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 • 963 views
+1 vote
1 answer

Can we copy a smart contract?

While the contract is open-source, if you ...READ MORE

Apr 7, 2018 in Blockchain by Christine
 • 15,790 points • 2,307 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 • 987 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 • 866 views
+1 vote
1 answer

How do i generate corda nodes keystores in dev mode?

In Corda, the node will look into ...READ MORE

Apr 11, 2018 in Blockchain by Perry
 • 17,100 points • 2,077 views
+1 vote
1 answer

How can I connect my main Ethereum network to Web3.py using python?

All you need to do is enter ...READ MORE

Apr 17, 2018 in Blockchain by Perry
 • 17,100 points • 1,752 views
+2 votes
1 answer

Blockchain declining my API key and I cannot understand why.

It's quite easy. Request the API key using ...READ MORE

Apr 3, 2018 in Blockchain by Christine
 • 15,790 points • 2,298 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 • 1,012 views
+1 vote
1 answer

Is it possible to store blockchain in a sql or no-sql database?

Currently, following are the options to store ...READ MORE

Apr 21, 2018 in Blockchain by Perry
 • 17,100 points
edited Aug 9, 2018 by Omkar • 1,492 views
+1 vote
1 answer

What are the key functional differences between Hyperledger Composer and Fabric Javascript SDK?

Hyperledger Composer is an application development framework ...READ MORE

Apr 11, 2018 in Blockchain by Perry
 • 17,100 points • 1,882 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 • 777 views
+1 vote
1 answer

What are the differences between blockchain programming and our traditional programming languages?

On higher level comparison, there are quite ...READ MORE

Apr 18, 2018 in Blockchain by Shashank
 • 10,400 points • 1,554 views
+1 vote
1 answer

How to store state data in Ethereum blockchain?

You won't have to overwrite the whole ...READ MORE

Apr 25, 2018 in Blockchain by Shashank
 • 10,400 points • 1,253 views
+1 vote
1 answer

Error while deploying chaincode in IBM Blockchain. Please help.

Try stripping out the 'tree/master' portion of ...READ MORE

Apr 26, 2018 in Blockchain by Christine
 • 15,790 points • 1,122 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 • 852 views
+1 vote
1 answer

How can nodes interact with a Smart Contract?

If you are using Remix IDE to ...READ MORE

Apr 27, 2018 in Blockchain by Perry
 • 17,100 points • 1,003 views
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