Trending questions in Blockchain

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How does the consensus mechanism work for a SaaS based blockchain?

Blockchain doesn't have the client-server architecture that ...READ MORE

Aug 1, 2018 in Blockchain by Christine
• 15,790 points
586 views
0 votes
1 answer

How blockchain hides it's HTML source?

When you click View Source, you see ...READ MORE

Jul 17, 2018 in Blockchain by Shashank
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1,226 views
0 votes
1 answer

How to check Bitcoin Wallet ?

This can be done using Extended Public ...READ MORE

Jul 13, 2018 in Blockchain by Perry
• 17,100 points
1,387 views
0 votes
1 answer

How to modify h2 port in Corda for IntelliJ?

When you use IntelliJ, the nodes are ...READ MORE

Jul 27, 2018 in Blockchain by slayer
• 29,370 points
779 views
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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
1,706 views
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1 answer

How is consensus reached when there are only two peers in Hyperledger Fabric?

The consensus is achieved in the ordering ...READ MORE

Jul 5, 2018 in Blockchain by digger
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1,728 views
0 votes
1 answer

What is transientMap in node.js and getTransient in chaincode?

TransientMap: TransientMap  contains data that might be used to ...READ MORE

Jul 13, 2018 in Blockchain by digger
• 26,740 points
1,376 views
0 votes
1 answer

how to modify smart contract template for self defined functionality

TL;DR; This code simply defines the start ...READ MORE

Aug 1, 2018 in Blockchain by aryya
• 7,460 points
554 views
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1 answer

How to develop peer to peer network in hyperledger fabric?

There are two ways you can do ...READ MORE

Jul 10, 2018 in Blockchain by digger
• 26,740 points
1,503 views
0 votes
1 answer

How to understand transaction verification in blockchain

They said it takes about 10 minutes ...READ MORE

Jul 17, 2018 in Blockchain by aryya
• 7,460 points
1,195 views
0 votes
1 answer

Error in playground while committing transaction on the ledger

1. Is this transaction is trying to ...READ MORE

Jul 27, 2018 in Blockchain by shweta
• 440 points
763 views
0 votes
1 answer

How can I integrate ethereum wallet on my site??

you can use web3 js API to ...READ MORE

May 29, 2018 in Blockchain by Perry
• 17,100 points
3,308 views
0 votes
1 answer

Hyperledger: How to test endorsement policy for the business network in multiple organizations?

Give the proposal responses you are receiving ...READ MORE

Jul 13, 2018 in Blockchain by Perry
• 17,100 points
1,345 views
0 votes
1 answer

How to use two different APIs to get combined results?

You can use nesting of function to ...READ MORE

Jul 31, 2018 in Blockchain by slayer
• 29,370 points
568 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
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5,074 views
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1 answer

How to interact with blockchain using Java web app?

You can interact with the blockchain using ...READ MORE

Jul 16, 2018 in Blockchain by digger
• 26,740 points
1,211 views
0 votes
1 answer

Unable to create a Mist connection to a private Ethereum Blockchain.

You could do the following: 1. Start another ...READ MORE

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

AWS multichain network, "Couldn't connect to the seed node" error

The error says "please check multichaind is ...READ MORE

Jul 9, 2018 in Blockchain by slayer
• 29,370 points
1,508 views
0 votes
1 answer

how to get modification history of asset?

You can use GetHistoryForKey() API as shown ...READ MORE

Jul 9, 2018 in Blockchain by digger
• 26,740 points
1,496 views
0 votes
1 answer

"const is reserved" parse error.

It could be an error because of ...READ MORE

Jul 6, 2018 in Blockchain by slayer
• 29,370 points
1,611 views
0 votes
1 answer

How to create own coins in Blockchain Ethereum wallet?

To create own coins you have to ...READ MORE

Jul 26, 2018 in Blockchain by slayer
• 29,370 points
738 views
0 votes
1 answer

Error in generating network sample.

I resolved this issue by downloading the ...READ MORE

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

Not able to deploy smart contract on testrpc.

I attached to geth using the following ...READ MORE

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

Getting error while trying to submit a transaction on hyperledger playground

not enough information as to how you ...READ MORE

Jul 17, 2018 in Blockchain by Shashank
• 10,400 points
1,108 views
0 votes
1 answer

How to connect javascript to solidity/ethereum?

You can connect javascript to solidity by ...READ MORE

Jul 11, 2018 in Blockchain by digger
• 26,740 points
1,366 views
0 votes
1 answer

How to get peer admin's certificate and key on Bluemix?

Follow the steps mentioned below: Create connection profile ~/.composer-connection-profiles/bmx-stage1-kubes/connection.json {  "name": ...READ MORE

Jul 16, 2018 in Blockchain by slayer
• 29,370 points
1,145 views
+4 votes
3 answers

What type of database is blockchain?

Blockchain is a distributed database. what makes ...READ MORE

Mar 30, 2018 in Blockchain by Christine
• 15,790 points
1,361 views
0 votes
1 answer

How can I build a hexadecimal block if I have all the needed information?

Here you have some articles about bitcoin ...READ MORE

Jul 21, 2018 in Blockchain by Christine
• 15,790 points
941 views
0 votes
1 answer

Can I use inherited contract in artifacts.require() statement?

Yes, this code will work just fine. ...READ MORE

Jul 27, 2018 in Blockchain by digger
• 26,740 points
643 views
0 votes
2 answers

How is a transaction public key related to original public?

The details like account balance, nonce etc., ...READ MORE

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

How can I retrieve to and from address in transaction directly from blockchain?

The spending conditions, i.e., who is able ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
• 10,400 points
1,324 views
0 votes
1 answer

How should I set my mac to install "hyperledger composer playground locally" ?

Install the pre-reqs https://hyperledger.github.io/composer/in ...READ MORE

Jul 21, 2018 in Blockchain by Christine
• 15,790 points
924 views
+3 votes
2 answers

How to run ethereumjs using Node.JS

You need to install testrpc globally on ...READ MORE

Mar 27, 2018 in Blockchain by ned_crew
• 1,610 points
1,456 views
0 votes
1 answer

How to set up Hyperledger Fabric v0.6 network without docker?

Hyperledger Fabric v0.6 does not provide any ...READ MORE

Jul 9, 2018 in Blockchain by slayer
• 29,370 points
1,392 views
0 votes
1 answer

Can a hyperledger composer work without fabric installed?

The pre-requisites section of hyperledger composer explains ...READ MORE

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

Error while adding participant to local application.

Do the following to solve the problem composer ...READ MORE

Jul 25, 2018 in Blockchain by digger
• 26,740 points
686 views
0 votes
1 answer

Ethereum Studio: Can't find Sandbox

The GitHub project site says that the image is ...READ MORE

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

how can i convert stub.GetTxTimestamp() to type string?

You can not directly convert the timestamp ...READ MORE

Jul 5, 2018 in Blockchain by digger
• 26,740 points
1,537 views
0 votes
1 answer

Can i transfer Kraken to Poloniex?

You can use withdrawFunds method from the ...READ MORE

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

Is {from: thesponsor, value: 10000000, gas: 3000000} considered as a transaction object?

Yes, {from: thesponsor, value: 10000000, gas: 3000000} ...READ MORE

Jul 25, 2018 in Blockchain by digger
• 26,740 points
668 views
0 votes
1 answer

Differences between the composer network and composer identity

'Composer Network' represents the business network entity. ...READ MORE

Jul 25, 2018 in Blockchain by Johnathon
• 9,090 points
664 views
0 votes
1 answer

Trying to setup a hyperledger but REST API is throwing error

Not sure if you are still looking ...READ MORE

Jul 25, 2018 in Blockchain by aryya
• 7,460 points
682 views
0 votes
1 answer

How blocks are linked in the Hyperledger Fabric blockchain?

The structure of block in Hyperledger Fabric ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
• 69,220 points
1,601 views
0 votes
1 answer

Display the state information to a list of participants dynamically.

There might be a bug in your ...READ MORE

Jul 24, 2018 in Blockchain by Christine
• 15,790 points
673 views
0 votes
1 answer

How do I get the total amount sent to an address?

If you are using web3JS you can ...READ MORE

Jul 19, 2018 in Blockchain by Johnathon
• 9,090 points
914 views
0 votes
1 answer

How to display State Information to a list of participants dynamically?

The if condition mentioned below will never ...READ MORE

Jul 23, 2018 in Blockchain by Omkar
• 69,220 points
764 views
0 votes
1 answer

What happens to the short chain when the nodes follow the long chain?

This situation occurs every day in the ...READ MORE

Jul 16, 2018 in Blockchain by digger
• 26,740 points
1,003 views
0 votes
1 answer

How proof work prevents rebuilding of blockchain?

POS has the same idea as POW. ...READ MORE

Jul 24, 2018 in Blockchain by Shashank
• 10,400 points
686 views
0 votes
1 answer

How i can use nodejs to watch transactions in bitcoin network?

you can use  const Socket = require('blockchain.info/Socket'); const mySocket ...READ MORE

Jul 9, 2018 in Blockchain by digger
• 26,740 points
1,299 views
0 votes
1 answer

What is CA (Authority) in Hyperledger Fabric?

Hyperledger fabric includes a modular Certificate Authority ...READ MORE

Jul 12, 2018 in Blockchain by shweta
• 440 points
1,160 views