Most viewed questions in Blockchain

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Hyperledger fabric: Unable to query result

In Hyperledger Fabric v1.0.0 your chaincode should confirm ...READ MORE

Oct 30, 2018 in Blockchain by Omkar
 • 69,180 points • 1,293 views
0 votes
1 answer

Hyperledger Composer rest server NPM versions

The Hyperledger Composer pre-requisites can be installed ...READ MORE

Jul 13, 2018 in Blockchain by Christine
 • 15,750 points • 1,293 views
0 votes
1 answer

How can I create a blockchain for keeping records?

​You can use an already existing Blockchain. ...READ MORE

Jun 27, 2018 in Blockchain by Christine
 • 15,750 points • 1,293 views
0 votes
1 answer

Can I swap an ERC-20 token with a Neo NEP5 token using a smart contract?

Every Blockchain has a separate administration. So, it ...READ MORE

Jun 4, 2018 in Blockchain by Perry
 • 17,100 points • 1,291 views
0 votes
1 answer

How can i copy block aspects in hyperledger fabric?

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

Jul 6, 2018 in Blockchain by digger
 • 26,740 points • 1,290 views
0 votes
0 answers

AtoX leads blockchain 4.0

Since Satoshi Nakamoto created bitcoin in 2008, ...READ MORE

Jan 21, 2019 in Blockchain by TONGZHENG
retagged Jan 24, 2019 by Omkar • 1,289 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 • 1,285 views
0 votes
1 answer

ERRO : Error trying to connect to local peer: grpc: timed out trying to connect

You need to use the correct port ...READ MORE

Sep 17, 2018 in Blockchain by slayer
 • 29,370 points • 1,285 views
0 votes
1 answer

Ethereum: Cloning cpp-ethereum from git.

Yes, you can only clone the additional ...READ MORE

Nov 19, 2018 in Blockchain by Omkar
 • 69,180 points • 1,284 views
0 votes
1 answer

How is running the asset_management.go different from running a simple chaincode like chaincode_example02.go

The chaincode workflow you mentioned is correct, ...READ MORE

Aug 3, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,284 views
0 votes
1 answer

Cant make transactions in bitcoind.

Fist you should encrypt your wallet: bitcoin-cli encryptwallet ...READ MORE

Aug 23, 2018 in Blockchain by slayer
 • 29,370 points • 1,283 views
0 votes
1 answer

Nodejs: How to pass user form data into defined class

This should do your work: // select the ...READ MORE

Sep 19, 2018 in Blockchain by digger
 • 26,740 points • 1,282 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
 • 15,750 points • 1,282 views
0 votes
1 answer

What is the mean Hash Encryption?

Hash encryption is a form of providing ...READ MORE

Dec 4, 2018 in Blockchain by Omkar
 • 69,180 points • 1,280 views
0 votes
1 answer

Hyperledger Composer: Query using relation

 you need to refer to your specific ...READ MORE

Nov 5, 2018 in Blockchain by Omkar
 • 69,180 points • 1,280 views
0 votes
1 answer

How to use Blockchain receive API without exchange rate?

Your code contains the amount in USD ...READ MORE

Aug 21, 2018 in Blockchain by Perry
 • 17,100 points • 1,280 views
0 votes
1 answer

Hyperledger Fabric: unable to check out source code from gerrit.hyperledger.org

There's something wrong with your SSH key. ...READ MORE

Nov 15, 2018 in Blockchain by Omkar
 • 69,180 points • 1,279 views
0 votes
1 answer

Hyperledger Composer: How to specify server name in composer connection profile?

To solve this problem you can use ...READ MORE

Nov 14, 2018 in Blockchain by Omkar
 • 69,180 points • 1,278 views
+3 votes
1 answer

What is the difference between online and offline hyperledger composer?

Hey @Renu353! Well, it's good that you ...READ MORE

Sep 21, 2018 in Blockchain by Omkar
 • 69,180 points • 1,277 views
0 votes
1 answer

Bitcoind server connection problem

Be sure to allow your server ip ...READ MORE

Aug 23, 2018 in Blockchain by digger
 • 26,740 points • 1,275 views
+1 vote
1 answer

What is blockchain apart from bitcoin?

Blockchain is a decentralized database where the ...READ MORE

Jul 9, 2018 in Blockchain by digger
 • 26,740 points • 1,274 views
0 votes
1 answer

Who is miners in smart contracts?

Proof of work is used as a ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,180 points • 1,274 views
0 votes
1 answer

Vertically centering text in a div

Try this code: .smallUnitBox { ...READ MORE

Sep 3, 2018 in Blockchain by digger
 • 26,740 points • 1,273 views
0 votes
1 answer

Why does Blockchain comes under Distributed Ledger Technology instead of being merely a replicated database?

1. Data in a database is generally subject ...READ MORE

Aug 10, 2018 in Blockchain by Christine
 • 15,750 points • 1,273 views
0 votes
1 answer

Can someone help me conceptualizing blockchain for supply chain demo?

I think you should take a step ...READ MORE

Jul 17, 2018 in Blockchain by Shashank
 • 10,400 points • 1,272 views
0 votes
1 answer

What exactly is BigChainDB?

Technically, BigChainDB internally uses RethinkDB as a ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 1,272 views
0 votes
1 answer

blockchain api payment module

No curly braces after your if statement. ...READ MORE

Apr 11, 2022 in Blockchain by Soham
 • 9,730 points • 1,271 views
0 votes
1 answer

Raw block with bitcoinj

This should work: BlockStore blockStore = new MyCustomBlockStore(NETWORK_PARAMETERS); blockStore.getChainHead(); blockChain ...READ MORE

Aug 28, 2018 in Blockchain by slayer
 • 29,370 points • 1,271 views
0 votes
2 answers

Why does not India consider Bitcoin as a legal tender?

to be specific there are few logical ...READ MORE

Jul 3, 2018 in Blockchain by Priyaj
 • 58,020 points • 1,269 views
0 votes
1 answer

What's the difference between ethereum and chain?

Ethereum is an open source blockchain platform ...READ MORE

Sep 12, 2018 in Blockchain by Perry
 • 17,100 points • 1,268 views
0 votes
1 answer

What is the difference between o and --> in Fabric Composer?

'o' indicates has-a relationship '-->' indicates pass by ...READ MORE

Aug 25, 2018 in Blockchain by Perry
 • 17,100 points • 1,268 views
0 votes
1 answer

Litecoin/Bitcoin how divide uint256 target value on difficulty in C++

This is the solution: void setdouble(double val) { ...READ MORE

Sep 12, 2018 in Blockchain by digger
 • 26,740 points • 1,267 views
0 votes
1 answer

Coinbase python APIError: Failed to send money

You might want to look at the response of ...READ MORE

Sep 5, 2018 in Blockchain by slayer
 • 29,370 points • 1,266 views
0 votes
1 answer

How to search inside List for a specific value?

You can amend your ORM wrapper such that ...READ MORE

Jun 27, 2018 in Blockchain by Christine
 • 15,750 points • 1,266 views
+1 vote
1 answer

Can we pass string values to the contract which holds bytes 32 only?

A string is not byte32 and so ...READ MORE

Aug 26, 2019 in Blockchain by Rina
 • 1,265 views
0 votes
1 answer

What path should I give for credentials in web3j?

WalletUtils.loadCredentials can be buggy, I would recommend ...READ MORE

Jun 27, 2018 in Blockchain by Shashank
 • 10,400 points • 1,265 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 • 1,265 views
+1 vote
2 answers

What is a blockchain and ethereum?

Some of the use-cases are: Healthcare Medical records are ...READ MORE

Aug 9, 2018 in Blockchain by Omkar
 • 69,180 points • 1,265 views
0 votes
1 answer

How do Ethereum node compete for blocks?

A lot of computing time is wasted. ...READ MORE

Sep 6, 2022 in Blockchain by Jojo
edited Mar 5 • 1,263 views
0 votes
1 answer

Bitcoin payment system not working

I found the problem, it was actually ...READ MORE

Aug 30, 2018 in Blockchain by slayer
 • 29,370 points • 1,262 views
+1 vote
1 answer

How is it possible to achieve privacy and confidentiality in smart contracts??

Any contract code written on the blockchain ...READ MORE

Apr 18, 2018 in Blockchain by Shashank
 • 10,400 points
edited Aug 7, 2018 by Omkar • 1,262 views
0 votes
1 answer

Naives Bayes Classifier for bag of vectorized sentences

The error is basically the [X_train] which ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,690 points • 1,261 views
+1 vote
1 answer

I have a doubt regarding the installation of Go Lang on my Linux system.

Hi @vt. This command should do the job: apt ...READ MORE

Jan 2, 2020 in Blockchain by Kalgi
 • 52,340 points • 1,261 views
0 votes
1 answer

Issue to run curl command in windows 7 Docker Quickstart Terminal

Actually, the issue is more likely that ...READ MORE

Jun 27, 2018 in Blockchain by aryya
 • 7,460 points • 1,261 views
0 votes
0 answers

hd wallet bip44 in js - how to create an address for a chain other than bitcoin?

I have a small script basically taken ...READ MORE

Mar 2, 2022 in Blockchain by Aditya
 • 7,680 points • 1,258 views
0 votes
1 answer

Websockets for Block.io API giving an error message

Try something like this: https://jsfiddle.net/bxw3v8c7/ <html> <script src="http://code.jquery.com/jquery-1.11.0.min.js"></script> <script> var btcs = ...READ MORE

Sep 10, 2018 in Blockchain by slayer
 • 29,370 points • 1,258 views
0 votes
1 answer

How do I implement Blockchain in my project

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

Jun 27, 2018 in Blockchain by Shashank
 • 10,400 points • 1,257 views
0 votes
1 answer

How Hyperledger projects are different from each other?

Hyperledger includes a range of business Blockchain ...READ MORE

Jul 12, 2018 in Blockchain by shweta
 • 440 points • 1,256 views
0 votes
1 answer

Windows not able to recognize Monax command

You probably know this already but support ...READ MORE

Jun 22, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,255 views
0 votes
1 answer

Kotlin Convert Bitcoin value into Satoshi Value

java.lang.NumberFormatException: For input string: "45,586" This means ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,730 points • 1,254 views
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