Most viewed questions in Blockchain

0 votes
1 answer

How to create a custom fabric environment on ibm blockchain platform VScode

At the moment you can't use the ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
 • 9,680 points • 911 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 • 911 views
0 votes
1 answer

HyperledgerFabric : *SampleChaincode does not implement shim.Chaincode error

The reason you are getting this error ...READ MORE

Oct 29, 2018 in Blockchain by Omkar
 • 69,220 points • 911 views
+1 vote
0 answers

How can i made a ledger-system using hyperledger.

Jan 12, 2020 in Blockchain by anonymous
 • 190 points • 909 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
 • 69,220 points • 908 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 • 908 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 • 907 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
 • 69,220 points • 906 views
0 votes
1 answer

Hyperledger Composer error in transaction

Check that you have declare the function ...READ MORE

Jul 21, 2018 in Blockchain by shweta
 • 440 points • 906 views
+1 vote
1 answer

Does the client know which peer approves/supports its transaction in Hyperledger Fabric?

Yes, client is aware of the endorsing ...READ MORE

Jun 27, 2018 in Blockchain by Omkar
 • 69,220 points • 906 views
0 votes
0 answers

How to get Bitcoin value for corresponding USD value in ASP.NET C#?

I want to get the Bitcoin value ...READ MORE

Mar 1, 2022 in Blockchain by Soham
 • 9,710 points • 904 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
 • 69,220 points • 904 views
+3 votes
1 answer

When I ran truffle init, I got this error:

Hey there @Davidala! The error says that it ...READ MORE

Oct 29, 2018 in Blockchain by Omkar
 • 69,220 points • 904 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 • 904 views
0 votes
1 answer

Problem monitoring geth instance

Try the following command: geth monitor --attach ./chain-data/geth.ipc ...READ MORE

Jan 22, 2019 in Blockchain by Omkar
 • 69,220 points • 903 views
0 votes
1 answer

Ubuntu "get attach" command failed

The geth.ipc gets created when Geth is succesfully launched.It ...READ MORE

Sep 7, 2018 in Blockchain by Surya
 • 900 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 • 900 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 • 899 views
0 votes
1 answer

Are "unconfirmed transactions" of a blockchain's memory pool spread over nodes?

Yes, as soon as a transaction is ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
 • 9,680 points • 898 views
0 votes
1 answer

How to swap an Ethereum ERC-20 and Neo NEP5 token with a smart contract?

Each blockchain is its own separated administration. ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 897 views
+1 vote
1 answer

Where does hyperledger stores stores assets and participants??

There are two places where hyperledger stores ...READ MORE

Apr 18, 2018 in Blockchain by Shashank
 • 10,400 points • 897 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 • 897 views
0 votes
1 answer

Why do we not use Istanbul Byzantine Fault Tolerance (IBFT) in Public Blockchains?

The use of the IBFT consensus involves ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 895 views
0 votes
1 answer

How to change default network port in Multichain?

Yes, you can the default port. You ...READ MORE

Mar 1, 2019 in Blockchain by Omkar
 • 69,220 points • 895 views
0 votes
1 answer

How to run Meteor insert within a Fiber?

Just replace events.watch(function(error, event) { ... }); with events.watch(Meteor.bindEnvironment(function(error, event) ...READ MORE

Sep 28, 2018 in Blockchain by slayer
 • 29,370 points • 895 views
0 votes
1 answer

Nodejs cannot access Hyperledger composer shows error

1) you need Node 8.9.x or higher ...READ MORE

Oct 23, 2018 in Blockchain by Perry
 • 17,100 points • 892 views
0 votes
1 answer

Fabric composer integration with Bluemix blockchain service

You can use Composer with the Bluemix ...READ MORE

Aug 3, 2018 in Blockchain by charlie_brown
 • 7,720 points • 892 views
0 votes
1 answer

Hyperledger Fabric: How to retrieve success payload via nodejs client?

The channel.sendTransactionProposal generates a Response object You ...READ MORE

Oct 30, 2018 in Blockchain by Omkar
 • 69,220 points • 891 views
0 votes
1 answer

Error while Querying System Chaincode.

Do not interact directly with the ledger.. ...READ MORE

Jul 12, 2018 in Blockchain by digger
 • 26,740 points • 891 views
0 votes
1 answer

Are Ethereum contract function securable?

The reason is that you are using ...READ MORE

Oct 30, 2018 in Blockchain by Christine
 • 15,790 points • 890 views
0 votes
1 answer

Unknown MSP DEFAULT error query chaincode

./byfn.sh -m up After running the above command, ...READ MORE

Jun 8, 2018 in Blockchain by Christine
 • 15,790 points • 890 views
0 votes
1 answer

Implementing Giveaways in Blockchain

I have found a similar question. The ...READ MORE

Aug 17, 2018 in Blockchain by digger
 • 26,740 points • 889 views
0 votes
1 answer

Current JSON package to retrieve info from links

public static String btcvalue(){ ...READ MORE

Sep 6, 2018 in Blockchain by slayer
 • 29,370 points • 887 views
0 votes
1 answer

Hyperledger Composer: How to save deployments?

You are losing your deployments probably because ...READ MORE

Oct 29, 2018 in Blockchain by Omkar
 • 69,220 points • 885 views
0 votes
1 answer

Hyperledger Composer: Error trying to instantiate composer runtime.

It looks like a problem with composer-cli.  A ...READ MORE

Oct 26, 2018 in Blockchain by Omkar
 • 69,220 points • 885 views
0 votes
1 answer

How to handle Overlapping of array objects in node js

Try this code, may be it works for ...READ MORE

Sep 18, 2018 in Blockchain by digger
 • 26,740 points • 885 views
0 votes
1 answer

Send message between two blockchain nodes

The answer is Blockchain as at the ...READ MORE

Mar 24, 2022 in Blockchain by Rahul
 • 9,680 points • 884 views
0 votes
1 answer

First block of bitcoin block gives empty string

Most likely the first byte is not ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,370 points • 884 views
0 votes
1 answer

Can I execute distributions in ERC20 tokens on a later stage?

It is best to have a claim ...READ MORE

Nov 2, 2018 in Blockchain by Prerna
 • 1,960 points • 883 views
0 votes
1 answer

Bitcoin transaction “"You must provide a recipient address" ” error.

You need an account with BlockChain to ...READ MORE

Aug 20, 2018 in Blockchain by digger
 • 26,740 points • 883 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 • 882 views
0 votes
1 answer

Error connecting due to rpc error

In the previous version, this problem was ...READ MORE

Jul 6, 2018 in Blockchain by slayer
 • 29,370 points • 882 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 • 882 views
0 votes
1 answer

Bitaps.com Error Code 10

Mistake in word qouta. Need quota $rules = [ ...READ MORE

Sep 7, 2018 in Blockchain by slayer
 • 29,370 points • 881 views
0 votes
1 answer

Getting world state by value

Worldstate level storage works at the {key,value} ...READ MORE

Jun 27, 2018 in Blockchain by aryya
 • 7,460 points • 881 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 • 881 views
0 votes
1 answer

Cant query in Hyperledger Composer

There's a mistake in your WHERE statement. ...READ MORE

Oct 26, 2018 in Blockchain by Omkar
 • 69,220 points • 880 views
0 votes
1 answer

Bitcoin ticker + fontawesome

Font Awesome arrow up is displayed like ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 879 views
0 votes
1 answer

How do I change default service names in Corda Demobench?

Each Corda node individually advertises the services ...READ MORE

Aug 14, 2018 in Blockchain by Perry
 • 17,100 points • 878 views
+1 vote
0 answers

not getting real transaction ID only getting temp-transaction ID in fabric-sdk

I am using below code for submitting ...READ MORE

Nov 14, 2019 in Blockchain by laxman
 • 130 points • 877 views
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