Trending questions in Blockchain

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repository hyperledger/fabric-tools not found: does not exist or no pull access

You can manually pull this (and any ...READ MORE

Jul 3, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,003 views
+1 vote
1 answer

How can I add image into my Hyperledger instance

In your registry, you can Base64-ify your ...READ MORE

Jun 8, 2018 in Blockchain by aryya
 • 7,460 points • 1,995 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 • 2,510 views
0 votes
1 answer

In a non-cryptocurrency implementation of Blockchain, how to successfully mine a node?

Difficulty is a property of the blockchain, ...READ MORE

Jul 13, 2018 in Blockchain by Perry
 • 17,100 points • 522 views
0 votes
1 answer

What is the use of Ethereum's RLPx in Ethereum ecosystem?

So, RLPx is a protocol suite. It ...READ MORE

Jun 5, 2018 in Blockchain by Johnathon
 • 9,090 points • 2,164 views
0 votes
1 answer

How do i deploy a contract using bigchainDB?

Currently BigchainDB v.1.0.0 does not support Smart ...READ MORE

Jun 30, 2018 in Blockchain by Shashank
 • 10,400 points • 1,103 views
0 votes
1 answer

How to remove the previous BlockChain data?

One of the reasons preventing the blockchain ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,220 points • 938 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 • 804 views
+1 vote
2 answers

How can a public proof of work be secured?

Bitcoin was the first implementation of blockchain, ...READ MORE

May 9, 2018 in Blockchain by Johnathon
 • 9,090 points • 826 views
0 votes
1 answer

Can cryptocurrency work without blockchain technology?

Cryptocurrency do not compulsorily require blockchain.. What ...READ MORE

Jul 11, 2018 in Blockchain by slayer
 • 29,370 points • 580 views
0 votes
1 answer

WireTransaction type mismatch in Corda.

On M14. checkSignature should take a DigitalSignature.WithKey.. ...READ MORE

Jul 11, 2018 in Blockchain by digger
 • 26,740 points • 579 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 • 787 views
0 votes
1 answer

How to prevent the smart contract from being modified and deployed in the blockchain network?

To expand on Matthew's answer, each state ...READ MORE

Jul 6, 2018 in Blockchain by aryya
 • 7,460 points • 808 views
0 votes
1 answer

Error: t: Instance org.acme.seller.Car#HW7722 missing required field oldOwner

This error occurs if you have added a ...READ MORE

Jun 21, 2018 in Blockchain by Christine
 • 15,790 points
edited Jun 21, 2018 by Christine • 1,422 views
0 votes
0 answers

Blockchain.info wallet API callback

I am implementing blockchain.info wallet api to ...READ MORE

Jul 4, 2018 in Blockchain by sabby
 • 4,370 points • 885 views
0 votes
1 answer

How is computational and electricity wastage be avoided other than successful bitcoin miner?

What you are describing is an inherent ...READ MORE

Jul 14, 2018 in Blockchain by Shashank
 • 10,400 points • 453 views
0 votes
1 answer

How to control a malicious user in hyperledger fabric?

Fabric is an implementation of blockchain. Blockchain ...READ MORE

Jun 29, 2018 in Blockchain by Omkar
 • 69,220 points • 1,064 views
0 votes
1 answer

How can I use IBM blockchain to store data?

I would recommend looking at the Fabric ...READ MORE

Jul 3, 2018 in Blockchain by charlie_brown
 • 7,720 points • 914 views
0 votes
1 answer

Use of command : ./teardownFabric.sh

Note that if you've run the teardown ...READ MORE

Jul 6, 2018 in Blockchain by Perry
 • 17,100 points • 754 views
0 votes
1 answer

Hyperledge fabric v0.6 querying states between a period range

The Hyperledge fabric v0.6 does not provide ...READ MORE

Jul 4, 2018 in Blockchain by digger
 • 26,740 points • 838 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
 • 69,220 points • 881 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 • 853 views
0 votes
1 answer

How do I ensure that the token name is not redundant?

From my experience no, the trick is ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 506 views
0 votes
1 answer

"set RNG(RandomUtils.Random) before generating random numbers" error

Use the following code, you just have ...READ MORE

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 769 views
0 votes
1 answer

How to change "gasLimit" on Azure private blockchain?

Before deploying your network on Azure you ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,220 points • 853 views
+1 vote
2 answers

How can I use blockhain for storing a proof of a document such as an image?

Yes, you're right. Saving entire image in ...READ MORE

Aug 28, 2018 in Blockchain by hakusaro
 • 869 views
0 votes
1 answer

In hyperledger, how many number of ordering node can take up a transaction?

There are two types to implement ordering: 1. ...READ MORE

Jun 25, 2018 in Blockchain by Omkar
 • 69,220 points
edited Jun 28, 2018 by Omkar • 1,259 views
0 votes
1 answer

Hyperledger Fabric 1.0 how to maintain privacy from OSNs?

Yes, OSNs can see all the transaction ...READ MORE

Jul 2, 2018 in Blockchain by Omkar
 • 69,220 points • 865 views
0 votes
1 answer

Changing block time on Quorum.

They are two commands you can use ...READ MORE

Jun 27, 2018 in Blockchain by Omkar
 • 69,220 points • 1,120 views
0 votes
2 answers

How can I make transactions to a blockchain from a remote device(like a cell phone)?

You can do this by developing a ...READ MORE

Jun 27, 2018 in Blockchain by Omkar
 • 69,220 points • 1,022 views
0 votes
1 answer

How many people are mining bitcoins all over the world?

No, it's not possible to find out ...READ MORE

Jun 26, 2018 in Blockchain by Omkar
 • 69,220 points • 1,126 views
0 votes
1 answer

Can't import "blockchain.info" to Node.js.. Need help.

Aurelia is a client-side framework and blockchain ...READ MORE

Jun 27, 2018 in Blockchain by Omkar
 • 69,220 points • 1,049 views
0 votes
1 answer

Error while running make command using Fabric 1.0.6

It's a known issue in go 1.9.4: https://github.com/golang/go/issues/23739 While ...READ MORE

Jun 27, 2018 in Blockchain by Perry
 • 17,100 points • 1,063 views
+1 vote
3 answers

Is it possible to store data about arbitrary objects on the blockchain using smart contracts?

Basically you implement requested logic on by ...READ MORE

Aug 30, 2018 in Blockchain by Artem
 • 1,541 views
0 votes
1 answer

Handling connection of new nodes in Decentralized Chatting application.

Libp2p handles discovery and connection of nodes ...READ MORE

Jun 29, 2018 in Blockchain by Omkar
 • 69,220 points • 927 views
0 votes
1 answer

"Blocking waiting for file lock on the registry index"

Use the following command: rm -rf ~/.cargo/registry/index/* Or you ...READ MORE

Jun 18, 2018 in Blockchain by Christine
 • 15,790 points • 1,402 views
0 votes
1 answer

Geth account password on command line

You've got the following two ways to create ...READ MORE

May 29, 2018 in Blockchain by Perry
 • 17,100 points • 2,251 views
0 votes
1 answer

How to hold back KYC reward until the end of the ICO Crowdsale?

Your contract contains two functions - the payable function which ...READ MORE

Jul 4, 2018 in Blockchain by Christine
 • 15,790 points • 726 views
0 votes
1 answer

IBM Blockchain cant retrieving multiple rows from table

You can not use the older implementation ...READ MORE

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 651 views
0 votes
1 answer

How ordering nodes synchronize work?

To prevent time-based retention and prevent expiring ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,220 points • 722 views
0 votes
1 answer

"could not find test.properties" error in Hyperledger v1.0

There is no java sdk for your ...READ MORE

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 635 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
 • 15,790 points • 977 views
0 votes
1 answer

IRS demo Scheduled Event - InitiationHandler

The TODO you are looking for has ...READ MORE

Jul 6, 2018 in Blockchain by slayer
 • 29,370 points • 564 views
0 votes
1 answer

How to enable authentication in hyperledger Angular application

Try npm install -g passport-github READ MORE

Jun 16, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,425 views
0 votes
1 answer

How to make transactions without creating assets in multichain?

To transfer your Mycoins, you can make ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,220 points • 682 views
0 votes
1 answer

How to define different privacy for different users in Fabric 1.0?

The privacy restriction to particular peers in ...READ MORE

Jul 6, 2018 in Blockchain by digger
 • 26,740 points • 560 views
0 votes
1 answer

Generic put and get in hyperledger fabric

For this, you have to write a ...READ MORE

Jul 6, 2018 in Blockchain by digger
 • 26,740 points • 559 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 • 936 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 • 939 views
0 votes
1 answer

difference between running docker image in and outside of vagrant

Most people recommend to run docker containers ...READ MORE

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 564 views
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