Unanswered questions in Blockchain

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how to create a voting Dapp ?!

Hello i am student and i wanna ...READ MORE

Oct 6 in Blockchain by Aymen
 • 120 points • 44 views
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0 answers

Can I change the network id in ganache GUI? Is it work for calling the functions in solidity?

Can I change the network id in ...READ MORE

Aug 16 in Blockchain by anonymous
edited Aug 19 by Omkar • 57 views
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0 answers

Error while sending a transaction from Web3py to a Smart Contract in Remix

Ok, so I am trying to make ...READ MORE

Aug 5 in Blockchain by Yaxir
edited Aug 5 by Omkar • 46 views
0 votes
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How to use mutual authentication without CA in hyperledger fabric

I want to use some certificateless mutual ...READ MORE

Jul 29 in Blockchain by behnaz
 • 120 points • 53 views
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how to Build Bitcoin address and balance database?

How to build Bitcoin Address and Balance ...READ MORE

Jul 24 in Blockchain by Raj
 • 180 points • 45 views
+1 vote
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I am trying to replace the fabric-CA with External-CA to work in keep fabric in production environment, in Hyper-ledger fabric any suggestions?

Hi  can, i know how you implemented ...READ MORE

Jul 23 in Blockchain by anonymous
edited Jul 23 • 34 views
+1 vote
0 answers

Metamask popup on Server side (Express js) ?

So I have this problem when i ...READ MORE

Jul 15 in Blockchain by Dzaky
 • 130 points • 80 views
+1 vote
0 answers

How to Set Condition on apistub.getstateByRange(startkey,endkey) in Go chaincode of hyperledger fabric

actually i have 2 structure in my ...READ MORE

Jul 14 in Blockchain by Malik
 • 56 views
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0 answers

LIVE PODCAST THREAD** (#2 Are Smart contracts really the Future?)

Hey guys this is the link to ...READ MORE

Jun 28 in Blockchain by Vardhan
 • 12,570 points • 34 views
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In R3 Corda I don't know to start the web server port in server?

In R3 Corda all the nodes are ...READ MORE

Jun 26 in Blockchain by anonymous
 • 109 views
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Migrations ran out of gas

I have unboxed pet-shop. Then inside the ...READ MORE

Jun 25 in Blockchain by anonymous
 • 88 views
0 votes
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How do we increase the amount of gas?

Jun 24 in Blockchain by Neha Agarwal
 • 54 views
0 votes
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how can i integrate fog computing simulation tools and Blockchain for research purpose

Jun 21 in Blockchain by anonymous
 • 120 points • 27 views
0 votes
0 answers

Network Parameter and additional node info file in R3 corda?

Is that network parameter and additional node ...READ MORE

Jun 21 in Blockchain by anonymous
 • 42 views
0 votes
0 answers

Couldn't find network parameters file and compatibility zone wasn't configured/isn't reachable

After ran this command java -jar network-bootstrapper-VERSION.jar --dir <nodes-root-dir>.The files is generated.After ...READ MORE

Jun 19 in Blockchain by anonymous
 • 100 views
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0 answers

Is there any API for ether sent transaction in ethereum without using web3.js

I want to do a transaction (sent ...READ MORE

Jun 17 in Blockchain by vishal tyagi
 • 37 views
0 votes
0 answers

Can't call contract function in Remix in Web3 provider mode, but it works in Javascript VM

A simple contract for addition, an error ...READ MORE

Jun 15 in Blockchain by XHQ
 • 56 views
0 votes
0 answers

Corda - How to check if counter party nodes are running?

0 I have build a CorDapp using "Yo!CorDapp" ...READ MORE

May 28 in Blockchain by Sriram
 • 160 points • 52 views
0 votes
0 answers

Corda - How to check if counter party nodes are running?

I have build a CorDapp using "Yo!CorDapp" ...READ MORE

May 27 in Blockchain by Sriram
 • 160 points • 21 views
0 votes
0 answers

What will happen to the transactions with unconsumed states when modified contract is integrated in the network?

I have build a CorDapp using "Yo!CorDapp" ...READ MORE

May 22 in Blockchain by Sriram
 • 160 points • 49 views
0 votes
0 answers

When running the enrollAdmin.js i get this error:

Wallet path: C:\Users\Nibir Hira\go\src\github.com\hyperledger\fabric-samples\fa bcar\javascript\wallet 2019-03-29T04:07:44.902Z - error: [FabricCAClientService.js]: ...READ MORE

Mar 29 in Blockchain by anonymous
recategorized Mar 29 by Omkar • 251 views
0 votes
0 answers

How to set chaincode path in Hyperledger Fabric in fabric.sh file

i set the path to chaincode in ...READ MORE

Mar 23 in Blockchain by Malik
retagged Mar 25 by Omkar • 161 views
0 votes
0 answers

how to add path of chain code in hyperledger fabric in startfabric.sh

#!/bin/bash # # Copyright IBM Corp All Rights Reserved # # ...READ MORE

Mar 17 in Blockchain by anonymous
 • 178 views
0 votes
0 answers

Error: Unexpected token o in JSON at position 1

I have been working with Interacting a ...READ MORE

Mar 6 in Blockchain by saeedi
 • 120 points
edited Mar 6 by Omkar • 427 views
0 votes
0 answers

Cannot create genesis block?

When I try to create a genesis block ...READ MORE

Feb 27 in Blockchain by Tharindu
 • 160 points
edited Feb 28 by Omkar • 230 views
0 votes
0 answers

Cannot create crypto materiel with cryptogen command?

When I am creating crypto-materiel with cryptogen ...READ MORE

Feb 26 in Blockchain by Tharindu
 • 160 points • 93 views
0 votes
0 answers

Hyperledger Fabric: Errors in Deliver and Broadcast services

Hello, I have create successfully a multi-org, ...READ MORE

Feb 22 in Blockchain by Cha
 • 311 views
0 votes
0 answers

How can we write business data inside chaincode hyperleger fabric sdk java?

Feb 5 in Blockchain by Alam
recategorized Feb 5 by Vardhan • 72 views
0 votes
0 answers

Cannot read property 'curve' of undefined, while running hyperledger fabric project.

Cannot read property 'curve' of undefined ...READ MORE

Jan 30 in Blockchain by shraddha
 • 329 views
0 votes
0 answers

WA: With the wings of the technology, constantly broadening the field of development

According to the history, in the Internet ...READ MORE

Jan 24 in Blockchain by anonymous
recategorized Jan 24 by Vardhan • 37 views
0 votes
0 answers

How does Atox debut in the center of cross-border payment industry?

Introduction: The “global village” created by the ...READ MORE

Jan 24 in Blockchain by anonymous
recategorized Jan 24 by Vardhan • 31 views
0 votes
0 answers

AXC: Conform to the trend of the times and to be a pioneer in the development of the industry

On January 2, 2019, Ali Baba DAMO ...READ MORE

Jan 23 in Blockchain by anonymous
retagged Jan 23 by Vardhan • 47 views
0 votes
0 answers

AtoX leads blockchain 4.0

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

Jan 21 in Blockchain by TONGZHENG
retagged Jan 24 by Omkar • 65 views
0 votes
0 answers

How do I identify invoking peer/organisation inside Hyperledger Fabric V1.0 chaincode?

Is there any way to know the ...READ MORE

Aug 22, 2018 in Blockchain by Christine
 • 15,790 points • 63 views
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0 answers

Identification of purchased product

I have created coins on test network.Now ...READ MORE

Jul 5, 2018 in Blockchain by charlie_brown
 • 7,720 points • 36 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
 • 4,350 points • 181 views
0 votes
0 answers

What happens to the ethereum mempool transaction of uncle and fork nodes

I understand that in Bitcoin network when ...READ MORE

Apr 7, 2018 in Blockchain by Christine
 • 15,790 points • 106 views

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