Trending questions in Blockchain

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getting error while starting Hyperleger fabric network on Aws server

Hey, @Nithin, It seems like you have stopped containers ...READ MORE

Mar 30 in Blockchain by Gitika
• 26,590 points
88 views
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0 answers
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How I can connect multiple physical machine with hyperledger fabric??

I want to connect my 3 computers ...READ MORE

Mar 12 in Blockchain by Md
• 120 points
66 views
0 votes
0 answers

Low_s canonical signature for bitcoin transaction

I have a transaction script and trying ...READ MORE

Mar 3 in Blockchain by anonymous
• 120 points
80 views
0 votes
0 answers

Is there any resource for hyper ledger fabric to learn?

Hi, I have searched all the google sites, ...READ MORE

Mar 2 in Blockchain by anonymous
• 120 points
80 views
0 votes
0 answers

Hyperledger Fabric: Average & Max Price FabCar

Hey, I'm using the fabcar project  (https://github.com/IBM/blockchain-application-using-fabric-java-sdk). I ...READ MORE

Feb 29 in Blockchain by pablobonet
• 120 points
67 views
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0 answers

Solidity: How i can return data from hash value ?

I have a solidity contract with two ...READ MORE

Feb 13 in Blockchain by simone
• 120 points
66 views
–1 vote
1 answer

how to npm install in node.js

This blog has a detailed step-wise explanation ...READ MORE

Mar 13 in Blockchain by Sirajul
• 50,550 points
91 views
+1 vote
2 answers

Error 500: mychannel has been migrated to new lifecycle. Chaincode instantiation error.

This error occured only because I had ...READ MORE

Jan 9 in Blockchain by Aditya
• 250 points
426 views
+1 vote
1 answer

how to creat a privaet blockchain network using ganache step by step process

This might help, check it out https://www.codementor.io/@swader/dev ...READ MORE

Jan 13 in Blockchain by Rhea
139 views
+1 vote
0 answers

How can i made a ledger-system using hyperledger.

Jan 12 in Blockchain by anonymous
• 170 points
97 views
+1 vote
0 answers

Error 500 during instantiation of chaincode for commercial-paper example. [closed]

I am following this tutorial on setting ...READ MORE

Jan 8 in Blockchain by Aditya
• 250 points

reshown Jan 9 by Kalgi 227 views
+2 votes
0 answers

Issue in Initialising the Blockchain

Whenever Iam executing the following command: /home/vashist/go-ethereum/build/bin/geth --datadir ...READ MORE

Jan 5 in Blockchain by vt
• 210 points
88 views
+2 votes
0 answers

Doubt regarding Initialising a Blockchain [closed]

Whenever Iam trying to run the command: /home/vashist/go-ethereum/build/bin/geth ...READ MORE

Jan 5 in Blockchain by vt
• 210 points

closed Jan 6 by Kalgi 47 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 in Blockchain by Kalgi
• 51,830 points
53 views
0 votes
0 answers
+1 vote
0 answers
+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
156 views
+1 vote
0 answers

creation of channel

I am facing in creation channel, please ...READ MORE

Nov 12, 2019 in Blockchain by anonymous
• 210 points
110 views
+1 vote
2 answers
+1 vote
1 answer

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

You get the revert error when a ...READ MORE

Dec 12, 2019 in Blockchain by Vivek
173 views
+1 vote
0 answers

how to create a voting Dapp ?!

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

Oct 6, 2019 in Blockchain by Aymen
• 130 points
215 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
105 views
+1 vote
3 answers

Removing double quotes from a string from JSON response in PHP

Just remove the json_encode call, and it should work: $resp ...READ MORE

Sep 12, 2018 in Blockchain by digger
• 26,660 points
10,146 views
+1 vote
4 answers

Installing Nodejs: sh: node: command not found error

You have to first install nodejs and ...READ MORE

Oct 22, 2018 in Blockchain by Omkar
• 69,000 points
9,208 views
+1 vote
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, 2019 in Blockchain by anonymous

edited Aug 19, 2019 by Omkar 111 views
+1 vote
2 answers

Not able to create new account in geth for private ethereum network

Looks like the account you are trying ...READ MORE

Dec 6, 2018 in Blockchain by Omkar
• 69,000 points
366 views
+1 vote
1 answer

hyperledger fabric: can't find package: github.com/pkg/errors in GOPATH or GOROOT

Hey @aiga, try to add the package ...READ MORE

Aug 5, 2019 in Blockchain by Esha
474 views
+2 votes
1 answer

Trying to instantiate chain code on channel

Looking at the error, it seems like ...READ MORE

Aug 1, 2019 in Blockchain by Jessica
265 views
+1 vote
1 answer

how to create channels with new orgs in Fabric? getting error: Attempted to include a member which is not in the consortium.

$: peer channel fetch config config_block.pb -o ...READ MORE

Jul 23, 2019 in Blockchain by Ayush
• 180 points
612 views
0 votes
1 answer

how to develop healthcare records using DApp on Blockchain?

Hi. As Healthcare will be a private ...READ MORE

Jul 26, 2019 in Blockchain by Esha
307 views
0 votes
0 answers

How to use mutual authentication without CA in hyperledger fabric

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

Jul 29, 2019 in Blockchain by behnaz
• 120 points
121 views
0 votes
0 answers

how to Build Bitcoin address and balance database?

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

Jul 24, 2019 in Blockchain by Raj
• 180 points
99 views
+1 vote
0 answers
+2 votes
1 answer

how to convert hash160 to bitcoin address in python?

Hey @Raj. I use the following script. ...READ MORE

Jul 12, 2019 in Blockchain by Tanisha
373 views
+1 vote
0 answers

Metamask popup on Server side (Express js) ?

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

Jul 15, 2019 in Blockchain by Dzaky
• 130 points
193 views
+1 vote
0 answers
0 votes
10 answers

How to solve gradle build failed error?

I migrated the project to a different ...READ MORE

Dec 7, 2018 in Blockchain by Rajat
12,223 views