Recent questions tagged blockchain

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1 answer

How to track changes of an object in exonum?

Jul 23, 2018 in Blockchain by digger
 • 26,740 points • 796 views
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1 answer

Hyperledger Fabric CA "Failed to get user: User not found"

Jul 23, 2018 in Blockchain by slayer
 • 29,370 points • 2,596 views
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1 answer

Do we require a specific condition when working with indices on solidity?

Jul 23, 2018 in Blockchain by sabby
 • 4,370 points • 726 views
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1 answer

Error in sending value to an Ethereum Smart Contract.

Jul 23, 2018 in Blockchain by sabby
 • 4,370 points • 1,601 views
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1 answer

How can I build a hexadecimal block if I have all the needed information?

Jul 21, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,094 views
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1 answer

How should I set my mac to install "hyperledger composer playground locally" ?

Jul 21, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,062 views
0 votes
1 answer

Hyperledger Composer error in transaction

Jul 20, 2018 in Blockchain by Mrunal
 • 680 points • 874 views
+1 vote
1 answer

Ethereum Error: authentication needed: password or unlock

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 5,516 views
0 votes
1 answer

How to display State Information to a list of participants dynamically?

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 816 views
0 votes
1 answer

How to send Bitcoins with node.js?

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 3,508 views
0 votes
1 answer

Ethereum Studio: Can't find Sandbox

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 1,130 views
+1 vote
2 answers

Using Composite Key formation to get states for a date range in Hyperledger Fabric V1.0

Jul 20, 2018 in Blockchain by aryya
 • 7,460 points • 5,021 views
+1 vote
1 answer

How to perform a simple 1-to-1 Bitcoin Transaction with Bitcore?

Jul 20, 2018 in Blockchain by aryya
 • 7,460 points • 2,296 views
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3 answers

Hyperledger fabcar sample fabric error: sendPeersProposal - Promise is rejected: Error: Connect Failed

Jul 20, 2018 in Blockchain by charlie_brown
 • 7,720 points • 3,341 views
0 votes
1 answer

How does the consensus happen in Saas based blockchain application?

Jul 20, 2018 in Blockchain by charlie_brown
 • 7,720 points • 828 views
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1 answer

How to setup rule in ACL file of Hyperledger Composer to validate against enum?

Jul 19, 2018 in Blockchain by sabby
 • 4,370 points • 1,511 views
0 votes
1 answer

How to retrieve data from an Ethereum Block?

Jul 19, 2018 in Blockchain by sabby
 • 4,370 points • 2,772 views
0 votes
1 answer

Which is the best decentralized storage apps?

Jul 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 812 views
0 votes
1 answer

Why hyperledger REST server has PUT method?

Jul 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 765 views
0 votes
1 answer

How can I change endorsement policies in hyperledger?

Jul 19, 2018 in Blockchain by Shashank
 • 10,400 points • 1,445 views
0 votes
1 answer

How do I get the total amount sent to an address?

Jul 19, 2018 in Blockchain by Shashank
 • 10,400 points • 981 views
0 votes
1 answer

How to change Endorsement policies

Jul 18, 2018 in Blockchain by aryya
 • 7,460 points • 925 views
0 votes
1 answer

How to use Blockchain to store government records?

Jul 18, 2018 in Blockchain by aryya
 • 7,460 points • 652 views
0 votes
1 answer

What is the purpose of Blockchain Technology?

Jul 18, 2018 in Blockchain by whatsinname
 • 280 points • 1,832 views
0 votes
1 answer

Can we store encrypted data into transaction?

Jul 17, 2018 in Blockchain by sabby
 • 4,370 points • 757 views
0 votes
1 answer

GetState query via chaincode always returns empty value

Jul 17, 2018 in Blockchain by sabby
 • 4,370 points • 1,912 views
0 votes
1 answer

Getting error while trying to submit a transaction on hyperledger playground

Jul 17, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,172 views
0 votes
1 answer

How do I calculate number of full nodes in bitcoins/altcoins?

Jul 17, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,588 views
0 votes
1 answer

Can someone help me conceptualizing blockchain for supply chain demo?

Jul 17, 2018 in Blockchain by Johnathon
 • 9,090 points • 981 views
0 votes
1 answer

How blockchain hides it's HTML source?

Jul 17, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,302 views
0 votes
1 answer

Sorting data into appropriate key in an object

Jul 17, 2018 in Blockchain by charlie_brown
 • 7,720 points • 695 views
0 votes
1 answer

How to understand transaction verification in blockchain

Jul 17, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,261 views
0 votes
1 answer

Should I require a specific condition when working with indexes in Solidity?

Jul 17, 2018 in Blockchain by charlie_brown
 • 7,720 points • 781 views
0 votes
1 answer

Is it possible to claim Bitcoin Cash from an exchange that does not support it?

Jul 17, 2018 in Blockchain by charlie_brown
 • 7,720 points • 820 views
0 votes
1 answer

How to solve "'Asset:org.acme.trading.Commodity' does not exist" error?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 763 views
0 votes
1 answer

How to limit execution of smart contract only to my dapp?

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 818 views
0 votes
1 answer

How to make Geth transactions faster?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 1,877 views
0 votes
1 answer

What does "Using network 'develop'" mean?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 724 views
0 votes
1 answer

How to build a non-payment application using Ethereum blockchain?

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 813 views
0 votes
1 answer

How to solve "error trying install composer runtime" in Hyperledger composer?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 984 views
0 votes
1 answer

Where can i get bitcoins for testing?

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 580 views
0 votes
1 answer

How to retain the container state after shutdown/restart of Hyperledger Fabric network?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 2,615 views
0 votes
1 answer

Can smart contract be altered after deployment?

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 672 views
0 votes
1 answer

How do nodes communicate with each other in hyperledger?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 1,682 views
0 votes
1 answer

What happens to the short chain when the nodes follow the long chain?

Jul 16, 2018 in Blockchain by slayer
 • 29,370 points • 1,120 views
0 votes
1 answer

How to call external data using smart contracts?

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 1,827 views
0 votes
1 answer

How to achieve consensus with peers from different departments?

Jul 16, 2018 in Blockchain by slayer
 • 29,370 points • 723 views
+1 vote
5 answers

How to solve "truffle: command not found" error in blockchain?

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 12,310 views
0 votes
1 answer

How to generate new address for blockchain wallet?

Jul 16, 2018 in Blockchain by slayer
 • 29,370 points • 3,443 views
0 votes
1 answer

Can i use HTTP GET to call external service in Hyperledger Composer?

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 709 views
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