Recent questions tagged blockchain

+1 vote
3 answers

How to solve “Module not found: Error: Can't resolve 'truffle-contract'” error in web3?

Jul 26, 2018 in Blockchain by slayer
 • 29,370 points • 7,732 views
0 votes
1 answer

Error in generating network sample.

Jul 26, 2018 in Blockchain by sabby
 • 4,370 points • 750 views
0 votes
1 answer

Error while generating smart contracts which returns array of struct in Web3j v3.3.1

Jul 26, 2018 in Blockchain by sabby
 • 4,370 points • 2,039 views
+1 vote
1 answer

How to change ports through which hyperledger composer installs runtime?

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 1,234 views
+1 vote
1 answer

Can I setup hyperledger composer on multiple nodes?

Jul 25, 2018 in Blockchain by slayer
 • 29,370 points • 1,649 views
0 votes
1 answer

Efficiently sorting Ethereum blockchain.

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 990 views
0 votes
1 answer

Zip attachment in Corda: How to read zip file using InputStream?

Jul 25, 2018 in Blockchain by slayer
 • 29,370 points • 1,349 views
0 votes
1 answer

Mining on private Ethereum blockchain

Jul 25, 2018 in Blockchain by Perry
 • 17,100 points • 1,053 views
0 votes
1 answer

How to solve “More than one instance of bitcore-lib found” error?

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 2,870 views
0 votes
1 answer

Error while adding participant to local application.

Jul 25, 2018 in Blockchain by slayer
 • 29,370 points • 694 views
0 votes
1 answer

What is the process to Create Cryptocurrency for ICO?

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 904 views
0 votes
1 answer

Is {from: thesponsor, value: 10000000, gas: 3000000} considered as a transaction object?

Jul 25, 2018 in Blockchain by slayer
 • 29,370 points • 702 views
0 votes
1 answer

Differences between the composer network and composer identity

Jul 25, 2018 in Blockchain by Perry
 • 17,100 points • 675 views
+1 vote
2 answers

How to configure Endorsement policy in Hyperledger?

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 3,381 views
0 votes
1 answer

How to connect a NS3 node to my local blockchain?

Jul 25, 2018 in Blockchain by slayer
 • 29,370 points • 2,559 views
0 votes
1 answer

Cannot download nvm install v.8.9.1 version - clang checksum do not match, sed issue

Jul 25, 2018 in Blockchain by aryya
 • 7,460 points • 2,617 views
0 votes
1 answer

How to send ethers to a contract?

Jul 25, 2018 in Blockchain by aryya
 • 7,460 points • 585 views
0 votes
1 answer

Trying to setup a hyperledger but REST API is throwing error

Jul 25, 2018 in Blockchain by Shashank
 • 10,400 points • 704 views
0 votes
1 answer

Can I upload or attach pdf to the blockchain payload?

Jul 25, 2018 in Blockchain by Shashank
 • 10,400 points • 1,514 views
0 votes
1 answer

Looking for a simple Blockchain PoC to implement on a office level

Jul 24, 2018 in Blockchain by charlie_brown
 • 7,720 points • 953 views
0 votes
1 answer

Why visual studio 2015 can not open blockchain api project on github

Jul 24, 2018 in Blockchain by charlie_brown
 • 7,720 points • 639 views
0 votes
1 answer

Display the state information to a list of participants dynamically.

Jul 24, 2018 in Blockchain by sabby
 • 4,370 points • 693 views
0 votes
1 answer

eth.getBalance() always returns 0 in testnet

Jul 24, 2018 in Blockchain by sabby
 • 4,370 points • 2,679 views
0 votes
1 answer

Can we create a hyperledger fabric with peers from different platforms?

Jul 24, 2018 in Blockchain by digger
 • 26,740 points • 520 views
0 votes
2 answers

How is a transaction public key related to original public?

Jul 24, 2018 in Blockchain by slayer
 • 29,370 points • 755 views
0 votes
1 answer

Can i transfer Kraken to Poloniex?

Jul 24, 2018 in Blockchain by digger
 • 26,740 points • 728 views
0 votes
1 answer

Can a hyperledger composer work without fabric installed?

Jul 24, 2018 in Blockchain by slayer
 • 29,370 points • 760 views
0 votes
2 answers

Why is getTransactionReceipt() returning None (NoneType object)?

Jul 24, 2018 in Blockchain by digger
 • 26,740 points • 1,250 views
0 votes
1 answer

How proof work prevents rebuilding of blockchain?

Jul 24, 2018 in Blockchain by Perry
 • 17,100 points • 709 views
0 votes
1 answer

how can I save my nodejs blockchain??

Jul 24, 2018 in Blockchain by Perry
 • 17,100 points • 621 views
0 votes
1 answer

Not able to execute fabcar demo in Hyperledger

Jul 24, 2018 in Blockchain by aryya
 • 7,460 points • 1,093 views
0 votes
1 answer

npm hfc@0.6.2 not properly installing

Jul 24, 2018 in Blockchain by aryya
 • 7,460 points • 1,120 views
0 votes
1 answer

How to return data on execution of invoke function?

Jul 23, 2018 in Blockchain by slayer
 • 29,370 points • 654 views
0 votes
1 answer

Can I make my smart contract private in Quorum?

Jul 23, 2018 in Blockchain by digger
 • 26,740 points • 1,845 views
0 votes
1 answer

What is sent to a non-validating notary service when corda transaction is sent?

Jul 23, 2018 in Blockchain by slayer
 • 29,370 points • 1,039 views
0 votes
1 answer

How to check history of blockchain.info wallet?

Jul 23, 2018 in Blockchain by digger
 • 26,740 points • 1,905 views
0 votes
1 answer

Not able to deploy smart contract on testrpc.

Jul 23, 2018 in Blockchain by slayer
 • 29,370 points • 884 views
0 votes
1 answer

How to track changes of an object in exonum?

Jul 23, 2018 in Blockchain by digger
 • 26,740 points • 679 views
0 votes
1 answer

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

Jul 23, 2018 in Blockchain by slayer
 • 29,370 points • 2,537 views
0 votes
1 answer

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

Jul 23, 2018 in Blockchain by sabby
 • 4,370 points • 614 views
0 votes
1 answer

Error in sending value to an Ethereum Smart Contract.

Jul 23, 2018 in Blockchain by sabby
 • 4,370 points • 1,470 views
0 votes
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 • 970 views
0 votes
1 answer

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

Jul 21, 2018 in Blockchain by Johnathon
 • 9,090 points • 946 views
0 votes
1 answer

Hyperledger Composer error in transaction

Jul 20, 2018 in Blockchain by Mrunal
 • 680 points • 759 views
+1 vote
1 answer

Ethereum Error: authentication needed: password or unlock

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 5,348 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 • 772 views
0 votes
1 answer

How to send Bitcoins with node.js?

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 3,431 views
0 votes
1 answer

Ethereum Studio: Can't find Sandbox

Jul 20, 2018 in Blockchain by sabby
 • 4,370 points • 914 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 • 4,869 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 • 2,218 views
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