Recent questions tagged blockchain

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1 answer

Can someone help me conceptualizing blockchain for supply chain demo?

Jul 17, 2018 in Blockchain by Johnathon
 • 9,090 points • 653 views
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How blockchain hides it's HTML source?

Jul 17, 2018 in Blockchain by Johnathon
 • 9,090 points • 945 views
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Sorting data into appropriate key in an object

Jul 17, 2018 in Blockchain by charlie_brown
 • 7,720 points • 383 views
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How to understand transaction verification in blockchain

Jul 17, 2018 in Blockchain by charlie_brown
 • 7,720 points • 885 views
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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 • 380 views
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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 • 541 views
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1 answer

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

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 399 views
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1 answer

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

Jul 17, 2018 in Blockchain by slayer
 • 29,350 points • 496 views
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1 answer

How to make Geth transactions faster?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 1,445 views
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1 answer

What does "Using network 'develop'" mean?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 488 views
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1 answer

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

Jul 17, 2018 in Blockchain by slayer
 • 29,350 points • 510 views
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1 answer

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

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 687 views
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1 answer

Where can i get bitcoins for testing?

Jul 17, 2018 in Blockchain by slayer
 • 29,350 points • 332 views
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How to retain the container state after shutdown/restart of Hyperledger Fabric network?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 2,230 views
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Can smart contract be altered after deployment?

Jul 17, 2018 in Blockchain by slayer
 • 29,350 points • 433 views
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1 answer

How do nodes communicate with each other in hyperledger?

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 1,339 views
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1 answer

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

Jul 16, 2018 in Blockchain by slayer
 • 29,350 points • 708 views
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1 answer

How to call external data using smart contracts?

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 1,287 views
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1 answer

How to achieve consensus with peers from different departments?

Jul 16, 2018 in Blockchain by slayer
 • 29,350 points • 467 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 • 11,336 views
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1 answer

How to generate new address for blockchain wallet?

Jul 16, 2018 in Blockchain by slayer
 • 29,350 points • 3,068 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 • 431 views
0 votes
1 answer

How to interact with blockchain using Java web app?

Jul 16, 2018 in Blockchain by slayer
 • 29,350 points • 922 views
0 votes
1 answer

How to get peer admin's certificate and key on Bluemix?

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 706 views
0 votes
1 answer

How to extract h160 address of bitcoin blockchain?

Jul 16, 2018 in Blockchain by slayer
 • 29,350 points • 2,276 views
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1 answer

How are unique public address generated in bitcoin?

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 571 views
0 votes
1 answer

Unable to request channel creation using Rest Api

Jul 16, 2018 in Blockchain by sabby
 • 4,390 points • 682 views
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1 answer

Hyperledger Fabric V1.0 Application using Java SDK Client for is waiting indefinitely when invoking chaincode

Jul 16, 2018 in Blockchain by sabby
 • 4,390 points • 1,064 views
0 votes
1 answer

How to handle memory and processor limitations of nodes in blockchain?

Jul 14, 2018 in Blockchain by aryya
 • 7,450 points • 532 views
0 votes
1 answer

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

Jul 14, 2018 in Blockchain by aryya
 • 7,450 points • 305 views
0 votes
1 answer

Where does Hyperledger Fabric store the database for the Blockchain?

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 2,179 views
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1 answer

Hyperledger: How to test endorsement policy for the business network in multiple organizations?

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 942 views
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1 answer

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

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 380 views
0 votes
1 answer

What is the purpose of Blockchain Technology?

Jul 13, 2018 in Blockchain by whatsinname
 • 280 points • 10,203 views
0 votes
1 answer

Error during Hyperledger installation: Manifest peer latest not found

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 590 views
0 votes
1 answer

How to check Bitcoin Wallet ?

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 1,072 views
0 votes
1 answer

Transaction Id in Bitcoin Blockchain

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 795 views
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1 answer

Hyperledger Composer rest server NPM versions

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 639 views
0 votes
1 answer

Blockchain Python Syntax Error

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 716 views
0 votes
1 answer

How do I start mining on my private chain?

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 1,472 views
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1 answer

Hyperledger-Fabric Endorsement Policy: What are Members and Admins?

Jul 13, 2018 in Blockchain by sabby
 • 4,390 points • 870 views
0 votes
1 answer

How to solve Corda Node Startup Exception?

Jul 13, 2018 in Blockchain by slayer
 • 29,350 points • 699 views
0 votes
1 answer

How to solve "Failed to get identity 'admin'" error?

Jul 13, 2018 in Blockchain by digger
 • 26,740 points • 465 views
+1 vote
2 answers

How to solve Hyperledger Fabric "error endorsing chaincode" error?

Jul 13, 2018 in Blockchain by slayer
 • 29,350 points • 4,272 views
0 votes
1 answer

What is the difference between Blockchin and Bitcoin

Jul 13, 2018 in Blockchain by Mrunal
 • 680 points • 1,619 views
0 votes
1 answer

What if I change Chaincode state in invokeChaincode?

Jul 13, 2018 in Blockchain by digger
 • 26,740 points • 793 views
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1 answer

What is transientMap in node.js and getTransient in chaincode?

Jul 13, 2018 in Blockchain by slayer
 • 29,350 points • 1,112 views
+1 vote
4 answers

How to connect peers to a private network using geth?

Jul 13, 2018 in Blockchain by digger
 • 26,740 points • 13,391 views
0 votes
1 answer

Will blockchain be feasible in future when the ledgers will be of a larger size?

Jul 13, 2018 in Blockchain by slayer
 • 29,350 points • 424 views
0 votes
1 answer

How to write a program to get details of ERC tokens?

Jul 13, 2018 in Blockchain by digger
 • 26,740 points • 727 views
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