Recent questions tagged blockchain

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How to prevent the smart contract from being modified and deployed in the blockchain network?

Jul 6, 2018 in Blockchain by charlie_brown
 • 7,720 points • 892 views
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1 answer

composer network start with error SERVICE_UNAVAILABLE

Jul 6, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,262 views
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How to create a ‘feeless’ ERC20 token?

Jul 6, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,092 views
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how can i convert stub.GetTxTimestamp() to type string?

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 1,665 views
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"set RNG(RandomUtils.Random) before generating random numbers" error

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 933 views
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IBM Blockchain cant retrieving multiple rows from table

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 759 views
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1 answer

How to retrieve complete world state of hyperledger?

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 1,454 views
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difference between running docker image in and outside of vagrant

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 718 views
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Updating data of struct to save in chaincode.

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 1,321 views
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How is consensus reached when there are only two peers in Hyperledger Fabric?

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 1,896 views
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Passing hash string with smart contracts

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 1,504 views
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"could not find test.properties" error in Hyperledger v1.0

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 803 views
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Blockchain.info wallet API callback

Jul 4, 2018 in Blockchain by sabby
 • 4,370 points • 983 views
0 votes
1 answer

Hyperledge fabric v0.6 querying states between a period range

Jul 4, 2018 in Blockchain by slayer
 • 29,370 points • 923 views
+7 votes
34 answers

The One question you always wanted to ask about your career!!!

Jul 4, 2018 in Career Counselling by donotcall
 • 650 points • 7,551 views
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How would I run SpringBoot with the Java-SDK of Hyperledger Fabric java daemon?

Jul 4, 2018 in Blockchain by Shashank
 • 10,400 points • 2,424 views
+1 vote
2 answers

How do I access the api generated by hyperledger composer publicly?

Jul 4, 2018 in Blockchain by Shashank
 • 10,400 points • 1,398 views
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1 answer

How to make transactions without creating assets in multichain?

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 736 views
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Geth 'sendTransaction' not working

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 1,433 views
0 votes
1 answer

Network issue while testing Chaincode.

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 739 views
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1 answer

How read-write sets is used in hyperledger?

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 1,406 views
0 votes
1 answer

How blocks are linked in the Hyperledger Fabric blockchain?

Jul 3, 2018 in Blockchain by digger
 • 26,740 points • 1,710 views
0 votes
1 answer

How to remove the previous BlockChain data?

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 1,061 views
0 votes
1 answer

How ordering nodes synchronize work?

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 757 views
0 votes
1 answer

How to change "gasLimit" on Azure private blockchain?

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 909 views
0 votes
1 answer

In Hyperledger fabric, how does committer validate the transaction?

Jul 3, 2018 in Blockchain by slayer
 • 29,370 points • 1,330 views
0 votes
1 answer

Who is miners in smart contracts?

Jul 3, 2018 in Blockchain by digger
 • 26,740 points • 974 views
0 votes
1 answer

repository hyperledger/fabric-tools not found: does not exist or no pull access

Jul 3, 2018 in Blockchain by aryya
 • 7,460 points • 1,128 views
0 votes
1 answer

Blockchain/decentralized apps development intro

Jul 3, 2018 in Blockchain by aryya
 • 7,460 points • 577 views
0 votes
1 answer

Where is the hyperlewdger fabric endorsement policy stored?

Jul 3, 2018 in Blockchain by aryya
 • 7,460 points • 1,681 views
0 votes
1 answer

How can I use IBM blockchain to store data?

Jul 3, 2018 in Blockchain by aryya
 • 7,460 points • 1,071 views
0 votes
1 answer

How to hold back KYC reward until the end of the ICO Crowdsale?

Jul 3, 2018 in Blockchain by sabby
 • 4,370 points • 780 views
0 votes
1 answer

Hyperledger remove asset

Jul 3, 2018 in Blockchain by sabby
 • 4,370 points • 1,394 views
0 votes
1 answer

Hyperledger Fabric peer command not found error.

Jul 2, 2018 in Blockchain by digger
 • 26,740 points • 4,029 views
0 votes
1 answer

Hyperledger Fabric 1.0 how to maintain privacy from OSNs?

Jul 2, 2018 in Blockchain by slayer
 • 29,370 points • 1,029 views
0 votes
2 answers

Why does not India consider Bitcoin as a legal tender?

Jul 2, 2018 in Blockchain by slayer
 • 29,370 points • 913 views
0 votes
1 answer

How do i deploy a contract using bigchainDB?

Jun 30, 2018 in Blockchain by sabby
 • 4,370 points • 1,225 views
0 votes
1 answer

How can I get into the development of blockchain decentralized applications?

Jun 30, 2018 in Blockchain by sabby
 • 4,370 points • 689 views
0 votes
1 answer

What is Blockchain?

Jun 29, 2018 in Blockchain by digger
 • 26,740 points • 750 views
0 votes
3 answers

Querying past transaction data from Hyperledger Fabric.

Jun 29, 2018 in Blockchain by digger
 • 26,740 points • 6,187 views
0 votes
2 answers

Hyperledger Fabric Bluemix not accepting logins.

Jun 29, 2018 in Blockchain by digger
 • 26,740 points • 781 views
0 votes
1 answer

Handling connection of new nodes in Decentralized Chatting application.

Jun 29, 2018 in Blockchain by slayer
 • 29,370 points • 982 views
0 votes
1 answer

How to control a malicious user in hyperledger fabric?

Jun 29, 2018 in Blockchain by slayer
 • 29,370 points • 1,146 views
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1 answer

Where is the data stored in blockchain?

Jun 29, 2018 in Blockchain by digger
 • 26,740 points • 1,564 views
0 votes
1 answer

How is consensus achieved in a Hyperledger Fabric?

Jun 29, 2018 in Blockchain by digger
 • 26,740 points • 1,351 views
0 votes
1 answer

"stateHash" vs. "previousBlockHash" in blockchain.

Jun 29, 2018 in Blockchain by digger
 • 26,740 points • 837 views
0 votes
1 answer

Error: Error trying to ping. Error: Error trying to query business network. Error: Connect Failed

Jun 28, 2018 in Blockchain by sabby
 • 4,370 points • 1,749 views
+1 vote
1 answer

How to write an ERC 721 contract?

Jun 28, 2018 in Blockchain by sabby
 • 4,370 points • 3,269 views
+1 vote
1 answer

Does the client know which peer approves/supports its transaction in Hyperledger Fabric?

Jun 27, 2018 in Blockchain by slayer
 • 29,370 points • 874 views
0 votes
2 answers

How can I make transactions to a blockchain from a remote device(like a cell phone)?

Jun 27, 2018 in Blockchain by slayer
 • 29,370 points • 1,112 views
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