Recent questions tagged blockchain

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1 answer

Do I need to create a new validating peer once a new user join my network.?

May 10, 2018 in Blockchain by Shashank
 • 10,400 points • 814 views
+1 vote
2 answers

What if a bitcoin clients could create identical private keys?

May 9, 2018 in Blockchain by Shashank
 • 10,400 points • 1,095 views
+1 vote
2 answers

How can a public proof of work be secured?

May 9, 2018 in Blockchain by Shashank
 • 10,400 points • 982 views
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1 answer

How feasible is it to use one way cryptographic hash function?

May 8, 2018 in Blockchain by Shashank
 • 10,400 points • 720 views
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1 answer

How to check the data integrity logic in proof of work mining?

May 8, 2018 in Blockchain by Shashank
 • 10,400 points • 931 views
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1 answer

What technologies can be used to build private blockchain technologies?

May 5, 2018 in Blockchain by Shashank
 • 10,400 points • 595 views
+2 votes
2 answers

How can I traverse the blocks of transactions in hyperledger fabric?

May 5, 2018 in Blockchain by Shashank
 • 10,400 points • 5,565 views
+1 vote
1 answer

How is ordering of transactions done in a block in hyperledger?

May 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,465 views
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1 answer

Why is it downloading the blocks when I am trying to deploy the ethereum private network?

May 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 793 views
+1 vote
2 answers

How can I use blockhain for storing a proof of a document such as an image?

May 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 998 views
+1 vote
1 answer

What are peers and how a user enrolls into a specific peer?

May 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 2,172 views
+1 vote
5 answers

Where does the smart contracts stored and executed on blockchain?

May 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 9,648 views
0 votes
1 answer

How can we decrypt a transaction payload when confidentiality is on?

May 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 957 views
+1 vote
1 answer

How can nodes interact with a Smart Contract?

Apr 27, 2018 in Blockchain by Johnathon
 • 9,090 points • 935 views
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1 answer

How can I deploy a HelloWorld contract on my testrpc network?

Apr 27, 2018 in Blockchain by Johnathon
 • 9,090 points • 3,224 views
+1 vote
1 answer

Error while deploying chaincode in IBM Blockchain. Please help.

Apr 26, 2018 in Blockchain by nsv999
 • 5,500 points • 1,069 views
+1 vote
1 answer

What happened on deploy, invoke and query in Hyperledger chaincode?

Apr 26, 2018 in Blockchain by nsv999
 • 5,500 points • 1,672 views
+1 vote
1 answer

How can I connect to the specified nodes using IPFS?

Apr 25, 2018 in Blockchain by Shashank
 • 10,400 points • 2,126 views
+1 vote
1 answer

What'd be the best database to store data on blockchain?

Apr 25, 2018 in Blockchain by Shashank
 • 10,400 points • 1,722 views
+1 vote
1 answer

How to store state data in Ethereum blockchain?

Apr 25, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,202 views
+1 vote
1 answer

what is use of msg.sender in solidity code?

Apr 25, 2018 in Blockchain by Johnathon
 • 9,090 points • 9,367 views
0 votes
2 answers

Why is network already up to date while trying to deploy a contract on truffle?

Apr 24, 2018 in Blockchain by anonymous
 • 4,808 views
+1 vote
1 answer

Can I mine a specific transaction on ethereum?

Apr 24, 2018 in Blockchain by anonymous
 • 1,792 views
+1 vote
1 answer

What is the best way to search for an item in blockchain?

Apr 21, 2018 in Blockchain by anonymous
 • 2,139 views
0 votes
1 answer

Is it that new bitcoins gets created with the every block mined??

Apr 21, 2018 in Blockchain by anonymous
 • 1,018 views
0 votes
1 answer

What happens if the controller nodes in Corda shuts down, will other nodes function independently?

Apr 20, 2018 in Blockchain by anonymous
 • 975 views
0 votes
1 answer

How pbft is being used in blockchain?

Apr 20, 2018 in Blockchain by anonymous
 • 959 views
0 votes
1 answer

Where to store the data of decentralized applications??

Apr 20, 2018 in Blockchain by anonymous
 • 809 views
+1 vote
1 answer

How immutability is achieved in hyperledger fabric?

Apr 20, 2018 in Blockchain by anonymous
 • 1,837 views
+1 vote
1 answer

How can I achieve a functionality where an action is performed after a payment is received?

Apr 20, 2018 in Blockchain by anonymous
 • 897 views
+1 vote
1 answer

Which data structure to prefer to model a blockchain?

Apr 20, 2018 in Blockchain by anonymous
 • 2,892 views
+1 vote
2 answers

What is a blockchain and ethereum?

Apr 20, 2018 in Blockchain by anonymous
 • 1,039 views
+1 vote
1 answer

Is it possible to store blockchain in a sql or no-sql database?

Apr 20, 2018 in Blockchain by anonymous
 • 1,432 views
0 votes
1 answer

In a Blockchain, how difficult is it to modify the third to last block?

Apr 20, 2018 in Blockchain by Perry
 • 17,100 points • 1,154 views
0 votes
1 answer

How can i create a simple P2P network on a blockchain?

Apr 20, 2018 in Blockchain by Perry
 • 17,100 points • 2,264 views
0 votes
1 answer

How do I query Blockchain bitcoin locally?

Apr 19, 2018 in Blockchain by nsv999
 • 5,500 points • 1,896 views
0 votes
1 answer

What do we mean by a validating peer?

Apr 19, 2018 in Blockchain by nsv999
 • 5,500 points • 1,332 views
+1 vote
1 answer

How does a blockchain work in hyperledger framework?

Apr 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,219 views
0 votes
1 answer

Transaction cost variations in one contract vs. multiple contracts

Apr 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 899 views
0 votes
1 answer

How can I write complex decentralized applications on Etheruem?

Apr 18, 2018 in Blockchain by Johnathon
 • 9,090 points • 892 views
0 votes
1 answer

How secure is to implement blockchain at a smaller scale??

Apr 18, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,041 views
+1 vote
1 answer

How can I modify stored data in blockchain??

Apr 18, 2018 in Blockchain by anonymous
 • 6,291 views
0 votes
1 answer

Is it possible to setup private ethereum network for creating applications??

Apr 18, 2018 in Blockchain by anonymous
 • 1,033 views
0 votes
1 answer

Distinguish between private blockchains and hashgraph, ripple

Apr 18, 2018 in Blockchain by anonymous
 • 741 views
+1 vote
4 answers

How PBFT algorithm works?

Apr 18, 2018 in Blockchain by anonymous
 • 8,537 views
+1 vote
1 answer

How is it possible to achieve privacy and confidentiality in smart contracts??

Apr 18, 2018 in Blockchain by anonymous
 • 1,073 views
+1 vote
1 answer

What are the differences between blockchain programming and our traditional programming languages?

Apr 18, 2018 in Blockchain by anonymous
 • 1,493 views
+1 vote
1 answer

How can I initiate a transaction on ethereum private network using mobile device?

Apr 18, 2018 in Blockchain by anonymous
 • 1,021 views
0 votes
1 answer

What is the difference between if() and require() statement in solidity??

Apr 18, 2018 in Blockchain by anonymous
 • 5,224 views
+1 vote
1 answer

Where does hyperledger stores stores assets and participants??

Apr 18, 2018 in Blockchain by anonymous
 • 930 views
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