Recent questions tagged blockchain

+1 vote
2 answers

How can a public proof of work be secured?

May 9, 2018 in Blockchain by Shashank
 • 10,400 points • 854 views
0 votes
1 answer

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

May 8, 2018 in Blockchain by Shashank
 • 10,400 points • 632 views
0 votes
1 answer

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

May 8, 2018 in Blockchain by Shashank
 • 10,400 points • 834 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 • 520 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 • 5,409 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 • 1,361 views
0 votes
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 • 705 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 • 899 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 • 2,004 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 • 9,393 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 • 861 views
+1 vote
1 answer

How can nodes interact with a Smart Contract?

Apr 27, 2018 in Blockchain by Johnathon
 • 9,090 points • 837 views
0 votes
1 answer

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

Apr 27, 2018 in Blockchain by Johnathon
 • 9,090 points • 2,909 views
+1 vote
1 answer

Error while deploying chaincode in IBM Blockchain. Please help.

Apr 26, 2018 in Blockchain by nsv999
 • 5,500 points • 952 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 • 1,564 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 • 2,031 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 • 1,563 views
+1 vote
1 answer

How to store state data in Ethereum blockchain?

Apr 25, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,017 views
+1 vote
1 answer

what is use of msg.sender in solidity code?

Apr 25, 2018 in Blockchain by Johnathon
 • 9,090 points • 9,221 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
 • 4,607 views
+1 vote
1 answer

Can I mine a specific transaction on ethereum?

Apr 24, 2018 in Blockchain by anonymous
 • 1,607 views
+1 vote
1 answer

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

Apr 21, 2018 in Blockchain by anonymous
 • 1,953 views
0 votes
1 answer

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

Apr 21, 2018 in Blockchain by anonymous
 • 849 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
 • 852 views
0 votes
1 answer

How pbft is being used in blockchain?

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

Where to store the data of decentralized applications??

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

How immutability is achieved in hyperledger fabric?

Apr 20, 2018 in Blockchain by anonymous
 • 1,652 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
 • 717 views
+1 vote
1 answer

Which data structure to prefer to model a blockchain?

Apr 20, 2018 in Blockchain by anonymous
 • 2,788 views
+1 vote
2 answers

What is a blockchain and ethereum?

Apr 20, 2018 in Blockchain by anonymous
 • 915 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
 • 1,196 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 • 1,050 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 • 2,065 views
0 votes
1 answer

How do I query Blockchain bitcoin locally?

Apr 19, 2018 in Blockchain by nsv999
 • 5,500 points • 1,688 views
0 votes
1 answer

What do we mean by a validating peer?

Apr 19, 2018 in Blockchain by nsv999
 • 5,500 points • 1,186 views
+1 vote
1 answer

How does a blockchain work in hyperledger framework?

Apr 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,105 views
0 votes
1 answer

Transaction cost variations in one contract vs. multiple contracts

Apr 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 801 views
0 votes
1 answer

How can I write complex decentralized applications on Etheruem?

Apr 18, 2018 in Blockchain by Johnathon
 • 9,090 points • 738 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 • 862 views
+1 vote
1 answer

How can I modify stored data in blockchain??

Apr 18, 2018 in Blockchain by anonymous
 • 6,170 views
0 votes
1 answer

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

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

Distinguish between private blockchains and hashgraph, ripple

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

How PBFT algorithm works?

Apr 18, 2018 in Blockchain by anonymous
 • 8,250 views
+1 vote
1 answer

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

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

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

Apr 18, 2018 in Blockchain by anonymous
 • 1,306 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
 • 927 views
0 votes
1 answer

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

Apr 18, 2018 in Blockchain by anonymous
 • 5,093 views
+1 vote
1 answer

Where does hyperledger stores stores assets and participants??

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

How to setup testnet environment in Ethereum??

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

How can I connect my main Ethereum network to Web3.py using python?

Apr 17, 2018 in Blockchain by nsv999
 • 5,500 points • 1,487 views
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