Recent questions tagged blockchain

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1 answer

How do I query Blockchain bitcoin locally?

Apr 19, 2018 in Blockchain by nsv999
 • 5,500 points • 1,726 views
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1 answer

What do we mean by a validating peer?

Apr 19, 2018 in Blockchain by nsv999
 • 5,500 points • 1,228 views
+1 vote
1 answer

How does a blockchain work in hyperledger framework?

Apr 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,120 views
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1 answer

Transaction cost variations in one contract vs. multiple contracts

Apr 19, 2018 in Blockchain by Johnathon
 • 9,090 points • 810 views
0 votes
1 answer

How can I write complex decentralized applications on Etheruem?

Apr 18, 2018 in Blockchain by Johnathon
 • 9,090 points • 764 views
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1 answer

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

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

How can I modify stored data in blockchain??

Apr 18, 2018 in Blockchain by anonymous
 • 6,184 views
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Is it possible to setup private ethereum network for creating applications??

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

Distinguish between private blockchains and hashgraph, ripple

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

How PBFT algorithm works?

Apr 18, 2018 in Blockchain by anonymous
 • 8,303 views
+1 vote
1 answer

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

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

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

Apr 18, 2018 in Blockchain by anonymous
 • 1,337 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
 • 935 views
0 votes
1 answer

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

Apr 18, 2018 in Blockchain by anonymous
 • 5,111 views
+1 vote
1 answer

Where does hyperledger stores stores assets and participants??

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

How to setup testnet environment in Ethereum??

Apr 18, 2018 in Blockchain by anonymous
 • 977 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 • 1,523 views
+1 vote
1 answer

Hyperledger - How can I use transaction certificates to enforce privacy?

Apr 17, 2018 in Blockchain by nsv999
 • 5,500 points • 944 views
+1 vote
1 answer

How is data retrieved in Ethereum?

Apr 16, 2018 in Blockchain by Perry
 • 17,100 points • 1,013 views
+1 vote
3 answers

How efficient is Ethereum in regard to its TPS??

Apr 16, 2018 in Blockchain by Perry
 • 17,100 points • 3,922 views
+1 vote
1 answer

In public blockchains each computer normal user maintain the ledger, is it scalable enough to do so?

Apr 12, 2018 in Blockchain by Shashank
 • 10,400 points • 653 views
+1 vote
4 answers

What role does Orderer peer serves in Hyperledger Fabric??

Apr 12, 2018 in Blockchain by Shashank
 • 10,400 points • 3,072 views
+1 vote
1 answer

Why is it so difficult to find a nonce while validating a block in Bitcoin?

Apr 11, 2018 in Blockchain by Johnathon
 • 9,090 points • 2,132 views
+1 vote
1 answer

What are the key functional differences between Hyperledger Composer and Fabric Javascript SDK?

Apr 11, 2018 in Blockchain by nsv999
 • 5,500 points • 1,679 views
+1 vote
1 answer

How do i generate corda nodes keystores in dev mode?

Apr 11, 2018 in Blockchain by nsv999
 • 5,500 points • 1,804 views
+2 votes
3 answers

Can multi-channels be supported by Hyperledger in one peer?

Apr 11, 2018 in Blockchain by Johnathon
 • 9,090 points • 2,971 views
+1 vote
2 answers

Can I include real world data in a smart contract? If so, how?

Apr 10, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,278 views
+1 vote
4 answers

How can we search a block using transaction Id(TxID) or hash?

Apr 10, 2018 in Blockchain by Christine
 • 15,790 points • 4,204 views
+1 vote
1 answer

How Blockchain work in a mobile app?

Apr 10, 2018 in Blockchain by Christine
 • 15,790 points • 803 views
+1 vote
1 answer

How to decide on a nonce while developing a blockchain?

Apr 10, 2018 in Blockchain by anonymous
 • 1,367 views
+1 vote
1 answer

How do i change the names of validating peers in IBM Bluemix blockchain?

Apr 10, 2018 in Blockchain by nsv999
 • 5,500 points • 1,046 views
+1 vote
4 answers

How to estimate the cost for deploying smart contract on mainnet?

Apr 9, 2018 in Blockchain by anonymous
 • 15,811 views
0 votes
1 answer

Can a hacker change data of a smart sontract without call contract function?

Apr 8, 2018 in Blockchain by Johnathon
 • 9,090 points • 734 views
+1 vote
5 answers

Difference between internal-external, private-public in function

Apr 8, 2018 in Blockchain by Johnathon
 • 9,090 points • 9,458 views
0 votes
1 answer

What are the differences between tendermint and hashgraph?

Apr 8, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,004 views
+1 vote
7 answers

What are the advantages and limitations of hyperledger composer over fabric?

Apr 8, 2018 in Blockchain by Johnathon
 • 9,090 points • 3,834 views
+1 vote
1 answer

What problem does pow(proof of work) solves in blockchain?

Apr 8, 2018 in Blockchain by Christine
 • 15,790 points • 1,251 views
+1 vote
1 answer

What are the differences between coin and token?

Apr 8, 2018 in Blockchain by Christine
 • 15,790 points • 946 views
+1 vote
1 answer

Do we need metamask extension to make transactions on ether?

Apr 8, 2018 in Blockchain by Christine
 • 15,790 points • 1,258 views
+1 vote
1 answer

Can a data be altered in a blockchain without changing its hash?

Apr 8, 2018 in Blockchain by Christine
 • 15,790 points • 978 views
0 votes
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What happens to the ethereum mempool transaction of uncle and fork nodes

Apr 8, 2018 in Blockchain by Christine
 • 15,790 points • 1,082 views
+1 vote
1 answer

How blockchain nodes switches to another chain?

Apr 8, 2018 in Blockchain by Shashank
 • 10,400 points • 852 views
+1 vote
8 answers

How is Blockchain a linked list?

Apr 7, 2018 in Blockchain by ned_crew
 • 1,610 points • 13,736 views
+1 vote
1 answer

How hyperledger fabric is stored on a PC?

Apr 7, 2018 in Blockchain by ned_crew
 • 1,610 points • 953 views
+1 vote
1 answer

Can we copy a smart contract?

Apr 7, 2018 in Blockchain by nsv999
 • 5,500 points • 2,167 views
+1 vote
1 answer

How are blocks are mined and shared among all Validating Peers in the Hyperledger network.

Apr 7, 2018 in Blockchain by nsv999
 • 5,500 points • 705 views
+3 votes
4 answers

How do I add a new node on a Hyperledger network?

Apr 7, 2018 in Blockchain by Johnathon
 • 9,090 points • 5,874 views
+1 vote
1 answer

What are the differences between the hyperledger and Blockchain?

Apr 5, 2018 in Blockchain by Christine
 • 15,790 points • 4,294 views
+1 vote
2 answers

How a merkle tree is generated?

Apr 5, 2018 in Blockchain by Christine
 • 15,790 points • 1,169 views
+1 vote
1 answer

Hyperledger network roles assigned to peer nodes.

Apr 4, 2018 in Blockchain by Perry
 • 17,100 points • 1,591 views
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