Recent questions tagged blockchain

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1 answer

How to enable authentication in hyperledger Angular application

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 1,502 views
0 votes
1 answer

Sawtooth Invalid Batch or Signature

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 1,060 views
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1 answer

Web3j Transfer.sendFunds() returns Error “insufficient funds for gas * price + value”

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 3,116 views
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1 answer

How one can implement blockchain for android development??

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 790 views
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1 answer

Not Able to register a user with Hyperledger-Fabric v1.1 preview

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 1,950 views
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1 answer

I need all Ethereum smart contracts

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 592 views
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1 answer

How to store picture(s) in a hyperledger blockchain channel

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 1,404 views
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1 answer

Deploy API REST IBM Hyperledger Composer Blockchain (bad flag in substitute command: 'U' ERROR)

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 710 views
0 votes
1 answer

I get the following error when I try to submit a transaction on the hyperleger playground

Jun 16, 2018 in Blockchain by aryya
 • 7,460 points • 846 views
+6 votes
3 answers

Why don't we consider Git as a Blockchain?

Jun 13, 2018 in Blockchain by nsv999
 • 5,500 points • 3,502 views
+1 vote
2 answers

How to return value from a chaincode in Hyperledger Fabric?

Jun 13, 2018 in Blockchain by nsv999
 • 5,500 points • 3,047 views
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1 answer

Does each DApp has its own separate Blockchain? Or can we develop multiple DApps on a single Blockchain platform?

Jun 11, 2018 in Blockchain by Perry
 • 17,100 points • 1,377 views
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1 answer

How to connect two instances of Hyperledger Fabric?

Jun 11, 2018 in Blockchain by Perry
 • 17,100 points • 1,193 views
+1 vote
1 answer

How can I add image into my Hyperledger instance

Jun 8, 2018 in Blockchain by charlie_brown
 • 7,720 points • 2,104 views
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2 answers

How to get notified when an event triggers on ethereum smart contract?

Jun 8, 2018 in Blockchain by charlie_brown
 • 7,720 points • 2,434 views
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1 answer

Unknown MSP DEFAULT error query chaincode

Jun 8, 2018 in Blockchain by Perry
 • 17,100 points • 832 views
0 votes
1 answer

How to get current block number in parity?

Jun 8, 2018 in Blockchain by Perry
 • 17,100 points • 1,410 views
0 votes
1 answer

PROTOBUF_INLINE_NOT_IN_HEADERS

Jun 7, 2018 in Blockchain by nsv999
 • 5,500 points • 1,222 views
0 votes
1 answer

Understanding Hyperledger transaction verification

Jun 7, 2018 in Blockchain by nsv999
 • 5,500 points • 1,112 views
+1 vote
1 answer

Car lease demo database location in IBM blockchain

Jun 7, 2018 in Blockchain by anonymous
 • 1,473 views
0 votes
1 answer

Why am I getting a grp timeout while setting up a Hyperledger development?

Jun 7, 2018 in Blockchain by nsv999
 • 5,500 points • 769 views
0 votes
1 answer

What is the use of Ethereum's RLPx in Ethereum ecosystem?

Jun 5, 2018 in Blockchain by Perry
 • 17,100 points • 2,249 views
0 votes
1 answer

Issue deploying the business network using hyperledger composer

Jun 5, 2018 in Blockchain by Perry
 • 17,100 points • 1,011 views
0 votes
1 answer

What happen to the mining fee for the blocks that are stale?

Jun 4, 2018 in Blockchain by Christine
 • 15,790 points • 714 views
0 votes
1 answer

How can I modify hyperledger's blockchain endorsement policy?

Jun 4, 2018 in Blockchain by Christine
 • 15,790 points • 1,179 views
0 votes
1 answer

Account not listed in the Deploy Contract screen?

Jun 4, 2018 in Blockchain by Johnathon
 • 9,090 points • 612 views
0 votes
1 answer

Can I swap an ERC-20 token with a Neo NEP5 token using a smart contract?

Jun 4, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,013 views
0 votes
1 answer

How to get the already existing channels in Hyperledger v1.0?

Jun 4, 2018 in Blockchain by Johnathon
 • 9,090 points • 2,549 views
0 votes
1 answer

How is a request sent from an app to a smart contract?

Jun 4, 2018 in Blockchain by Johnathon
 • 9,090 points • 753 views
0 votes
1 answer

What could be the best term to use for the collection of contracts in a .sol file?

Jun 2, 2018 in Blockchain by Johnathon
 • 9,090 points • 775 views
0 votes
1 answer

where is ethereum contract instance state stored???

Jun 2, 2018 in Blockchain by Johnathon
 • 9,090 points • 659 views
0 votes
1 answer

Can smart contract have token balance?

May 31, 2018 in Blockchain by Perry
 • 17,100 points • 1,462 views
0 votes
1 answer

Is IPFS, blockchain a decentralized file system?

May 31, 2018 in Blockchain by Perry
 • 17,100 points • 1,010 views
0 votes
1 answer

Can I secretly add numbers in a smart contract and only add sum?

May 30, 2018 in Blockchain by Christine
 • 15,790 points • 838 views
0 votes
3 answers

How to create a cryptocurrency based reward system using Ethereum?

May 30, 2018 in Blockchain by Christine
 • 15,790 points • 1,832 views
0 votes
1 answer

How do I develop a supply chain DApp on Blockchain?

May 30, 2018 in Blockchain by Christine
 • 15,790 points • 1,539 views
0 votes
1 answer

How do I send back ethers to the sender of the tokens in a smart contract?

May 30, 2018 in Blockchain by Christine
 • 15,790 points • 3,653 views
0 votes
1 answer

What if Gas required in my program exceeds the limit of 3000000?

May 29, 2018 in Blockchain by nsv999
 • 5,500 points • 837 views
0 votes
1 answer

Geth account password on command line

May 29, 2018 in Blockchain by nsv999
 • 5,500 points • 2,297 views
0 votes
1 answer

How can I synchronize smart contract on blockchain?

May 29, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,128 views
0 votes
1 answer

How can I integrate ethereum wallet on my site??

May 29, 2018 in Blockchain by Johnathon
 • 9,090 points • 3,338 views
0 votes
1 answer

How can I simulate private bitcoin network with random peer discovery?

May 29, 2018 in Blockchain by Mandy
 • 749 views
0 votes
1 answer

Can we say that Applications on hyperledger fabric are centralized?

May 29, 2018 in Blockchain by anonymous
 • 629 views
0 votes
1 answer

How to read a state after writing it into a chaincode?

May 28, 2018 in Blockchain by Christine
 • 15,790 points • 2,080 views
0 votes
1 answer

Curl Script Usage in Ethereum Blockcypher's API

May 28, 2018 in Blockchain by nsv999
 • 5,500 points • 1,470 views
0 votes
1 answer

How is the ledger kept consistent among differnt peers in blockchain?

May 26, 2018 in Blockchain by Shashank
 • 10,400 points • 1,153 views
0 votes
1 answer

how do we register our assets in hyperledger?

May 26, 2018 in Blockchain by Shashank
 • 10,400 points • 1,081 views
+1 vote
4 answers

What is the asset, key-value pair in hyperledger fabric?

May 24, 2018 in Blockchain by Shashank
 • 10,400 points • 3,250 views
0 votes
1 answer

How can I communicate with peer to peer in a hyperledger fabric local network?

May 24, 2018 in Blockchain by Shashank
 • 10,400 points • 1,971 views
0 votes
1 answer

Can there be different smart contract with same logic or a master contract with all configuration?

May 23, 2018 in Blockchain by Shashank
 • 10,400 points • 711 views
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