Trending questions in Blockchain

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1 answer

How to display State Information to a list of participants dynamically?

The if condition mentioned below will never ...READ MORE

Jul 23, 2018 in Blockchain by Omkar
 • 69,180 points • 1,210 views
0 votes
1 answer

How to send ethers to a contract?

Transfer of tokens means you will deduct ...READ MORE

Jul 25, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,055 views
0 votes
1 answer

Çannot implement web3.eth.subscribe on Web3 version 1.0.0-beta.27

As the error suggests, pub/sub is not ...READ MORE

Jun 19, 2018 in Blockchain by Perry
 • 17,100 points
edited Jun 19, 2018 by Perry • 2,600 views
0 votes
1 answer

How can I create multiple connection profiles and multiple nodes in hyperledger composer?

If you want to learn more about ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 1,641 views
0 votes
1 answer

How to write a program to get details of ERC tokens?

You can use Javascript with the Metamask ...READ MORE

Jul 13, 2018 in Blockchain by slayer
 • 29,370 points • 1,560 views
0 votes
1 answer

Can we create a hyperledger fabric with peers from different platforms?

Yes, it is possible. Peers from different ...READ MORE

Jul 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,067 views
0 votes
1 answer

How to use Rest API support in local development environment?

Rest API is not available for Hyperledger ...READ MORE

Jul 11, 2018 in Blockchain by slayer
 • 29,370 points • 1,621 views
0 votes
1 answer

How to return data on execution of invoke function?

You can do this using a response ...READ MORE

Jul 23, 2018 in Blockchain by digger
 • 26,740 points • 1,095 views
0 votes
1 answer

Hyperledger Composer rest server NPM versions

The Hyperledger Composer pre-requisites can be installed ...READ MORE

Jul 13, 2018 in Blockchain by Christine
 • 15,750 points • 1,521 views
0 votes
1 answer

Where is the data stored in blockchain?

The smart contract is just the business ...READ MORE

Jun 29, 2018 in Blockchain by slayer
 • 29,370 points • 2,126 views
0 votes
2 answers

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

Here's a simple example for web3js 1.0.0.beta*: function handler ...READ MORE

Jun 8, 2018 in Blockchain by aryya
 • 7,460 points • 3,021 views
0 votes
1 answer

How are unique public address generated in bitcoin?

In brief, the public addresses are generated ...READ MORE

Jul 16, 2018 in Blockchain by slayer
 • 29,370 points • 1,384 views
0 votes
1 answer

jQuery/ajax - two separate API requests with combined results

You can move the second ajax call ...READ MORE

Jun 19, 2018 in Blockchain by aryya
 • 7,460 points • 2,549 views
0 votes
1 answer

How to transact custom token instead of ethers using JSON rpc?

First create your custom token. Then develop ...READ MORE

Jul 10, 2018 in Blockchain by digger
 • 26,740 points • 1,642 views
0 votes
1 answer

How can I access the details of a given address from a blockchain?

There are two ways to actually do ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 1,588 views
0 votes
1 answer

What if I change Chaincode state in invokeChaincode?

The chaincode state is not changed when ...READ MORE

Jul 13, 2018 in Blockchain by slayer
 • 29,370 points • 1,504 views
0 votes
1 answer

how to learn writing java code for Hyperledger Fabric?

You can learning writing java codes for ...READ MORE

Jul 10, 2018 in Blockchain by slayer
 • 29,370 points • 1,635 views
0 votes
1 answer

How to solve Corda Node Startup Exception?

The error says "port may be in ...READ MORE

Jul 13, 2018 in Blockchain by digger
 • 26,740 points • 1,503 views
0 votes
1 answer

Transaction Id in Bitcoin Blockchain

The TransactionId comes from sending the coin. ...READ MORE

Jul 13, 2018 in Blockchain by Christine
 • 15,750 points • 1,494 views
0 votes
1 answer

How read-write sets is used in hyperledger?

In Hyperledger, read-write sets are used during ...READ MORE

Jul 3, 2018 in Blockchain by digger
 • 26,740 points • 1,927 views
0 votes
1 answer

Include real world data in smart contract

What you are looking for is an ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 1,577 views
0 votes
1 answer

How to change Endorsement policies

Well the good news is that it ...READ MORE

Jul 18, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,273 views
0 votes
1 answer

How to achieve consensus with peers from different departments?

Defining one MSP to represent each division. ...READ MORE

Jul 16, 2018 in Blockchain by digger
 • 26,740 points • 1,356 views
0 votes
1 answer

How to upload data from PC or sensors to blockchain?

you can do it by writing a ...READ MORE

Jul 9, 2018 in Blockchain by slayer
 • 29,370 points • 1,655 views
0 votes
1 answer

Geth 'sendTransaction' not working

When transactions are put in a loop, ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,180 points • 1,905 views
0 votes
1 answer

How to solve Runtime error when querying Hyperledger?

OCI is open container initiative.. The error ...READ MORE

Jul 9, 2018 in Blockchain by slayer
 • 29,370 points • 1,652 views
0 votes
1 answer

Is it possible to claim Bitcoin Cash from an exchange that does not support it?

You can't claim BCH without knowing private ...READ MORE

Jul 17, 2018 in Blockchain by aryya
 • 7,460 points • 1,304 views
0 votes
1 answer

Which is the best decentralized storage apps?

IPFS is a protocol for a distributed ...READ MORE

Jul 19, 2018 in Blockchain by aryya
 • 7,460 points • 1,207 views
0 votes
1 answer

How to limit execution of smart contract only to my dapp?

You can use modifiers to do it ...READ MORE

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 1,294 views
0 votes
1 answer

How to update data in Corda?

Yes, in corda you can store data ...READ MORE

Jul 11, 2018 in Blockchain by digger
 • 26,740 points • 1,549 views
+1 vote
2 answers

Is there any relation between the number of transactions processes and the miners?

the direct answer to your query is ...READ MORE

Jun 19, 2018 in Blockchain by Perry
 • 17,100 points • 1,592 views
0 votes
1 answer

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

You cannot see all available channels,  but you ...READ MORE

Jun 4, 2018 in Blockchain by Perry
 • 17,100 points • 3,129 views
0 votes
1 answer

How to add peers on a running Hyperledger Fabric?

You can not use configtxlator tool for ...READ MORE

Jul 10, 2018 in Blockchain by slayer
 • 29,370 points • 1,570 views
0 votes
1 answer

How to send chaincode error to the calling application?

To pass message all the way to ...READ MORE

Jul 6, 2018 in Blockchain by digger
 • 26,740 points • 1,738 views
0 votes
1 answer

Why hyperledger REST server has PUT method?

Actually, with the PUT method, you don't ...READ MORE

Jul 19, 2018 in Blockchain by aryya
 • 7,460 points • 1,172 views
0 votes
1 answer

What is the max number of participants,assets and transactions?

Yes, there will be limits.. But the ...READ MORE

Jul 13, 2018 in Blockchain by digger
 • 26,740 points • 1,426 views
0 votes
1 answer

Hyperledger remove asset

Data on a blockchain won't ever be ...READ MORE

Jul 4, 2018 in Blockchain by Christine
 • 15,750 points • 1,842 views
0 votes
1 answer

How to build a non-payment application using Ethereum blockchain?

I hope the following link is helpful ...READ MORE

Jul 17, 2018 in Blockchain by digger
 • 26,740 points • 1,250 views
0 votes
1 answer

Updating data of struct to save in chaincode.

You can use a code similar to ...READ MORE

Jul 5, 2018 in Blockchain by slayer
 • 29,370 points • 1,768 views
0 votes
1 answer

How to control visibility of assets in Hyperledger Fabric?

you can use proof of Authority consensus ...READ MORE

Jul 10, 2018 in Blockchain by digger
 • 26,740 points • 1,541 views
0 votes
1 answer

In Hyperledger fabric, how does committer validate the transaction?

Endorsing and committing are just two functions ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
 • 69,180 points • 1,836 views
0 votes
2 answers

How to set permissions within a blockchain?

There are blockchains that allow defining permissions. ...READ MORE

Aug 28, 2018 in Blockchain by Michael
 • 1,634 views
0 votes
1 answer

How to test endorsement policy for the business network in multiple organizations

Give the proposal responses you are receiving ...READ MORE

Jul 6, 2018 in Blockchain by aryya
 • 7,460 points • 1,726 views
0 votes
1 answer

How to solve "'Asset:org.acme.trading.Commodity' does not exist" error?

The error is mainly because the asset ...READ MORE

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 1,221 views
0 votes
1 answer

What is the peer node start in hyperledger?

Nodes are the fundamental element of the ...READ MORE

Jul 9, 2018 in Blockchain by digger
 • 26,740 points • 1,564 views
0 votes
1 answer

What exactly is BigChainDB?

Technically, BigChainDB internally uses RethinkDB as a ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 1,473 views
0 votes
1 answer

Blockchain Python Syntax Error

Look here:  print('Block #{} has been added to ...READ MORE

Jul 13, 2018 in Blockchain by Christine
 • 15,750 points • 1,385 views
0 votes
1 answer

How do I add multiple recipients for transactions via Blockchain API?

Convert the recipes into JSON objects. x = ...READ MORE

Jul 6, 2018 in Blockchain by Perry
 • 17,100 points • 1,691 views
0 votes
1 answer

Where are the transaction details of a smart contract is written in Ethereum?

First ques:where in the blockchain is a ...READ MORE

Jul 11, 2018 in Blockchain by Shashank
 • 10,400 points • 1,460 views
0 votes
1 answer

How to handle memory and processor limitations of nodes in blockchain?

Yes, that's a valid concern. The Bitcoin ...READ MORE

Jul 14, 2018 in Blockchain by Shashank
 • 10,400 points • 1,361 views
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