Trending questions in Blockchain

0 votes
1 answer

How many blocks does Wavesnet Blockchain have?

This question is old, and you obviously ...READ MORE

Aug 7, 2018 in Blockchain by Perry
 • 17,100 points • 1,538 views
0 votes
1 answer

Function not working from class

Try this code:  // Add new block ...READ MORE

Aug 16, 2018 in Blockchain by digger
 • 26,740 points • 1,107 views
0 votes
1 answer

How to get the current state of a smart contract?

Hey, you gotta provide the contract code, and ...READ MORE

Aug 1, 2018 in Blockchain by Perry
 • 17,100 points • 1,765 views
0 votes
1 answer

How do I convert to Crystal ruby's multiple assignments of Array

When decomposing an Array into a multiple ...READ MORE

Aug 10, 2018 in Blockchain by Perry
 • 17,100 points • 1,344 views
0 votes
1 answer

Could I share ledger between channels in hyperledger?

You say that you want to use ...READ MORE

Aug 3, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,652 views
0 votes
1 answer

How would I run SpringBoot with the Java-SDK of Hyperledger Fabric java daemon?

I am not familiar with SpringBoot, but ...READ MORE

Jul 4, 2018 in Blockchain by aryya
 • 7,460 points • 2,962 views
0 votes
1 answer

Unable to perform an operation in Ethereum private network

It seems that the Unix socket can't ...READ MORE

Jul 31, 2018 in Blockchain by Shashank
 • 10,400 points • 1,760 views
0 votes
1 answer

Solidity and Web.js for Ethereum blockchain data

Your code is not right. I have ...READ MORE

Jul 30, 2018 in Blockchain by digger
 • 26,740 points • 1,825 views
0 votes
1 answer

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

DISCLAIMER. This may not necessarily be an answer to your ...READ MORE

Jun 16, 2018 in Blockchain by charlie_brown
 • 7,720 points • 3,696 views
0 votes
1 answer

GetState query via chaincode always returns empty value

fabric uses an ccenv image to build the chaincode when ...READ MORE

Jul 17, 2018 in Blockchain by Christine
 • 15,750 points • 2,340 views
0 votes
1 answer

How to use a chaincode that's not on github?

There are two options: If you are not ...READ MORE

Aug 3, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,608 views
0 votes
1 answer

Fabric-node-sdk 1.2 with Fabric 1.1

The line grpc-max-send-message-length: 15 is used to load ...READ MORE

Aug 10, 2018 in Blockchain by slayer
 • 29,370 points • 1,304 views
0 votes
1 answer

Solidity Error: Member "equal" is not available in type(library Assert) outside of storage

You can get error because solidity does ...READ MORE

Aug 9, 2018 in Blockchain by slayer
 • 29,370 points • 1,346 views
0 votes
1 answer

How to call external data using smart contracts?

Smart contracts can not directly call external ...READ MORE

Jul 16, 2018 in Blockchain by slayer
 • 29,370 points • 2,381 views
0 votes
1 answer

Blockchain peer not able to min block in Azure.

After trying out various ideas, making sure ...READ MORE

Aug 21, 2018 in Blockchain by Perry
 • 17,100 points • 926 views
0 votes
1 answer

Error in sending value to an Ethereum Smart Contract.

It is stated in Solidity 4.0 documentation ...READ MORE

Jul 23, 2018 in Blockchain by Perry
 • 17,100 points • 2,080 views
0 votes
1 answer

How does a downed peer connects back to the network in a fabric network?

This might be due to the expected ...READ MORE

Aug 8, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,404 views
0 votes
1 answer

Hyperledger Sawtooth installation JAVA_HOME: path not found

/etc/environment is a bash script, so change the ...READ MORE

Aug 10, 2018 in Blockchain by digger
 • 26,740 points • 1,283 views
+4 votes
5 answers

How is Blockchain a distributed database?

Think of blockchain as a relatively slow, ...READ MORE

Mar 26, 2018 in Blockchain by Christine
 • 15,750 points • 2,553 views
0 votes
1 answer

How do I start mining on my private chain?

You could try deleting the datadir/.etash and ...READ MORE

Jul 13, 2018 in Blockchain by Christine
 • 15,750 points • 2,458 views
0 votes
1 answer

How to make Geth transactions faster?

You can change the speed by the ...READ MORE

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 2,290 views
+1 vote
1 answer

How to change ports through which hyperledger composer installs runtime?

To change the port you have to ...READ MORE

Jul 25, 2018 in Blockchain by slayer
 • 29,370 points • 1,892 views
0 votes
1 answer

How can a composer fabric business network file, be deployed to the bluemix blockchain service today?

You can use Composer with the Bluemix ...READ MORE

Aug 8, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,329 views
0 votes
1 answer

Solidity code to change value of name

Try this for setName: function setName(string _name) public ...READ MORE

Jul 30, 2018 in Blockchain by slayer
 • 29,370 points • 1,713 views
0 votes
1 answer

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

Whenever a smart contract receives ether via ...READ MORE

May 30, 2018 in Blockchain by Perry
 • 17,100 points • 4,309 views
+1 vote
1 answer

Can one pay ICO's token to an ICO consultant?

It is in fact possible to programmatically ...READ MORE

Aug 6, 2018 in Blockchain by Perry
 • 17,100 points • 1,323 views
0 votes
1 answer

How to set web3 solidity variable value?

The setLog transaction has not yet been mined by ...READ MORE

Jul 6, 2018 in Blockchain by Christine
 • 15,750 points • 2,681 views
0 votes
1 answer

How to solve “network state unknown. Review successful transactions manually” error?

There seems to be error in the ...READ MORE

Jul 27, 2018 in Blockchain by digger
 • 26,740 points • 1,772 views
0 votes
1 answer

how to give back each customer a self-defined amount of ether after ICO ends in smart contract?

It's a lot of question. I will ...READ MORE

Aug 1, 2018 in Blockchain by aryya
 • 7,460 points • 1,551 views
0 votes
1 answer

How can I create a feeless ERC-20 token?

You can't have another address pay for ...READ MORE

Aug 7, 2018 in Blockchain by Perry
 • 17,100 points • 1,294 views
0 votes
1 answer

Zip attachment in Corda: How to read zip file using InputStream?

You can not directly read the content ...READ MORE

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 1,822 views
0 votes
1 answer

How is running the asset_management.go different from running a simple chaincode like chaincode_example02.go

The chaincode workflow you mentioned is correct, ...READ MORE

Aug 3, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,424 views
+1 vote
1 answer

Error attempting installing ethermint

I faced the same issue. Here's where ...READ MORE

Aug 2, 2018 in Blockchain by Christine
 • 15,750 points • 1,427 views
0 votes
1 answer

How do I get updates in every blockchain append?

If you are really want to get ...READ MORE

Aug 9, 2018 in Blockchain by aryya
 • 7,460 points • 1,189 views
0 votes
1 answer

Blockchain PoC Implementation

It depends on your use case like ...READ MORE

Aug 1, 2018 in Blockchain by Christine
 • 15,750 points • 1,526 views
0 votes
1 answer

How is consensus reached when there are only two peers in Hyperledger Fabric?

The consensus is achieved in the ordering ...READ MORE

Jul 5, 2018 in Blockchain by digger
 • 26,740 points • 2,658 views
0 votes
1 answer

How do nodes communicate with each other in hyperledger?

First let me tell you that there ...READ MORE

Jul 17, 2018 in Blockchain by slayer
 • 29,370 points • 2,130 views
0 votes
1 answer

Why is there no infinite loop problem in Hyperledger Fabric?

Hyperledger uses a timeout mechanism for chaincode ...READ MORE

Jul 30, 2018 in Blockchain by digger
 • 26,740 points • 1,585 views
0 votes
1 answer

Why we should create two connection profiles for one organization, i.e 1. Org1 only and Org1 and Org2 ?

The need for the distinct Org1 and ...READ MORE

Aug 6, 2018 in Blockchain by aryya
 • 7,460 points • 1,255 views
+3 votes
2 answers

How to run ethereumjs using Node.JS

You need to install testrpc globally on ...READ MORE

Mar 27, 2018 in Blockchain by ned_crew
 • 1,610 points • 2,492 views
0 votes
1 answer

How do i startup the quantum resistant ledger (QRL) node?

There is an open issue in GitHub ...READ MORE

Jul 31, 2018 in Blockchain by Shashank
 • 10,400 points • 1,487 views
0 votes
1 answer

How to solve "Failed to deserialize creator identity error"?

It seems like the problem is caused ...READ MORE

Jul 13, 2018 in Blockchain by slayer
 • 29,370 points • 2,263 views
0 votes
1 answer

Using web3swift to create raw transaction.

Here you go: var options = Web3Options.defaultOptions() options.gasLimit = ...READ MORE

Jul 31, 2018 in Blockchain by digger
 • 26,740 points • 1,468 views
0 votes
1 answer

How to setup rule in ACL file of Hyperledger Composer to validate against enum?

Use these two ACL rules: ...READ MORE

Jul 19, 2018 in Blockchain by Perry
 • 17,100 points • 1,975 views
0 votes
1 answer

What is the expiry time of blockchain wallet address?

There is no expiry time for your ...READ MORE

Jul 26, 2018 in Blockchain by slayer
 • 29,370 points • 1,683 views
0 votes
1 answer

Ethereum wallet not able to make transaction

I can see that the nonce you ...READ MORE

Aug 9, 2018 in Blockchain by slayer
 • 29,370 points • 1,075 views
0 votes
1 answer

How do I calculate number of full nodes in bitcoins/altcoins?

You can not calculate/estimate the total number ...READ MORE

Jul 17, 2018 in Blockchain by Shashank
 • 10,400 points • 2,065 views
0 votes
1 answer

How to create users on hyperledger and how to assign policies to the created users?

First the users need to establish identity ...READ MORE

Jul 10, 2018 in Blockchain by slayer
 • 29,370 points • 2,360 views
0 votes
1 answer

Building Hyperledger Fabric Blockchain

To build your own app using Hyperledger ...READ MORE

Aug 9, 2018 in Blockchain by slayer
 • 29,370 points • 1,042 views
0 votes
1 answer

npm hfc@0.6.2 not properly installing

this is harmless, the hfc module should ...READ MORE

Jul 24, 2018 in Blockchain by charlie_brown
 • 7,720 points • 1,739 views
Page:

Most popular tags

"PMP®","PMI®", "PMI-ACP®" and "PMBOK®" are registered marks of the Project Management Institute, Inc. MongoDB®, Mongo and the leaf logo are the registered trademarks of MongoDB, Inc.