Most viewed questions in Blockchain

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Not able to deploy smart contract to private network

This could happen due to 3 possible ...READ MORE

Jan 18, 2019 in Blockchain by Omkar
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1,075 views
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1 answer

PHP. Bitcoin to Ukrainian Hrivna price ticker

nstead of dividing the values - i ...READ MORE

Sep 11, 2018 in Blockchain by slayer
• 29,370 points
1,074 views
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What's the difference between ethereum and chain?

Ethereum is an open source blockchain platform ...READ MORE

Sep 12, 2018 in Blockchain by Perry
• 17,100 points
1,072 views
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Blockchain.info wallet API callback

I am implementing blockchain.info wallet api to ...READ MORE

Jul 4, 2018 in Blockchain by sabby
• 4,370 points
1,071 views
+1 vote
2 answers

Hyperledger - Can I have some instances on one network while on a Virtual Box?

Yes, you can connect multiple instances to ...READ MORE

Aug 1, 2018 in Blockchain by Omkar
• 69,220 points
1,071 views
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LIVE PODCAST THREAD** (#2 Are Smart contracts really the Future?)

Hey guys this is the link to ...READ MORE

Jun 28, 2019 in Blockchain by Vardhan
• 13,150 points
1,069 views
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1 answer

Not able to migrate truffle project even after running testrpc

Maybe you forgot to compile the project ...READ MORE

Dec 11, 2018 in Blockchain by Omkar
• 69,220 points
1,069 views
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How Hyperledger projects are different from each other?

Hyperledger includes a range of business Blockchain ...READ MORE

Jul 12, 2018 in Blockchain by shweta
• 440 points
1,068 views
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1 answer

Web is not injected by metamask

You need to do import the Web3 ...READ MORE

Oct 3, 2018 in Blockchain by slayer
• 29,370 points
1,064 views
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1 answer

Vertically centering text in a div

Try this code: .smallUnitBox { ...READ MORE

Sep 3, 2018 in Blockchain by digger
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1,063 views
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How to generate coin address using bitcoin-ruby?

The only difference between the addresses is ...READ MORE

Aug 29, 2018 in Blockchain by slayer
• 29,370 points
1,063 views
+1 vote
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How do i add images in Hyperledger?

You can not directly add an image ...READ MORE

Aug 10, 2018 in Blockchain by Omkar
• 69,220 points
1,062 views
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1 answer

Can someone help me conceptualizing blockchain for supply chain demo?

I think you should take a step ...READ MORE

Jul 17, 2018 in Blockchain by Shashank
• 10,400 points
1,061 views
0 votes
1 answer

How to create raw transaction using web3swift?

var options = Web3Options.defaultOptions() options.gasLimit = BigUInt(21000) options.from = ...READ MORE

Sep 17, 2018 in Blockchain by slayer
• 29,370 points
1,059 views
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Unable to request channel creation using Rest Api

I'd recommend taking a look at the ordering ...READ MORE

Jul 16, 2018 in Blockchain by Perry
• 17,100 points
1,058 views
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How secure is to implement blockchain at a smaller scale??

Blockchain relies on the number of nodes ...READ MORE

Apr 18, 2018 in Blockchain by Perry
• 17,100 points
1,058 views
0 votes
1 answer

How to add https security for Node js?

You need to add the key and cert to the createServer function. const options ...READ MORE

Aug 10, 2018 in Blockchain by digger
• 26,740 points
1,057 views
+1 vote
2 answers

What is a blockchain and ethereum?

Some of the use-cases are: Healthcare Medical records are ...READ MORE

Aug 9, 2018 in Blockchain by Omkar
• 69,220 points
1,057 views
+1 vote
1 answer

Permission is denied in Oracle VM when trying to move multichain util, multichaind and multichain-cli from tmp to /usr/local/bin

You will need root permissions to move a file ...READ MORE

Apr 8, 2019 in Blockchain by Omkar
• 69,220 points
1,056 views
0 votes
1 answer

How can I inject and use this javascript library (web3) with JavascriptCore

The web3.js library has dependencies on bignumber.js and crypto-js.js (See dependencies here). You will ...READ MORE

Oct 8, 2018 in Blockchain by Omkar
• 69,220 points
1,056 views
0 votes
1 answer

How to search inside List for a specific value?

You can amend your ORM wrapper such that ...READ MORE

Jun 27, 2018 in Blockchain by Christine
• 15,790 points
1,056 views
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1 answer

What encoding or data type can be used to get alphanumeric string in elixir?

Integers in Elixir are arbitrary precision integers, ...READ MORE

Aug 31, 2018 in Blockchain by digger
• 26,740 points
1,055 views
+1 vote
1 answer

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

The transaction certificates don't actually address privacy ...READ MORE

Apr 17, 2018 in Blockchain by Perry
• 17,100 points
1,054 views
0 votes
1 answer

"set RNG(RandomUtils.Random) before generating random numbers" error

Use the following code, you just have ...READ MORE

Jul 5, 2018 in Blockchain by slayer
• 29,370 points
1,053 views
0 votes
1 answer

Who is miners in smart contracts?

Proof of work is used as a ...READ MORE

Jul 3, 2018 in Blockchain by Omkar
• 69,220 points
1,053 views
0 votes
1 answer

Cant locate english.txt file while intalling Python Bitcoin module

This is related to a pybitcointools bug where the ...READ MORE

Aug 30, 2018 in Blockchain by slayer
• 29,370 points
1,052 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
1,052 views
0 votes
1 answer

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

yes, ethereum is an open source platform ...READ MORE

Apr 18, 2018 in Blockchain by Christine
• 15,790 points
1,050 views
0 votes
1 answer

Ethereum/BSC blockchain transaction data

The "Tokens Transferred" information comes from event ...READ MORE

Mar 24, 2022 in Blockchain by Rahul
• 9,680 points
1,049 views
0 votes
1 answer

Ethereum "truffle server" gives error: TypeError: fsevents is not a constructor

Looks like you have files missing.  Try creating project with: truffle ...READ MORE

Nov 30, 2018 in Blockchain by Omkar
• 69,220 points
1,049 views
0 votes
1 answer

Cant install python module for python3.6 to use Jsonrpc for altcoin

Try this  VERSION=0.1 python3 setup.py install and there's also ...READ MORE

Sep 7, 2018 in Blockchain by digger
• 26,740 points
1,048 views
0 votes
1 answer

Getting error while building Bitcoind on MAC OS

First of all try building a non-GUI ...READ MORE

Aug 20, 2018 in Blockchain by slayer
• 29,370 points
1,048 views
0 votes
1 answer

How do I get the total amount sent to an address?

If you are using web3JS you can ...READ MORE

Jul 19, 2018 in Blockchain by Johnathon
• 9,090 points
1,047 views
0 votes
1 answer

How to solve "error trying install composer runtime" in Hyperledger composer?

I think the docker-compose tool is not ...READ MORE

Jul 17, 2018 in Blockchain by slayer
• 29,370 points
1,046 views
0 votes
1 answer

Ethereum generating genesis Python Syntax

print in python3 is a method not a ...READ MORE

Oct 10, 2018 in Blockchain by Omkar
• 69,220 points
1,045 views
0 votes
1 answer

How to extend Composer rest Server ?

 It looks like you want to query ...READ MORE

Sep 20, 2018 in Blockchain by Perry
• 17,100 points
1,043 views
0 votes
1 answer

Kotlin Convert Bitcoin value into Satoshi Value

java.lang.NumberFormatException: For input string: "45,586" This means ...READ MORE

Apr 12, 2022 in Blockchain by Soham
• 9,710 points
1,042 views
0 votes
1 answer

Hyperledger Composer: How to subscribe to and see events from transactions?

Here's the problem: this.businessNetworkConnection.on('events' //This should be changed ...READ MORE

Nov 14, 2018 in Blockchain by Omkar
• 69,220 points
1,042 views
0 votes
1 answer

How do Ethereum node compete for blocks?

A lot of computing time is wasted. ...READ MORE

Sep 6, 2022 in Blockchain by Jojo

edited Mar 5 1,042 views
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1 answer

What is the difference between o and --> in Fabric Composer?

'o' indicates has-a relationship '-->' indicates pass by ...READ MORE

Aug 25, 2018 in Blockchain by Perry
• 17,100 points
1,042 views
0 votes
1 answer

How can i copy block aspects in hyperledger fabric?

There are three ways you can do ...READ MORE

Jul 6, 2018 in Blockchain by digger
• 26,740 points
1,042 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
1,040 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
1,039 views
0 votes
0 answers

AXC: Conform to the trend of the times and to be a pioneer in the development of the industry

On January 2, 2019, Ali Baba DAMO ...READ MORE

Jan 23, 2019 in Blockchain by anonymous

retagged Jan 23, 2019 by Vardhan 1,038 views
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1 answer

Hyperledger Fabric: ./byfn.sh -m up failed

Try adding GODEBUG=netdns=go to the environment variables ...READ MORE

Oct 26, 2018 in Blockchain by Omkar
• 69,220 points
1,035 views
0 votes
2 answers

Saving a string in python associated with an API

You can create a list and add ...READ MORE

Sep 10, 2018 in Blockchain by Joy
1,034 views
0 votes
1 answer

How to get current value of bitcoin?

You can use json_decode to transform it ...READ MORE

Aug 20, 2018 in Blockchain by digger
• 26,740 points
1,034 views
0 votes
1 answer

How to prevent the smart contract from being modified and deployed in Hyperledger network?

Smart contracts can be definitive if they ...READ MORE

Aug 10, 2018 in Blockchain by Perry
• 17,100 points
1,034 views
+1 vote
1 answer

How can I initiate a transaction on ethereum private network using mobile device?

There is no android wallet to connect ...READ MORE

Apr 18, 2018 in Blockchain by Shashank
• 10,400 points
1,034 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
• 15,790 points
1,033 views