Trending questions in Blockchain

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1 answer

'ppa:ethereum' error while installing ethereum on ubuntu

First try: sudo apt-get install --reinstall ca-certificates If ...READ MORE

Jul 12, 2018 in Blockchain by slayer
 • 29,370 points • 3,666 views
0 votes
1 answer

Bitcoin address SHA256 pipe gives wrong output

You need to hash the raw byte ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 1,288 views
0 votes
1 answer

Basic pusher connection to cryptsy using javascript

Try this <script src="//js.pusher.com/2.2/pusher.min.js" type="text/javascript"></script> <script type="text/javascript"> var pusher = ...READ MORE

Sep 11, 2018 in Blockchain by slayer
 • 29,370 points • 1,022 views
0 votes
1 answer

python-bittrex missing positional arguments

Looking at the source code from ericsomdahl/python-bittrex For the buy_limit function ...READ MORE

Sep 6, 2018 in Blockchain by slayer
 • 29,370 points • 1,232 views
0 votes
1 answer

Is it possible to claim BCH without knowing private key?

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

Sep 5, 2018 in Blockchain by Christine
 • 15,750 points • 1,265 views
0 votes
1 answer

blockchain.info api_code is missing

Check the blockchain api. it should be $Blockchain ...READ MORE

Aug 22, 2018 in Blockchain by slayer
 • 29,370 points • 1,863 views
0 votes
1 answer

Coinbase spot price SSL Error: does not support SSL at Request

Add 'strictSSL': false to the new client: var btcClient = ...READ MORE

Sep 6, 2018 in Blockchain by digger
 • 26,740 points • 1,216 views
0 votes
1 answer

How to proceed after connecting with hardcoded node?

I am assuming that by hardcoded nodes ...READ MORE

Aug 28, 2018 in Blockchain by Perry
 • 17,100 points • 1,627 views
0 votes
1 answer

How to connect a NS3 node to my local blockchain?

To connect all your nodes with all ...READ MORE

Jul 25, 2018 in Blockchain by digger
 • 26,740 points • 3,066 views
0 votes
1 answer

Getting Bitcoin address from pubkey_hash

The unexpected result is due to encoding. For ...READ MORE

Aug 22, 2018 in Blockchain by digger
 • 26,740 points • 1,828 views
0 votes
1 answer

Bitcoin pool mining using stratum

JSON string shouldn't have any spaces. So ...READ MORE

Aug 20, 2018 in Blockchain by digger
 • 26,740 points • 1,912 views
0 votes
1 answer

restarting bitcoin tesnet docker container, error flag '-ti'

`docker ps -a' shows you the containers, ...READ MORE

Sep 7, 2018 in Blockchain by Prakash
 • 1,131 views
0 votes
1 answer

How to access member functions of smart contract using web3?

I have implemented a similar feature and ...READ MORE

Aug 13, 2018 in Blockchain by slayer
 • 29,370 points • 2,212 views
0 votes
1 answer

First block of bitcoin block gives empty string

Most likely the first byte is not ...READ MORE

Sep 4, 2018 in Blockchain by slayer
 • 29,370 points • 1,257 views
0 votes
1 answer

Not receiving any data from the BitStamp API.

I saw a code online that was ...READ MORE

Aug 21, 2018 in Blockchain by digger
 • 26,740 points • 1,852 views
0 votes
1 answer

Blockchain: send payments to faucetbox

well there it is its work but ...READ MORE

Sep 7, 2018 in Blockchain by Vicky
 • 1,116 views
0 votes
1 answer

Raw block with bitcoinj

This should work: BlockStore blockStore = new MyCustomBlockStore(NETWORK_PARAMETERS); blockStore.getChainHead(); blockChain ...READ MORE

Aug 28, 2018 in Blockchain by slayer
 • 29,370 points • 1,539 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 • 1,445 views
0 votes
1 answer

Android Socket connection to bitcoin node

The checkSum field is mandatory and fellow ...READ MORE

Aug 29, 2018 in Blockchain by slayer
 • 29,370 points • 1,481 views
+1 vote
1 answer

Need to convert bitcoin address function from php to Jquery

Use AJAX. It will be easier to ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 1,135 views
0 votes
1 answer

How to generate pem with openssl?

Here’s the working code: int generatePem(char **pem) { ...READ MORE

Aug 23, 2018 in Blockchain by digger
 • 26,740 points • 1,733 views
0 votes
1 answer

How to generate addresses from a file rather than specific phase

If the file with the passwords is ...READ MORE

Sep 7, 2018 in Blockchain by MI3
 • 1,077 views
0 votes
1 answer

Blockcypher API code error

This code will work: <?php try ...READ MORE

Aug 23, 2018 in Blockchain by slayer
 • 29,370 points • 1,724 views
+1 vote
1 answer

How do I use ZF2 I18n currencyformatter to format bitcoin?

I found the following link: http://www.icu-project.org/apiref/icu4c/classDecimalFormat.html#details If you scroll ...READ MORE

Sep 10, 2018 in Blockchain by digger
 • 26,740 points • 900 views
0 votes
1 answer

How to get amount of bitcoins in php?

I’ve tried this code and it works: <?php function ...READ MORE

Aug 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,675 views
0 votes
1 answer

How to retrieve data from an Ethereum Block?

To get transaction details like Block Hash ...READ MORE

Jul 19, 2018 in Blockchain by Perry
 • 17,100 points • 3,211 views
0 votes
1 answer

Bitcoin payment system not working

I found the problem, it was actually ...READ MORE

Aug 30, 2018 in Blockchain by slayer
 • 29,370 points • 1,407 views
0 votes
1 answer

How to join a peer to a channel in Hyperledger Fabric?

When you run the command: peer channel create ...READ MORE

Jul 31, 2018 in Blockchain by digger
 • 26,740 points • 2,695 views
+1 vote
1 answer

How to generate Bitcoin address?

Convert the hex string back to bytes ...READ MORE

Aug 20, 2018 in Blockchain by slayer
 • 29,370 points • 1,776 views
0 votes
1 answer

Hyperledger Fabric CA "Failed to get user: User not found"

The problem could be because of the ...READ MORE

Jul 23, 2018 in Blockchain by digger
 • 26,740 points • 3,022 views
0 votes
1 answer

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 • 1,418 views
0 votes
1 answer

How to get property of non object in Coinbase API

First, your sendMoney() call is stored into ...READ MORE

Aug 31, 2018 in Blockchain by digger
 • 26,740 points • 1,325 views
0 votes
1 answer

OpenSSL i2o_ECPublicKey not working

When your right something in the buffer, ...READ MORE

Aug 17, 2018 in Blockchain by digger
 • 26,740 points • 1,926 views
0 votes
1 answer

Ethereum smart contract event trigger notification

I have an example here for web3js ...READ MORE

Aug 1, 2018 in Blockchain by slayer
 • 29,370 points • 2,619 views
0 votes
1 answer

Transaction Verification in Blockchain

Yes if your transaction was lucky enough ...READ MORE

Sep 5, 2018 in Blockchain by Christine
 • 15,750 points • 1,102 views
0 votes
1 answer

Hyperledger error while installing binaries

This seems like a problem with the ...READ MORE

Aug 9, 2018 in Blockchain by digger
 • 26,740 points • 2,265 views
0 votes
1 answer

Problem in QRL (Quantum Resistant Node) startup

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

Aug 28, 2018 in Blockchain by Johnathon
 • 9,090 points • 1,447 views
0 votes
1 answer

Hyperledger Blockchain Explorer “'Error: no test specified' ” error

You have run the npm install command ...READ MORE

Aug 9, 2018 in Blockchain by digger
 • 26,740 points • 2,236 views
0 votes
1 answer

Different unicode versions on various devices

Apparently this is not possible since you ...READ MORE

Aug 29, 2018 in Blockchain by Christine
 • 15,750 points • 1,395 views
0 votes
2 answers

Python syntax error because of version conflicts.

As mentioned in the reply to my ...READ MORE

Aug 13, 2018 in Blockchain by Omkar
 • 69,180 points • 2,019 views
0 votes
1 answer

How to create a version control for a simple array using blockchain?

For tracking changes you may simply save ...READ MORE

Aug 31, 2018 in Blockchain by Christine
 • 15,750 points • 1,308 views
0 votes
1 answer

Error while running curl command in Docker Quickstart Terminal

You are using the URL https://goo.gl/iX9dek in ...READ MORE

Jul 12, 2018 in Blockchain by slayer
 • 29,370 points • 3,438 views
0 votes
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 • 1,564 views
0 votes
1 answer

How to check payment in Blockchain.info wallet?

The above error is probably occurring due ...READ MORE

Aug 21, 2018 in Blockchain by Perry
 • 17,100 points • 1,799 views
0 votes
1 answer

Problems using system() commands under Windows

You need to have double \ for ...READ MORE

Sep 5, 2018 in Blockchain by digger
 • 26,740 points • 1,046 views
0 votes
1 answer

How to receive JSON object via POST method?

You need to decode it with json_decode() like this $json ...READ MORE

Aug 28, 2018 in Blockchain by slayer
 • 29,370 points • 1,380 views
0 votes
1 answer

Generating cryptocoin address.

30 in decimal will give you a ...READ MORE

Aug 23, 2018 in Blockchain by slayer
 • 29,370 points • 1,593 views
0 votes
1 answer

How to call smart contract methods from transactions?

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

Aug 13, 2018 in Blockchain by slayer
 • 29,370 points • 2,024 views
+4 votes
2 answers

How do I create a new block in Hyperledger Fabric?

This link might help you: https://github.com/hyperledger/fabric-sample ...READ MORE

Oct 11, 2018 in Blockchain by Sahu
 • 3,566 views
0 votes
1 answer

Base58 encoding in ruby?

Seems like a hexadecimal number is stuck ...READ MORE

Aug 22, 2018 in Blockchain by digger
 • 26,740 points • 1,631 views
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