Trending questions in Blockchain

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Where does Hyperledger fabric store the public key and private key of the user?

It signs the transaction with its private key ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 1,126 views
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1 answer

REQUEST_TIMEOUT when instantiating my mart contarct on IBM blockchain Hyperledger Fabric network IBM. VS CODE is used for Hyperledger Fabric network

 If you're seeing a REQUEST_TIMEOUT error it's ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 1,103 views
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1 answer

What's the difference between distributed hashtable technology and the bitcoin blockchain?

A Distributed Hash Table is simply a key-value ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 1,066 views
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1 answer

blockchain api payment module

No curly braces after your if statement. ...READ MORE

Apr 11, 2022 in Blockchain by Soham
 • 9,710 points • 1,050 views
0 votes
1 answer

Naives Bayes Classifier for bag of vectorized sentences

The error is basically the [X_train] which ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 1,036 views
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1 answer

blockchain consensus 51% vs number of nodes validation

51% is an attack vector for Proof ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 1,166 views
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1 answer

Is it possible to get wallet balance passing the wallet address on any cryptocurrency?

For Ethereum the API is called web3.eth.getBalance. There ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 1,157 views
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1 answer

Bitcoin blockchain rookie question: how is nonce (the secret number added to each block) generated?

It isn't a secret number but it's ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 1,152 views
0 votes
1 answer

Why do bitcoin uses UTXO model? What are the advantages UTXO mechanism provides out of the box?

Bitcoin nodes maintain a set of all ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
 • 9,680 points • 1,423 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 • 988 views
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1 answer

How to resolve blockchain dns using Python Requests

BDNS is offline and I don't know if ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 1,104 views
0 votes
1 answer

Protect photo ownership using blockchain

Photo ownership can be protected using Blockchain ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 1,068 views
0 votes
1 answer

what is the meaning of the term 'airdrops' in cryptocurrency?

Cryptocurrency vocabulary is difficult to pin down. ...READ MORE

Apr 12, 2022 in Blockchain by Rahul
 • 9,680 points • 939 views
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1 answer

Is Ganache Decentralized?

1. Can blockchain be implemented without cryptocurrency? Yes. ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 930 views
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1 answer

Currency Conversion using PHP

Please find below an example of converting ...READ MORE

Apr 6, 2022 in Blockchain by Soham
 • 9,710 points • 1,095 views
0 votes
1 answer

Bitcoin - BitGO - Save all wallet objects into Array of Objects

 After noticing your following code: docs.forEach(function(address) { console.log(address); var ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 912 views
0 votes
1 answer

Why do we not use Istanbul Byzantine Fault Tolerance (IBFT) in Public Blockchains?

The use of the IBFT consensus involves ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 876 views
0 votes
1 answer

How to swap an Ethereum ERC-20 and Neo NEP5 token with a smart contract?

Each blockchain is its own separated administration. ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 878 views
0 votes
1 answer

Bitcoin ticker + fontawesome

Font Awesome arrow up is displayed like ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 865 views
0 votes
1 answer

Why do bitcoin uses UTXO model? What are the advantages UTXO mechanism provides out of the box?

Basically, Bitcoin nodes maintain a set of ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 977 views
0 votes
1 answer

How To Get BTC Price on Binance from Binance API

In the Script environment for Apps, the ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,710 points • 2,559 views
0 votes
1 answer

Is there a pricing calculator for azure-blockchain-workbench or azure baas using hyperledger fabric?

The cost of Blockchain Workbench is an ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 816 views
0 votes
1 answer

CryptoCurrency NODE.js Web3 Ethereum - Can't connect to TESTRPC

Your connection is working. To return an ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 818 views
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0 answers

Can third party send an ERC20 token transaction to the Ethereum blockchain?

I want to create a smart contract ...READ MORE

Apr 4, 2022 in Blockchain by Rahul
 • 9,680 points • 951 views
+1 vote
0 answers

How to check a Bitcoin wallet balance from first generated address (m/44'/0'/0'/0/0)

Is there a way to check a ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,710 points • 2,338 views
0 votes
1 answer

Ethereum Smart Contract Blocking

Since transactions from a block are executed ...READ MORE

Apr 12, 2022 in Blockchain by Rahul
 • 9,680 points • 751 views
+1 vote
0 answers

How to check a Bitcoin wallet balance from first generated address (m/44'/0'/0'/0/0)

Is there a way to check a ...READ MORE

Mar 9, 2022 in Blockchain by Soham
 • 9,710 points • 2,070 views
0 votes
1 answer

Get bitcoin historical data

Actually, you CAN get the whole Bitcoin ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 893 views
0 votes
1 answer

Using zCash through BitcoinJ

Your code isn't accounting for the format ...READ MORE

Apr 12, 2022 in Blockchain by Rahul
 • 9,680 points • 714 views
0 votes
1 answer

Full nodes for ETH, BTC, and USDT in one server

You don't need to run another node ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
 • 9,680 points • 1,127 views
0 votes
1 answer

Font Awesome 5 - why aren't icons like bitcoin, facebook, twitter showing?

You also need to use the brands.css ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
 • 9,680 points • 1,125 views
0 votes
1 answer

How would calculate the exchange rate of Bitcoin/GBP?

You simply divide 1 by the resulting ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 683 views
0 votes
1 answer

How to trigger change blockchain network request on MetaMask

was finally able to find the answer: await ...READ MORE

Mar 31, 2022 in Blockchain by Rahul
 • 9,680 points • 1,119 views
0 votes
1 answer

In-App Purchase vs. support developer with bitcoin

Not only do I think this will ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 686 views
0 votes
1 answer

Why is Proof of Work necessary in Blockchain?

You are missing the double-spending problem. If ...READ MORE

Apr 12, 2022 in Blockchain by Soham
 • 9,710 points • 668 views
0 votes
1 answer

Storing Data on Blockchain

Yes, this is correct that if you ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 816 views
0 votes
1 answer

Where actual blockchain state data stored : in memory , in file or in database?

Bitcoin nodes keep the raw block data ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 768 views
0 votes
1 answer

understanding cryptocoins mining profit calculation

 The problem is that the miner you ...READ MORE

Apr 12, 2022 in Blockchain by Rahul
 • 9,680 points • 634 views
0 votes
1 answer

NodeJs blockchain on private ethereum

From what I understand, your JS code ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 805 views
0 votes
1 answer

What is blockchain and Ethereum? Where is it used?

A blockchain is an immutable, sequential chain of ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 614 views
0 votes
1 answer

Blockchain POC on DApps in Java

You could be a little more specific ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 745 views
0 votes
1 answer

IBM Cloud - Blockchain platform | Problem creating MSP definition

I have found a solution by doing ...READ MORE

Apr 11, 2022 in Blockchain by Rahul
 • 9,680 points • 635 views
0 votes
1 answer

Can not add peer in local ethereum blockchain

You have port 30305 running in your ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 743 views
0 votes
1 answer

Candlestick chart on bitcoinwisdom

In searching bitcoinwisdom's forums, I found a ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 783 views
0 votes
0 answers

Does the crypto wallet "Exodus" reveal your IP Address?

I've read that "SPV Wallets," also called ...READ MORE

Apr 4, 2022 in Blockchain by Rahul
 • 9,680 points • 771 views
0 votes
1 answer

How to store cryptocurrency balance without causing floating point errors in ruby/rails

 I suggest storing the values as integers. ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 726 views
0 votes
2 answers

Difference between various blockchain protocols

There are several differences between those blockchain ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 702 views
0 votes
1 answer

How to get bitcoins for testing?

In order to see how Bitcoin works, ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 724 views
0 votes
1 answer

PHP. Bitcoin to Ukrainian Hrivna price ticker

I would suggest, that instead of dividing ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 679 views
0 votes
1 answer

BITCOIN TO USD API

You can use blockchain.info API: URL: https://blockchain.info/ticker Response: { "USD" : ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 712 views
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