Trending questions in Blockchain

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(bitcoin) Calculate hash from getwork function - how to do it?

This is correct as there is a ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,730 points • 1,458 views
0 votes
0 answers

Blake2b-512 with ED25519 in PHP with NanoSalt library (Nano Crypto)

I have been trying to generate a Nano ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points • 1,283 views
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Does timestamp also change with nonce to calculate block hash in blockchain? How hash is calculated?

Do we need to update date timestamp ...READ MORE

Mar 8, 2022 in Blockchain by Soham
 • 9,730 points • 1,058 views
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1 answer

SHA256 Hash doesn't match the one listed on Bitcoin Wiki

The problem occurring here is that you ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,730 points • 1,365 views
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0 answers

How to get Bitcoin value for corresponding USD value in ASP.NET C#?

I want to get the Bitcoin value ...READ MORE

Mar 1, 2022 in Blockchain by Soham
 • 9,730 points • 1,359 views
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0 answers

Private ethereum blockchain mining on a Raspberry Pi - is it possible?

I am trying to write a private ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points • 1,218 views
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How to delete an image saved in IPFS blockchain?

I am working on a blockchain based ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points • 1,187 views
0 votes
1 answer

How exchanges (Binance, Coinbase) record user trade into blockchain

Merkle tree will allow us to multiplex ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,730 points • 1,296 views
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0 answers

Can a blockchain be Centralised? Will it be called as Blockchain if it is centralised?

I was reading a lot of articles ...READ MORE

Mar 3, 2022 in Blockchain by Soham
 • 9,730 points • 1,094 views
0 votes
1 answer

Crypto Currency ICO process

To answer your question, only for the ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,730 points • 1,207 views
0 votes
1 answer

Get amount of Bitcoins at an address with PHP

While checking the Coinbase address balance, the ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,730 points • 1,194 views
0 votes
1 answer

Blockchain tutorials for double spending and signature verification

To answer your question, regardless of how ...READ MORE

Feb 24, 2022 in Blockchain by Aditya
 • 7,680 points • 1,336 views
0 votes
1 answer

Bitcoin Price that updates in specific Seconds

The better way to do so is ...READ MORE

Feb 28, 2022 in Blockchain by Soham
 • 9,730 points • 1,162 views
0 votes
0 answers

How to Query Transaction on Hyperledger Sawtooth?

I want to perform CRUD operations in ...READ MORE

Mar 8, 2022 in Blockchain by Soham
 • 9,730 points • 825 views
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Store Images on/off blockchain? which is better?

I have been using hyperledger fabric and ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points • 900 views
0 votes
1 answer

What is a decentralized-distributed system? Why Blockchain is decentralized-distributed system?

The essential understanding of what Distributed systems ...READ MORE

Feb 24, 2022 in Blockchain by Aditya
 • 7,680 points • 1,184 views
0 votes
0 answers

Blockchain and HyperLedger Fabric difference

While I was trying to understand blockchain ...READ MORE

Mar 3, 2022 in Blockchain by Soham
 • 9,730 points • 876 views
0 votes
0 answers

Trying To Open Bitcoin Miner On Terminal

Trying to open a file, but the ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points • 794 views
0 votes
0 answers

How to get AUD price of bitcoin at a particular date

I am trying to find out how ...READ MORE

Mar 1, 2022 in Blockchain by Soham
 • 9,730 points • 867 views
0 votes
0 answers

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

As I said in the title, why ...READ MORE

Mar 10, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 445 views
0 votes
0 answers

What is an optimal size of a consortium in consortium blockchain?

In order to save energy on consensus ...READ MORE

Mar 10, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 424 views
0 votes
0 answers

Hyperledger Fabric 1.4 Private data collection

Hyperledger fabric provides inbuilt support storing offchain ...READ MORE

Mar 10, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 418 views
0 votes
0 answers

How is data entry in private and consortium blockchains trusted?

Suppose we have a consortium blockchain like ...READ MORE

Mar 10, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 306 views
0 votes
0 answers

Blockchain and HyperLedger Fabric difference

While I was trying to understand blockchain ...READ MORE

Mar 3, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 405 views
0 votes
0 answers

Get bitcoin historical data

I want to do my own bitcoin ...READ MORE

Mar 3, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 393 views
0 votes
0 answers

How would calculate the exchange rate of Bitcoin/GBP?

I've got an API that returns the ...READ MORE

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4, 2025 • 349 views
0 votes
0 answers

How can I save the information that the contract stores in Blockchain to my laptop?

I have written a smart contract in ...READ MORE

Feb 23, 2022 in Blockchain by mehran
edited Mar 4, 2025 • 336 views
0 votes
0 answers

Blockchain Development Company

If you are one of those entrepreneurs ...READ MORE

Feb 7, 2022 in Blockchain by Olivia
 • 120 points • 734 views
0 votes
10 answers

How to solve gradle build failed error?

I migrated the project to a different ...READ MORE

Dec 7, 2018 in Blockchain by Rajat
 • 53,322 views
0 votes
0 answers

how to fork a Ethereum chain

how to fork a Ethereum blockchain ? what ...READ MORE

Feb 4, 2022 in Blockchain by pawan
edited Mar 4, 2025 • 318 views
0 votes
0 answers

Uber like App on blockchain: The Project Model || How to build one ?

Suppose I wanna launch a uber-like carpooling ...READ MORE

Jan 27, 2022 in Blockchain by Saswata
edited Mar 4, 2025 • 374 views
0 votes
1 answer

what is blockchain private key?

A cryptocurrency user's private key is what ...READ MORE

Jan 7, 2022 in Blockchain by Edureka
 • 12,730 points • 1,044 views
+1 vote
3 answers

Removing double quotes from a string from JSON response in PHP

Just remove the json_encode call, and it should work: $resp ...READ MORE

Sep 12, 2018 in Blockchain by digger
 • 26,740 points • 48,177 views
0 votes
0 answers

how does blockchain work?

Jan 7, 2022 in Blockchain by Edureka
 • 13,740 points • 767 views
0 votes
0 answers

how can i use blockchain?

Jan 7, 2022 in Blockchain by Edureka
 • 13,740 points • 732 views
0 votes
2 answers

Chaincode Installation failed, Hyperledger Fabric

I had the same issue. I had ...READ MORE

Feb 15, 2022 in Blockchain by Pranitha Sanda
edited Mar 5, 2025 • 7,176 views
0 votes
1 answer

Javascript ES6 TypeError: Class constructor Client cannot be invoked without 'new'

Hello @kartik, In package.json you can use targets configuration with @babel/preset-env. ...READ MORE

May 5, 2020 in Blockchain by Niroj
 • 82,800 points • 24,209 views
0 votes
0 answers

not working eth.sendTransaction

https://www.edureka.co/blog/ethereum-private-network-tutorial/amp/ after below steps, not able to send/transact ...READ MORE

Oct 11, 2021 in Blockchain by rathnamachary
 • 120 points • 1,198 views
+1 vote
1 answer

Error: failed to create deliver client for orderer: orderer client failed to connect to orderer.example.com:7050: failed to create new connection: context deadline exceeded

It is caused because of firewall restriction, ...READ MORE

Nov 2, 2022 in Blockchain by Prudhvi Krishna Menavalli
edited Mar 5, 2025 • 5,265 views
0 votes
0 answers

How can i transfer eth automotically in some seconds (from one address to another)

How can I transfer ETH automatically from ...READ MORE

Aug 17, 2021 in Blockchain by Epic
edited Mar 4, 2025 • 465 views
0 votes
1 answer

How to print a message in Solidity??

You can use the require function to do this. ...READ MORE

Dec 12, 2018 in Blockchain by Omkar
 • 69,180 points • 17,017 views
0 votes
0 answers

how to Build Bitcoin address and balance database?

How to build Bitcoin Address and Balance ...READ MORE

Jul 25, 2019 in Blockchain by Raj
 • 180 points • 1,752 views
0 votes
0 answers

how do i develop webpage that has login with a Wallet. ? How do you do that? And how does it have to be coded?

how do i develop webpage that has ...READ MORE

Jul 16, 2021 in Blockchain by Femmy
edited Mar 4, 2025 • 382 views
0 votes
0 answers

Automatically Transfer ETH

Hello,  I don't know anything coding.    Is there any ...READ MORE

Jul 14, 2021 in Blockchain by Hacker
edited Mar 4, 2025 • 397 views
0 votes
0 answers

ERROR: for eb97c8f5425c_orderer3.example.com a bytes-like object is required, not 'str'

getting this error when run "docker-compose up ...READ MORE

Jun 27, 2021 in Blockchain by Melisha
edited Mar 4, 2025 • 381 views
0 votes
0 answers

send automatically

I have few child wallets and a ...READ MORE

Jun 6, 2021 in Blockchain by Hamed
edited Mar 4, 2025 • 349 views
0 votes
0 answers

Is there a way to automatically send eth from one wallet to another?

I have a wallet in which all ...READ MORE

May 21, 2021 in Blockchain by Rajeev
edited Mar 4, 2025 • 367 views
0 votes
0 answers

How to change the transaction in ganache?

I do not know how to change ...READ MORE

Apr 16, 2021 in Blockchain by Gia Huy
edited Mar 4, 2025 • 365 views
0 votes
1 answer

How to set the ERC20 token price in respect to ether in solidity?

Hi, @Jas, In Solidity, you don't directly set ...READ MORE

Nov 9, 2020 in Blockchain by anonymous
 • 10,440 points • 5,857 views
+1 vote
5 answers

How to solve "truffle: command not found" error in blockchain?

First try restarting the system and then ...READ MORE

Jul 16, 2018 in Blockchain by slayer
 • 29,370 points • 13,828 views
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