Most viewed questions in Blockchain

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What is the "eosio" account re:EOS blockchains?

Its private key is stored at config.ini # ...READ MORE

Apr 7, 2022 in Blockchain by Aditya
 • 7,680 points • 661 views
0 votes
0 answers

Corda - How to check if counter party nodes are running?

I have build a CorDapp using "Yo!CorDapp" ...READ MORE

May 28, 2019 in Blockchain by Sriram
 • 160 points • 654 views
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How to protect private blockchain with public blockchain?

Private blockchain has the risk of 51% ...READ MORE

Apr 4, 2022 in Blockchain by Soham
 • 9,730 points • 649 views
+1 vote
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I need to get throughput requirment is BlockSize 10, Transaction 200, transaction type Insert, Arrival Rates 2 to 25 tps

I am not getting ans, even I ...READ MORE

Nov 29, 2019 in Blockchain by Sudhanshu
 • 130 points • 648 views
0 votes
1 answer

Ethereum serpent version conflict error.

Upgrade to the lastest version of ethereum-serpent ...READ MORE

Oct 24, 2018 in Blockchain by Omkar
 • 69,180 points • 645 views
0 votes
1 answer

What did permissioned blockchain solve?

To answer your question, the permissioned networks ...READ MORE

Apr 6, 2022 in Blockchain by Aditya
 • 7,680 points • 634 views
0 votes
0 answers

Blockchain platform in C

I am trying to understand available blockchain ...READ MORE

Apr 4, 2022 in Blockchain by Rahul
 • 9,690 points • 631 views
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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 • 629 views
0 votes
0 answers

BITCOIN payments, OP_RETURN parameter

I want to automate BITCOIN payments and ...READ MORE

Apr 4, 2022 in Blockchain by Rahul
 • 9,690 points • 621 views
0 votes
0 answers

WA: With the wings of the technology, constantly broadening the field of development

According to the history, in the Internet ...READ MORE

Jan 24, 2019 in Blockchain by anonymous
recategorized Jan 24, 2019 by Vardhan • 617 views
0 votes
0 answers

Azure Blockchain , Cannot read property 'uri' of undefined

I am starting with Azure Blockchain. When ...READ MORE

Apr 4, 2022 in Blockchain by Rahul
 • 9,690 points • 607 views
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0 answers

What is the difference between blockchain performance and blockchain scalability?

I really don´t get the difference between ...READ MORE

Apr 4, 2022 in Blockchain by Soham
 • 9,730 points • 601 views
0 votes
0 answers

Are all Blockchain array implementations incorrect?

I found many Blockchain implementations on the ...READ MORE

Apr 4, 2022 in Blockchain by Rahul
 • 9,690 points • 593 views
0 votes
0 answers

Scrypt algorithm output doesn't match up as expected

I am trying to get my head ...READ MORE

Mar 1, 2022 in Blockchain by Soham
 • 9,730 points • 589 views
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0 answers

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 • 579 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 • 573 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 • 572 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 • 570 views
0 votes
0 answers

how does blockchain work?

Jan 7, 2022 in Blockchain by Edureka
 • 13,690 points • 549 views
0 votes
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how can i use blockchain?

Jan 7, 2022 in Blockchain by Edureka
 • 13,690 points • 522 views
0 votes
0 answers

Ontology Blockchain development

I'm analyzing the Ontology blockchain. The core of ...READ MORE

Apr 4, 2022 in Blockchain by Soham
 • 9,730 points • 519 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 • 514 views
0 votes
0 answers

can anyone recommend me blockchain course? or any other learning material that is beginner friendly

can anyone recommend me blockchain course? or ...READ MORE

Nov 16, 2022 in Blockchain by Akash

edited Mar 4 • 357 views
0 votes
0 answers

solidity struct is not generated in java wrapper code

struct itemDetails{ uint256 itemId; string itemName; uint256 itemVal; } mapping(address => itemDetails[]) ...READ MORE

Oct 27, 2023 in Blockchain by sanap
edited Mar 5 • 288 views
0 votes
0 answers

i am having an error called identifier not found or not unique.

i have called a function for owner ...READ MORE

Dec 19, 2022 in Blockchain by virat
edited Mar 4 • 284 views
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0 answers

please can you send me a valid genesis.json file in my email adress : victordievi@gmail.com

when i run geth --datadir ./data init ...READ MORE

May 27, 2023 in Blockchain by victor
edited Mar 5 • 279 views
0 votes
0 answers

How can I code my own cryptocurrency mining software?

I've been researching for months. But I ...READ MORE

Feb 17, 2023 in Blockchain by Turkuaz
edited Mar 5 • 274 views
0 votes
0 answers

How to get output list in solidity funct,i have a struct of Drug,and a table named drugs of Drug:i need to get a list/table of drugs having same name

I try this but it doesn't work! ...READ MORE

Sep 25, 2022 in Blockchain by IMEN
edited Mar 4 • 232 views
0 votes
0 answers

Error while creating channel in hyperledger-fabric

$ ./network.sh createChannel Using docker and docker-compose Creating channel ...READ MORE

Aug 1, 2022 in Blockchain by Shaik
edited Mar 4 • 203 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 • 186 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 • 180 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 • 173 views
0 votes
0 answers

Query LOCAL Bitcoin blockchain with C# .NET

I am trying to check the balance ...READ MORE

Apr 4, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4 • 165 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 • 161 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 • 157 views
0 votes
0 answers

Mapping structure before copying values

Below is the code ``` pragma solidity ^0.4.18; contract Courses ...READ MORE

Aug 22, 2022 in Blockchain by Brijesh
 • 120 points
edited Mar 4 • 155 views
0 votes
0 answers

how does bitcoin prevent double-spending?

can someone help me create a Pseudocode ...READ MORE

Apr 5, 2022 in Blockchain by Soham
 • 9,730 points
edited Mar 4 • 153 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 • 152 views
0 votes
0 answers

Error: 14 UNAVAILABLE: failed to connect to all addresses fabric sdk

hi all, I have 1 org and 2 ...READ MORE

Jan 29, 2021 in Blockchain by arun
edited Mar 4 • 151 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 • 150 views
0 votes
0 answers

How can I update the status of the blockchain?

I issue a transaction and pass an ...READ MORE

Jan 21, 2021 in Blockchain by anonymous
 • 120 points
edited Mar 4 • 150 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 • 149 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 • 147 views
0 votes
0 answers

Channel mychannel, send transactions failed on orderer OrdererClient Reason: timeout after 10000 ms

I am using fabric-samples 2.2 "test-network" application. ...READ MORE

Jan 26, 2021 in Blockchain by menan
edited Mar 4 • 147 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 • 146 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 • 140 views
0 votes
0 answers

Do I need to learn programming languages like python and c to learn block chain examples in ethereum go ?

When I was learning blockchain from edureka ...READ MORE

Jun 25, 2022 in Blockchain by anonymous
edited Mar 4 • 138 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 • 137 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 • 136 views
0 votes
0 answers

In Ethreum Private network, why is the account balance not getting updated after sending some ethers from one account to another?

Please refer to this https://www.edureka.co/blog/ethereum-private-network-tutorial. Unless We ...READ MORE

Feb 1, 2021 in Blockchain by Debendra
edited Mar 4 • 136 views
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