Stack Overflow
Stack Overflow

Questions tagged [decentralized-applications]

A decentralized application (Dapp, dApp or DApp) is an application that is run by many users on a decentralized network with trustless protocols.

259 questions
0
votes
1 answer

Blockchain: What if no users are online to verify new transactions?

Alright so I'm trying wrap my head around this whole big topic, including smart contracts. What I don't understand is, with Blockchain technology we rely on others doing the verification of my proposed transactions (my new block). This means that if…
mkV
  • 3
  • 1
0
votes
1 answer

Byzantine General Problem for multiple nodes

I am confused about BGP. The consensus can be achieved for the distributed network of n nodes if number of faulty nodes are less than n/2 right? Then if we follow general rules, in the following diagram, the nodes in bigger circle will try to…
Ruchit Patel
  • 733
  • 1
  • 11
  • 26
0
votes
2 answers

Using git Without a Server Temporarily

So for reasons, my small team is not able to access the server our git repo is on for the indefinite future. We do all have local copies of the most recent changes for the repo though, and would like to continue to contribute to it. Once we have…
user4367461
0
votes
1 answer

The concept of building a blockchain app without transaction

I want to build a blockchain application for users to check the authenticity of data on my product. I am planning to put a QR code on my products for users to scan it and reach my blockchain application (e.g. website) to check the production date…
potato
  • 203
  • 2
  • 15
0
votes
1 answer

how to fixed Module not found : syntax error

I follow the Getting Started, Writing a Secret Contract, Creating a React Front-End, but I get this Syntax Error about enigma_dapp/client/src/App.js I copy the Creating a React Front-End said App.js, Error follow the pictures Picture as following…
Cheng Kao
  • 19
  • 2
0
votes
1 answer

How to make a smart contract only executable when called by specific verified addresses?

I am trying to make a decentralized web application where if a condition is met a contract would be executed and could send eth to an address. for example, if my website were to have a list of users who have registered accounts and each user has an…
Benjamin
  • 57
  • 1
  • 5
0
votes
1 answer

Can two endorsing peers in hyperledger Fabirc sync themselves to each other after a network communication loss?

I want two know that if two peers are in a same organization and lets assume they are 1 km apart connected through wifi. Now both are endorsing peers and saves transactions on themselves. so what if every peer gets disconnected from the internet and…
deenario
  • 11
  • 4
0
votes
0 answers

Use local Metamask account with Infura node

I'm building a DApp that sends ERC20 Tokens from a browser Metamask account to an escrow contract on the Rinkeby testnet. I'm using a Rinkeby node from Infura, and when I call web3.eth.accounts[0] or web3.eth.getAccounts(), they both return an empty…
Abhi Thosar
  • 57
  • 1
  • 5
0
votes
2 answers

Are decentralised applications storing full underlying blockchain on my device?

Let's say I have few dapps installed on my smartphone. Are they storing full blockchain they are using on my device, or where it's stored?
zmii
  • 4,123
  • 3
  • 40
  • 64
0
votes
1 answer

Leader re-election without leader being down?

Is there any accepted method of leader election in a distributed environment wherein the leader may change after every fixed interval of time(or rounds) without the current leader going down/disconnecting? This may sound like a very wrong way but I…
Swapnil Pandey
  • 577
  • 3
  • 8
  • 25
0
votes
1 answer

Ocean Protocol: Decentralized Big Data Sharing and Artificial Intelligence

Ocean Protocol claims that it created a "decentralized data marketplace" using decentralization of data sharing by blockchain. They say that their platform can be used in Artificial Intelligence. However, the amount of data employed in Artificial…
Questioner
  • 662
  • 1
  • 10
  • 26
0
votes
1 answer

How to publish a dapp from Superblocks?

I build a simple dapp using https://iot-academy.superblocks.com/ , how can I publish it online on a normal server?
Damian
  • 63
  • 1
  • 1
  • 9
0
votes
1 answer

How to set up a local test environment for Steem?

I am new to building apps on the Steem blockchain. I want to know how to build a local test environment to test out my app. I dont want to spam the main Steem blockchain with my test transactions. There are documents on developers.steem.io but those…
Mushahid Khan
  • 75
  • 1
  • 7
0
votes
1 answer

Blockchain dApp: How end user use dApp without care of Ethereum Account

I want to develop a dApp (Smart Contract) on Ethereum and have a mobile application on top of it. My concern is: every time we interact with Smart Contract to inquiry or change data, we need a account as well as a certain number of ETH used as Gas.…
Hoang Le
  • 1
  • 1
0
votes
1 answer

npm install -g ethereumjs-testrpc Not working?

npm install -g ethereumjs-testrpc not working it is showing error npm ERR! Error: EACCES: permission denied, access '/usr/local/lib/node_modules/ethereumjs-testrpc' npm ERR! at Error (native) npm ERR! { [Error: EACCES: permission denied,…
Chaitanya Rajeev
  • 1
  • 1
1 2 3
…
17 18