Questions tagged [immutability]

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Demonstrating Immutability and Transparency in a Blockchain: Observing Data Retrieval Across Nodes

I have developed a decentralized application (DApp) on a blockchain platform and I'm keen on verifying the fundamental principles of immutability and transparency that blockchain technology offers. ...
kaustubh sharma's user avatar
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1 answer
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How are cases of wrong data published to the blockchain handled?

How are cases of wrong data published to the blockchain handled? Let's say I am Defi protocol or even an oracle...and shit always happens, there was a mistake somewhere and the wrong data get ...
Finlay Weber's user avatar
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1 answer
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If blockchain is immutable and the data once stored on blockchain can not be changed, then how can we change the state variable in solidity?

I am new to blockchain. I have some idea about blockchain and solidity. Smart contract get stored on blockchain as byte code. And the state variables we create also stored in blockchain. How is it ...
Mayank Patidar's user avatar
1 vote
0 answers
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How Ethereum NFT Protect Artist Work ( How NFT IMMUTABILITY works on BLOCKCHAIN)?

Hi Guys let discuss how NFT Immutable works on ethereum blockchain I'm new to nft, just created my first one with opensea:) as in image1. My question https://i.stack.imgur.com/ZgxB5.jpg Is my art ...
Diamond codes's user avatar
1 vote
1 answer
987 views

How to kill a contract in ethereum?

I'm trying to kill this contract /** *Submitted for verification at Etherscan.io on 2016-08-31 */ //sol Wallet // Multi-sig, daily-limited account proxy/wallet. // @authors: // Gav Wood <g@...
Luis's user avatar
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1 vote
3 answers
62 views

How permanent is data stored in Ethereum?

Does it all depend on the availability of nodes? What if say there's 1 node left in Ethereum, will that node contains the entire blockchain?
vocotipex's user avatar
5 votes
1 answer
196 views

What happens to immutable contracts when Ethereum 2.0 will likely change the 15s block time?

Immutable contracts that need to have a time system for handling their functions process are mostly based on block.number system. They assume there is about 15seconds between each block and thus ...
Kevin Wad's user avatar
  • 327
0 votes
2 answers
148 views

How the "data" field of transaction is saved in the Ethereum blockchain? [closed]

as I imagine there are 2 options: in pseudo language: 1) block.add(tx.data); block.calculate_hash_for_blockchain(); 2) block.add(some_hash_function(tx.data)); block.calculate_hash_for_blockchain(); ...
bdimych's user avatar
2 votes
0 answers
54 views

Demonstrate immutability in an Ethereum blockchain

I am currently using a private Ethereum setup with 3 nodes. As part of the demo of my project, I need to demonstrate that Ethereum is immutable. How do I show it using geth? The audience of my ...
Akhil Kintali's user avatar
2 votes
2 answers
837 views

How do we achieve immutability within a contract on the blockchain?

Am relatively new to the realm of Dapps and blockchain in general, and if you ask someone well-informed about the characteristics of blockchains, the word "immutable" will invariably appear in the ...
Sean's user avatar
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