There are multiple blocks in a Blockchain. There was a transaction between Paul and John and it was stored in a block on the same blockchain. Paul wants to make some changes to a transaction and store it back in the same block? Will Paul be allowed to do that?
Answers
Answer:
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Answer:
When Paul wants to make some changes to a transaction and store it back in the same block he cannot help John because it becomes Invalid.
Explanation:
A block chain is defined as the system that can record the transaction made using another crypto currency which can be maintained using the several computers and linked with the peer-to-peer networks.
Examples of the block chain:
Bitcoin and Ethereum.
- Bitcoin was founded is a digital currency which helps in transferring the peer-to-peer networks.
- It is verified by the nodes of the network using cryptography and ledger is distributed known as block chain.
- Ethereum was released in the year 2015 by the programmer known as Vitalik Buterin.
- It is an open source block chain that has functions related to Ether of the crypto currency.
From the scenario, when Paul wants to make some changes to a transaction and store it back in the same block.
Here, Paul cannot make changes in the transaction because it is not possible because the hashes will make changes and the work and block will become invalid for John.
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