Blockchain Essentials
Batch 1
Assignment Day – 1


1) What is your understanding of block chain?
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It is a growing list of records, called blocks, that are linked using cryptography.Blockchain is a system of recording information in a way that makes it difficult or impossible to change, hack, or cheat the system.A blockchain is essentially a digital ledger of transactions that is duplicated and distributed across the entire network of computer systems on the blockchain. Each block in the chain contains a number of transactions, and every time a new transaction occurs on the blockchain, a record of that transaction is added to every participant’s ledger.


2)what is the core problem block chain trying to solve?
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1. Identity Theft
2. Managing And Protecting Patient Data in Health Care Organizations
3. Digital Copyright And Piracy
4.Authenticity
5.Security

3)what are the few features that block chain will give you?
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1. Cannot be Corrupted
2. Decentralized Technology
3. Enhanced Security
4. Distributed Ledgers
5. security
6. No hacking

4)What are all the things that a block contains?
block contains:
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1.block number
2. Transaction records
3.previous block signature
4.mining key

5)How is venerability of block chain attained?
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Through the redistribution of tamper proof.
block 1=A(0)+B(data)=C(Fingerprint)
Block 2=C(sign/fingerprint)+d(data)=F(fingerprint)
b and D are the data
each block will get the transaction in every 10 sec
first block is a genesis one which doesn't contain the fingerprint or Signature of it.