Blockchain technology is an immutable ledger that facilitates transaction recording and asset tracking within a business network. Originally introduced in 2008 with Bitcoin, blockchain has applications in various domains including banking, healthcare, and voting, providing benefits like enhanced security and greater efficiency. Despite its current predominant use in cryptocurrencies, blockchain's potential impact across multiple sectors is becoming increasingly recognized.

1. BY:
• VENUGOPAL. K
• RAJIVMENAN. A
BLOCKCHAIN TECHNOLOGY

2. Intro to
Blockchain
What is
Blockchain and
how it works
Application of
Blockchain
Benefits of
Blockchain
Conclusion
CONTENT

3.  BLOCKCHAIN REFERS TO THE
TECHNOLOGY THAT BRINGS UP
SOLUTION TO THE PROBLEM OF
AGE-OLD HUMAN TRUST PROBLEM.
 Blockchain Technology first came to
light when a person or Group of
individuals name ‘Satoshi
Nakamoto’ published a white paper
on “BitCoin: A peer-to-peer
electronic cash system” in 2008.
INTRODUCTION OF
BLOCKCHAIN

4. What Is a White Paper?
A white paper is an informational document issued by a
company or not-for-profit organization to promote or
highlight the features of a solution, product, or service
that it offers or plans to offer.
The whitepaper, basically, is a proposal that contains who,
what, when, and why an investor should choose that
project over others.

5. What is Blockchain ?
 Blockchain is a shared, immutable ledger that
facilitates the process of recording transactions
and tracking assets in a business network.
 An asset can be tangible (a house, car, cash,
land) or intangible (intellectual property,
patents, copyrights, branding).
 Virtually anything of value can be tracked and
traded on a blockchain network, reducing risk
and cutting costs for all involved.
(A ledger is a book or collection of accounts in which account transactions are recorded.)

6. Record the
transaction
Gain consensus Link the blocks Share the ledger
STEPS INVOLVED
HOW IT WORKS ?

7. Step 1 – Record the transaction
A blockchain transaction shows the
movement of physical or digital assets
from one party to another in the
blockchain network. It is recorded as a
data block and can include details like
these:
• Who was involved in the transaction?
• What happened during the
transaction?
• When did the transaction occur?

8. Step 2 – Gain
consensus
• Most participants on the distributed
blockchain network must agree that
the recorded transaction is valid.
• Depending on the type of network,
rules of agreement can vary but are
typically established at the start of the
network.

9. STEP 3 –
LINK THE
BLOCKS
 Once the participants have reached a
consensus, transactions on the blockchain are
written into blocks equivalent to the pages of a
ledger book.
 Along with the transactions, a cryptographic
hash is also appended to the new block. The
hash acts as a chain that links the blocks
together.
 This is like stacking wooden blocks to make a
tower.

10. Step 4 – Share the ledger
•The system distributes the
latest copy of the central
ledger to all participants

13. It is used in
Cryptocurrency
(Bitcoin, ethereum,
altcoin, litecoin).
Used in the
smart contract
(It is handle
autonomously
the fulfillment
of a contract
without needing
a third party).
It is also used in
digital voting.
Government
registration of
land.
Transportation
and supply chain
management.
APPLICATION OF
BLOCKCHAIN:

14. 1. Bitcoin
The primary application of Blockchain is in
Cryptocurrencies like Bitcoin. Bitcoin is a decentralized
digital currency introduced by Santoshi Nakamoto.
2. Banking
Nowadays, Blockchain is also replacing the existing, or
we can say overtaking the current Banking system.
Because of the Blockchain, the hacking of
accounts will become impossible.

15. 3. Healthcare
Healthcare is also a domain where Blockchain
technology has been used for storing the
details of the patients. This technology ensures
that anyone accessing this Blockchain can
access patients’ data.
4.Voting
Blockchain can be used in the next election or
Voting because of its unchanging revolutionary
nature. Voting will become more secure and
fail-proof with the help of Blockchain.

16. Greater
Transparency
Data
Ownership
Enhanced
Security
Increased
Efficiency and
Speed
Fraud Control
Quality
Assurance
Peer-To-Peer
Global
Transactions
BENEFITS OF
BLOCKCHAI
N:-

17. CONCLUSION:-
• Blockchain is an emerging technology and its use at present is
limited only to the crypto currency. This technology is also
said to be useful in different sectors in the coming future. It is
being tested for the same in different sectors in several
countries of the world. It is brought into use in the banking
and commerce sectors in different countries.
• This technology is becoming popular at a very fast pace and
there are many fields where it can bring revolutionary
changes.

18. THANK YOU…..