Introduction to Blockchain

Transcript

1. Introduction to Blockchain HuyBD3@fsoft.com.vn
2. Agenda 1. Blockchain 1.1. What is Blockchain? 1.2. How does it work? 1.3. Applications 2. Q/A
3. Blockchain: Why do we even need something this complex? https://www.digitaltrends.com/computing/google-blockchain-work/
4. Blockchain: Why do we even need something this complex? Start Simple!
5. Blockchain: Start simple! May 21, 2018 10:00:00 am Joe ---> Huy 1000$
6. Blockchain: Start simple! May 21, 2018 10:00:00 am Joe ---> Huy 1000$ --> To establish trust between ourselves, we depend on individual third-parties.
7. Blockchain: Start simple! May 21, 2018 10:00:00 am Joe ---> Huy 1000$ May 21, 2018 13:22:12 pm David ---> Tony 500$ May 21, 2018 14:22:12 pm Huy ---> Jue 200$ May 21, 2018 17:22:12 pm Nguyen ---> Huy 200$ ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------
8. Blockchain - A blockchain is a continuously growing list of records, which are linked and secured using cryptography. - Blockchain was invented by Satoshi Nakamoto in 2008 for use in the cryptocurrency bitcoin, as its public transaction ledger. → What is a block and what is a chain?
9. Blockchain: What is a block? Block Index Previous Hash Data …. Timestamp Nonce Hash
10. Blockchain: What is a chain? …. Genesis Block 0 Welcome! 1526901742 231 09b37c... Block #1 09b37c… Hello …. 1526901742 11223 6a9920... Block #2 6a9920... Hi 123 1526901742 88722 75a315...
11. Blockchain: How does it work? 1. An Empty Folder 2. When A Transaction Happens 3. Transactions Continue Happening https://hackernoon.com/wtf-is-the-blockchain-1da89ba19348
12. Blockchain: How does it work?
13. Blockchain: Main advantages 1. Decentralization - Blockchain is considered as a secure decentralized technology which is very hard to corrupt. Unlike traditional databases blockchain is a distributed ledger that means the data will be available to each node of the system and for any update or change every node must verify that change. 2. Transparent - Another important feature of blockchain is transparency. The transactions recorded on the blockchain is visible by everyone. 3. Secure - In blockchain technology, every transaction requires a key. The data has been encrypted and saved into blocks for verification. This process makes it secure as each node must verify the data.
14. Applications
15. https://medium.com/fluree/blockchain-for-2018-and-beyond-a-growing-list-of-blockchain-use-cases-37db7c19fb99
16. Q/A HuyBD3@fsoft.com.vn duchuy.bui2108@gmail.com https://hackernoon.com/wtf-is-the-blockchain-1da 89ba19348 https://blockchain.info/ https://blockchaindemo.io/ https://anders.com/blockchain/blockchain.html https://etherscripter.com/ https://etherscan.io/ https://www.linkedin.com/pulse/blockchain-health care-use-cases-svyatoslav-hvozdynskyy/