Blockchain Basics

A blockchain is like a database that is provably immutable / unchangeable and almost impossible to hack. The Blockchain ADDS course starts off with the basics of blockchain technology.

Imagine a world without computer databases. There would be no Amazon, no ATMs, no Internet banking, no Gmail, no Whatsapp, no LinkedIn, no YouTube!

Almost everything that makes the digital world so powerful and useful depends upon computer databases. Now imagine a database that is provably immutable / unchangeable and almost impossible to hack. That’s a blockchain.

Blockchain technology started off with 1 usecase - a cryptocurrency called Bitcoin. But today Blockchain has become an integral part of our lives with use cases like:

• Crypto Assets

• Decentralized Autonomous Organizations (DAOs)

• Decentralized Finance (DeFi)

• Metaverse & Gaming

• Non-Fungible Tokens (NFTs)

• Web3

• Wrapped Assets

...and even storage of COVID vaccine passports by the Government!

The Blockchain ADDS course starts off with the basics of blockchain technology.

Watch the video above to understand:

• A conceptual overview of blockchains

• Hash functions

• Hexadecimal

• Merkle trees

• Proof of work

• Bitcoin concepts

• Blockchain Explorers

• Mining

• Crypto Staking

• Paper wallets

• Blockchain API

• Symmetric encryption

• Digital signatures

The presentation used in this video is here:

https://www.rohasnagpal.com/docs/adds/Blockchain_Basics.pdf