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Web3 Fundamentals and NEAR

What is Web3?
A Quick History Lesson: Eras of the Web
Why We Need Web3
Centralized vs decentralized

What is Blockchain?
Hash - Block - Tokens
Public / Private Keys & Signing
Proof of Work vs Proof of Stake
Bitcoin
Ethereum

DApps
Smart Contract
FT-NFT
DeFi
DAO

What is NEAR Protocol?

NEAR Testnet Account Creation

NEAR Use Case

Practice Part - I
Practice Part - II

What is Blockchain ?

These contents have been prepared using online resources. Patika.dev’s own contents are currently under preparation.

Blockchain is a specialized database. For doing this, it uses a decentralized network to create a ledger for the transactions. Users can interact with the ledger through Cryptography. From all over the world people and computers connect with each other and add new pages(blocks) to the ledger.

"Blockchains are:

  1. Decentralized: Transactions are stored on a network of computers (nodes).
  2. Immutable: Transactions cannot be changed once committed to the block.
  3. Open: Transactions can be viewed by anyone.

images

Each block has:

  1. A list of transactions
  2. A hash (a long string of random characters) for the block
  3. The previous block’s hash (this is how the blocks are linked)"

If you want to know more about blockchain you can check out these resources here.

And you can chech out these

For further information: What is Blockchain?

Quiz

Answer the questions to check your understanding.

This lesson includes a short quiz.

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