BlockchainExample

A Java project to explain concept of Blockchain and Cryptocurrency.

Blockchain

Blockchain is a continuously growing list of records called "block". Each block contains-

• Transaction Data
• Hash
• Previous block's hash
• Timestamp
• Nonce

Project contains following models/entities

• Block
• Wallet
• Transaction
• TransactionInput
• TransactionOutput

Project contains following concepts

• Creation of block
• Mining of a block
• Check integrity of Blockchain
• Generating hash using SHA256
• Generating private and public keys for wallet
• Generating signature in transaction
• Concept of inputs and outputs
• Calculation of amount in wallet
• Process a transaction
• Send funds

Notes on Blockchain

This is the rough Notes of Blockchain created by me. I will write a detailed article about it soon. Till then you can read it to clear some quick concepts- Blockchain Notes

Note:- For now, Block contains single string as transaction data. It will be replaced by list of transactions.