Go-Blockchain

1. Overview

1. This is a simple implementation of a blockchain in Go. Not all functions are implemented yet! This program demonstrates only the principle of blockchains.

2. Components

2.1 Block

• Fields:

• Index: The position of the block in the blockchain.

• Timestamp: The time the block was created.

• Data: The information stored in the block (e.g., transaction data).

• PreviousHash: The hash of the previous block in the chain.

• Hash: The hash of the current block.

• Functions:

• CalculateHash(block Block) string: Calculates the hash of a block.

• GenerateBlock(previousBlock Block, data string) Block: Creates a new block in the blockchain.

2.2 Blockchain

• Fields:

• Chain: A slice of blocks representing the entire blockchain.

• Functions:

• AddBlock(data string): Adds a new block to the blockchain.

• IsValid() bool: Checks if the blockchain is valid by verifying hashes and previous block references.

3. Running the program

• go run blockchain.go

4. Output

• The program prints information for each block in the blockchain, including index, timestamp, data, previous hash, and hash.
• In the last line of the output indicates whether the blockchain is valid or not.

5. Important Notes

• This is a simplified blockchain implementation that can be expanded upon.
• In a real-world scenario, it would require additional features such as network communication, consensus algorithms, and security measures.