This is a simple implementation of a blockchain as a database using Python and JavaScript. It includes classes for the blockchain, blocks, and transactions. The implementation also includes proof-of-work mining and transaction validation.
- Blockchain Class: Manages the chain of blocks, including adding new blocks, mining blocks, and validating the chain.
- Block Class: Represents individual blocks in the blockchain, containing transactions and a reference to the previous block.
- Transaction Class: Represents transactions within the blockchain, including sender, recipient, amount, timestamp, data, and hash.
- Proof of Work (PoW): Blocks are mined using a proof-of-work algorithm, requiring computational effort to validate transactions and create new blocks.
- Transaction Validation: Transactions are validated to ensure integrity and authenticity.
- Persistence: The blockchain data is saved to a file for persistence across sessions.
- Clone the repository:
git clone https://github.com/Koshelenkoa/sf-hacks24.git
- Navigate to the project directory:
cd blockchain
- Run the main script to start the blockchain server:
python demo.py
-
The server will start listening for connections on the specified port.
-
Start local webserver that interfaces with local copy of blockchain
''' cd ../client/client npm start '''
/mine_block: Mine a new block in the blockchain./add_transaction: Add a new transaction to the pending transactions pool./get_chain: Get the full chain of blocks./is_valid: Check if the blockchain is valid./connect_node: Connect a new node to the network./replace_chain: Replace the current chain with the longest valid chain in the network.