proof_of_work.py

DIRECTORY.md

@@ -55,6 +55,7 @@
 
 ## Blockchain
   * [Diophantine Equation](blockchain/diophantine_equation.py)
+  * [Proof Of Work](blockchain/proof_of_work.py)
 
 ## Boolean Algebra
   * [And Gate](boolean_algebra/and_gate.py)

blockchain/proof_of_work.py

@@ -0,0 +1,43 @@
+"""
+Proof of Work Module
+"""
+
+from datetime import datetime, timezone
+import hashlib
+
+class Block:
+    def __init__(self, index: int, previous_hash: str, data: str, timestamp: str):
+        self.index = index
+        self.previous_hash = previous_hash
+        self.data = data
+        self.timestamp = timestamp
+
+    def calculate_hash(self) -> str:
+        value = f"{self.index}{self.previous_hash}{self.data}{self.timestamp}"
+        return hashlib.sha256(value.encode("utf-8")).hexdigest()
+
+    def mine_block(self, difficulty: int) -> None:
+        """
+        Mines a block by finding a nonce that produces a hash
+        """
+        pass  # Implement mining logic here
+
+    def get_block(self) -> str:
+        """
+        Returns a formatted string of the block
+        """
+        return f"Block {self.index}:\nHash: {self.calculate_hash()}\nData: {self.data}\n"
+
+def create_genesis_block() -> Block:
+    """
+    Creates the first block in the blockchain
+    """
+    return Block(0, "0", "Genesis Block", datetime.now(timezone.utc).isoformat())
+
+def get_latest_block() -> Block:
+    """
+    Returns the latest block in the blockchain
+    """
+    pass  # Implement logic to return the latest block
+
+# Further implementation here...