diff --git a/blockchain_integration/pi_network/pi_network_university/blockchain_integration/models.py b/blockchain_integration/pi_network/pi_network_university/blockchain_integration/models.py
new file mode 100644
index 000000000..ba5892c8d
--- /dev/null
+++ b/blockchain_integration/pi_network/pi_network_university/blockchain_integration/models.py
@@ -0,0 +1,42 @@
+# blockchain_integration/models.py
+from. import db, bcrypt
+
+class User(db.Model, UserMixin):
+    id = db.Column(db.Integer, primary_key=True)
+    username = db.Column(db.String(50), unique=True, nullable=False)
+    email = db.Column(db.String(120), unique=True, nullable=False)
+    password = db.Column(db.String(100), nullable=False)
+    created_at = db.Column(db.DateTime, default=db.func.current_timestamp())
+    updated_at = db.Column(db.DateTime, default=db.func.current_timestamp(), onupdate=db.func.current_timestamp())
+
+    def set_password(self, password):
+        self.password = bcrypt.generate_password_hash(password).decode("utf-8")
+
+    def check_password(self, password):
+        return bcrypt.check_password_hash(self.password, password)
+
+class Wallet(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    user_id = db.Column(db.Integer, db.ForeignKey("user.id"))
+    user = db.relationship("User", backref="wallets")
+    address = db.Column(db.String(42), nullable=False)
+    private_key = db.Column(db.String(66), nullable=False)
+    created_at = db.Column(db.DateTime, default=db.func.current_timestamp())
+    updated_at = db.Column(db.DateTime, default=db.func.current_timestamp(), onupdate=db.func.current_timestamp())
+
+class Transaction(db.Model):
+    id = db.Column(db.Integer, primary_key=True)
+    wallet_id = db.Column(db.Integer, db.ForeignKey("wallet.id"))
+    wallet = db.relationship("Wallet", backref="transactions")
+    tx_hash = db.Column(db.String(66), nullable=False)
+    from_address = db.Column(db.String(42), nullable=False)
+    to_address = db.Column(db.String(42), nullable=False)
+    value = db.Column(db.Float, nullable=False)
+    gas = db.Column(db.Float, nullable=False)
+    gas_price = db.Column(db.Float, nullable=False)
+    created_at = db.Column(db.DateTime, default=db.func.current_timestamp())
+    updated_at = db.Column(db.DateTime, default=db.func.current_timestamp(), onupdate=db.func.current_timestamp())
+
+@login_manager.user_loader
+def load_user(user_id):
+    return User.query.get(int(user_id))