Create blockchain_certificate_verification.py

blockchain_integration/pi_network/pi_network_university/blockchain_certificate_verification/blockchain_certificate_verification.py

@@ -0,0 +1,32 @@
+import hashlib
+import json
+from web3 import Web3
+
+# Set up blockchain connection
+w3 = Web3(Web3.HTTPProvider('https://mainnet.infura.io/v3/YOUR_PROJECT_ID'))
+
+# Define certificate verification function
+def verify_certificate(certificate_data):
+    # Hash certificate data
+    certificate_hash = hashlib.sha256(json.dumps(certificate_data).encode()).hexdigest()
+
+    # Check if certificate exists on blockchain
+    if w3.eth.get_transaction_count(certificate_hash) > 0:
+        return True
+    else:
+        return False
+
+# Define smart contract functions
+def deploy_certificate_smart_contract():
+    # Compile and deploy smart contract
+    contract = w3.eth.compile_source('smart_contracts/CertificateVerification.sol')
+    tx_hash = w3.eth.send_transaction({'from': '0x...', 'gas': 200000, 'gasPrice': w3.eth.gas_price, 'data': contract['bytecode']})
+    tx_receipt = w3.eth.wait_for_transaction_receipt(tx_hash)
+    contract_address = tx_receipt['contractAddress']
+    return contract_address
+
+def issue_certificate(student_id, course_id):
+    # Issue certificate using smart contract
+    contract_address = deploy_certificate_smart_contract()
+    contract = w3.eth.contract(address=contract_address, abi=contract['abi'])
+    tx_hash = contract.functions.issueCertificate(student_id, course_id).transact({'from': '0x...', 'gas': 200000, 'gasPrice':