def METHOD_NAME(self):
    submission = ProgramSubmission.objects.get(pk=1)
    _proof_data_orig, proof = submission_receipt_proof(submission)
    proof_data = verify_submission_receipt_proof(
        proof, submission.source_file.read()
    )
    self.assertEqual(proof_data['id'], submission.id)
    self.assertEqual(proof_data['date'], submission.date)