An organization is preparing to export proprietary software to a customer. Which of the following would be the best way to prevent the loss of intellectual property?

Obfuscation is the best way to prevent intellectual property loss in this scenario because it intentionally creates source code or machine code that is difficult for humans to understand. This makes reverse engineering the proprietary software much harder, thus protecting the organization's intellectual property. Code signing verifies the authenticity and integrity of the software but doesn't prevent reverse engineering. Tokenization replaces sensitive data with non-sensitive substitutes, primarily for data security, not intellectual property protection of software itself. Blockchain provides a distributed, immutable ledger, useful for data integrity and transparency, but not for obscuring software code.