How does C2PA establish content provenance, and what are its limits against a determined forger?
C2PA cryptographically signs where media originated, but a signature you can peel off is not the same as a watermark you cannot. The signal is knowing what provenance proves, what it does not, and why you pair it with watermarking. Here is the answer.
Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.
C2PA cryptographically signs where media originated, but a signature you can peel off is not the same as a watermark you cannot. The signal is knowing what provenance proves, what it does not, and why you pair it with watermarking. Here is the answer.
Lead with where the obvious approach breaks, because that is the judgment they are screening for — most candidates jump straight to the happy path and lose the room.
Then walk the failure back through the pipeline in order, naming the one metric the customer's exec sponsor actually cares about before you propose the fix.
