How do you watermark AI-generated content and establish provenance (e.g. against deepfakes)?
As generation gets indistinguishable from real, knowing what is AI-made matters for trust, misinformation, and regulation. The signal is the split between in-content watermarks and attached provenance metadata, and that detection is an arms race. Here is the answer.
Updated Aug 2026 · Grounded in real Applied AI Engineer interview loops and written to a senior-engineer editorial bar.
As generation gets indistinguishable from real, knowing what is AI-made matters for trust, misinformation, and regulation. The signal is the split between in-content watermarks and attached provenance metadata, and that detection is an arms race. 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.