Not really solved, since you can still have people misspeaking or misunderstanding questions, and there's no way to prove that without mind reading.
And isn't that what happened in this case? Nobody's saying she made up the quote. IIRC everyone (reporter, Dorian, police officers) agree it was said. It's just that Dorian claims he misunderstood her question, which is why he gave an answer that appeared to admit to creating bitcoin. A recording wouldn't be conclusive.
Yes but there is so much more information in audio like tone of voice, timing and cadence. (Most) humans are good at deciphering this information and plying out the true meaning.
And isn't that what happened in this case? Nobody's saying she made up the quote. IIRC everyone (reporter, Dorian, police officers) agree it was said. It's just that Dorian claims he misunderstood her question, which is why he gave an answer that appeared to admit to creating bitcoin. A recording wouldn't be conclusive.