The report cites media forensics expert Hany Farid saying that any finished blockchain solution for fighting deepfakes is still years away due to the complexity involved here. When we buy food from a supermarket, we generally expect it to be packaged in such a way that it can't be tampered with -- sealed plastic, stickers over the wrapper, and so on It doesn't guarantee the food will be perfect: it still might not taste good, and we can't prevent it from spoiling if you leave it out too long, but what you do know is that the package hasn't been interfered with on its way to you Faife continued: "These authenticity measures propose something similar for video: it's not an ultimate guarantee of truth and shouldn't be taken as an endorsement of the content itself, but it does allow you to confirm that a media item hasn't been tampered with on its way to you from the original point of capture."