Would those databases also have the option to trace the data back to the origins of that data? It wouldn't solve the privacy issue but I think if companies are

Would those databases also have the option to trace the data back to the origins of that data? It wouldn't solve the privacy issue but I think if companies are compelled to hold a record from whom they purchased/obtained data, it would help. It would help to determine if the originator had informed consent to share it and also if that included every company in the chain. Currently if a company 'loses' their data then people who never even interacted with this company gets their data exposed without them knowing. If you're dealing with personal data, why not keep a record how, where and when you obtained it from?