Blockchain doesn't solve this problem, it moves it to a different environment. Instead of paying your son to mow the lawn you've invented an army of tiny robots who trundle out and clip one individual blade of grass before reporting back home.

What if the ingest system wrongly feeds your blockchain with faulty records? They are saved permanently, sure, but are they correct ?

It s like saying that because you kidnapped a bitcoin millionaire and took his key, the blockchain allowing you to claim his balance means that you are indeed the rightful owner of the funds. No, you're not.