The supply chain management use case from the article might not really work in the sense that the oracles/involved parties can tamper with the their input senso

The supply chain management use case from the article might not really work in the sense that the oracles/involved parties can tamper with the their input sensors, but it still offers other parties plausible deniability. Let's say you get meat delivered by cooling trucks and this is mirrored in a public block chain. You publicly claim that all your meat is sufficiently cooled and every single delivery is tracked. If this data is in a public block chain, there is no doubt that you didn't input this data, it was in fact the delivery company, and if they cheated with their cooling sensors, the liability is on them. With a privately hosted database under control of the corporation (you), there would be suspicion that you manipulated it. So it doesn't actually solve the problem, but you can legitimately claim that you did as much as you could (as far as using technology goes at least) to ensure the quality of the delivered meat.