Only if you’re talking about a Bitcoin-style public ledger blockchain. The auditable, immutable history can also make sense in a private blockchain that costs next to nothing to add to, can be backed up for a song, and can only be added to if you hold the private key.
But again, the computer that would go into that kind of a system is astronomical per item. It just doesn’t make sense to use.
Only if you’re talking about a Bitcoin-style public ledger blockchain. The auditable, immutable history can also make sense in a private blockchain that costs next to nothing to add to, can be backed up for a song, and can only be added to if you hold the private key.
I haven’t heard of this implementation. Yeah, this 100% is viable.
Yet. That is the big reasoning behind proofs of chain like work, etc.