> Second, if it is only about a set of shared ledger with multiple trusted parties, what is wrong with an API layer integration? What exactly is the value creation for a full fledged system?
> But, if we have a permission-ed server which can add stuff to an enterprise blockchain doesn't it make the whole thing a lot less secure?
You're asking the right questions and this is pretty much a summary why the enterprise use is unlikely to use blockchain the same way as the public, if at all. Enterprise/banking may be interested in a distributed ledger as a datastructure, but other tech which provides a similar results already exists.
Unfortunately if you look at most of the "big (company/bank) starts (experimenting with/using) (Bitcoin/blockchain)" news, they very rarely say why and how.
> But, if we have a permission-ed server which can add stuff to an enterprise blockchain doesn't it make the whole thing a lot less secure?
You're asking the right questions and this is pretty much a summary why the enterprise use is unlikely to use blockchain the same way as the public, if at all. Enterprise/banking may be interested in a distributed ledger as a datastructure, but other tech which provides a similar results already exists.
Unfortunately if you look at most of the "big (company/bank) starts (experimenting with/using) (Bitcoin/blockchain)" news, they very rarely say why and how.