The whole point of the blockchain I thought was to maintain a decentralized public ledger that I don't see how an individual institution can benefit from. In other words, I thought decentralization of the ledger ownership and manipulation was solved by using a blockchain, so a "centralized" blockchain seems like an oxymoron to me.
lets take a bank for instance,
bank branches in every town.
so instead of having a central datacentre and employing 10 IT Technicians to maintain the database, and then atleast 3 security guards working in shifts to over see the datacentre. along with all the other hidden costs of running a datacentre.
each bank can have a node, and the bank manager just swaps over a data cable to a spare device if one packs up..
that would solve
need of datacentre
need of security guards
need of auditors
need of internal affair investigators
imagine it that there would be less internal fraud of staff editing accounts locally because the whole network wont accept the changes.
secondly if there was a city wide black/brownout. there would be no data-center to go offline. and enough nodes around the country to keep the data flowing and the settlement of accounts going.
now lets take the passport agency for instance.
instead of again one data center. each airport is a node. each embassy is a node. the births deaths and marriage offices are nodes, basically anyone needing access to the data is a node.
this would stop internal staff making fake passports as each passport needs a multisig signed off on by all the departments. after they have done their checks. so say goodbye to worries of blackouts, say goodbye to internal affair offices, say goodbye to datacenters, say goodbye to little jimmy making a fake passport in the production warehouse