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SEC approves Nasdaq's move to allow tokenized securities trading
(www.coindesk.com)
This is a most excellent place for technology news and articles.
So what I got is that the pre existing stocks will be split behind the scenes into stocks that are settled by a clearing house as usual, and settled by the same clearing house with blockchain.
I'm just confused, if you have one authority, a single one, responsible for settlement, then a database is enough. And a blockchain with one node that writes and many that read, is ridiculous.