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tldr: banks are very excited that bitpay is working on a solution to apply "blockchain technology" to the way they do business.
In other words, this isn't related to Bitcoin but rather to blockchain technology. This shouldn't even be in this section.
I wonder if they would use the actual amount of btc to transfer customer funds or use a colored coin system?
They are talking about applying blockchain technology to the mainstream currencies, not using Bitcoin.
And how are they going to use blockchain technology without a cryptocurrency attached to them, exactly? will it be PoS with fiat and closed source and centralized? that isn't a blockchain, that's a regular electronic ledger.