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Re:My professional opinion as a blockchain researcher: I don... by bluetwo on Monday February 12, 2018 @01:08PM (#16360501)
That is 1) to prevent fraud (see "check kiting") and 2) so the holding institution can collect the interest for the day.

This is not a technology problem. Blockchain won't change either of these.

Re:My professional opinion as a blockchain researcher: I don... by nawitus on Monday February 12, 2018 @02:28PM (#16361260)
A blockchain certainly change that. If a bank does something for non-technological reasons, it's possible that a blockchain does something else.