On Wed, Sep 27, 2017 at 12:06:54PM -0400, Peter Todd via bitcoin-dev wrote:
> Being just an expiration time, seconds-level resolution is unnecessary, and
> may give the wrong impression. I'd suggest either:
> 
> 1) Hour resolution - 2^24 hours = 1914 years
> 2) Month resolution - 2^16 months = 5458 years

Just remembered: it's notable how Coinbase has a 10 minute timeout on their
payment window, which is in effect a 10 minute expiry time for the address.
Presumably they'd make use of this feature if it existed.

-- 
https://petertodd.org 'peter'[:-1]@petertodd.org