Great article. I would even go so far that ecash is not only the best way to do this but possibly the only way that exists. There is no other privacy-preserving micro payment system that I'm aware of.
Even better, with the ecash channels that @SatsAndSports is pioneering, you'll be able to make 10,000 payments with just two ecash mint operations. It will basically be *instant* and with tiny microscopic fees, if the mint charges any (which it should). I don't think this is an exaggeration, ecash channels possibly have the best cost/benefit ratio of anything that has been innovated in Cashu so far.
Extremely simple, and incredibly powerful.
E-cash channels by @SatsAndSports:
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Article by @Dustin Dannenhauer:
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