[Lightning-dev] Strawman BOLT11 static "offer" format using probes.
ZmnSCPxj
ZmnSCPxj at protonmail.com
Thu Nov 15 16:22:29 UTC 2018
Good morning Rusty,
> I want to propose a method of having reusable BOLT11 "offers" which
> provide almost-spontaneous payments as well as not requiring generating
> a BOLT11 invoice for each potential sale.
Suggest making a new BOLT document.
This would be basically a new BOLT for how to generate a BOLT11 invoice.
I suggest also to use instead the term "BOLT15 advertisement".
>
> The return lightning message
Will this be a new message that fails the HTLC, or will we reuse `update_fail_htlc` to return the data as an error?
>would contain a new bolt11 invoice (perhaps
> we optimize some fields by copying from the bolt11 offer if they don't
> appear?)
Would this require some kind of canonical ordering for tagged fields in the generated bolt11 invoice?
For t-l-v there is proposal for types to have an absolute order (from lowest-numbered to highest-numbered), which would be useful for such cases where we want to only give unique parts of something.
Bolt11 invoices have a signature so the order of the tagged fields matters.
Regards,
ZmnSCPxj
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