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Include BIP 353 name info in invoice_requests #1180

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Include BIP 353 name info in invoice_requests #1180

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10 changes: 10 additions & 0 deletions 12-offer-encoding.md
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Original file line number Diff line number Diff line change
Expand Up @@ -437,6 +437,12 @@ while still allowing signature validation.
1. type: 90 (`invreq_paths`)
2. data:
* [`...*blinded_path`:`paths`]
1. type: 91 (`invreq_bip_353_name`)
2. data:
* [`u8`:`name_len`]
* [`name_len*byte`:`name`]
* [`u8`:`domain_len`]
* [`domain_len*byte`:`domain`]
1. type: 240 (`signature`)
2. data:
* [`bip340sig`:`sig`]
Expand Down Expand Up @@ -481,6 +487,10 @@ The writer:
(e.g. milli-satoshis for bitcoin) for `invreq_chain` (or for bitcoin, if there is no `invreq_chain`).
- if it supports bolt12 invoice request features:
- MUST set `invreq_features`.`features` to the bitmap of features.
- if it received the offer from which it constructed this `invoice_request` using BIP 353 resolution:
- MUST include `invreq_bip_353_name` with,
- `name` set to the post-₿, pre-@ part of the BIP 353 HRN,
- `domain` set to the post-@ part of the BIP 353 HRN.

The reader:
- MUST reject the invoice request if `invreq_payer_id` or `invreq_metadata` are not present.
Expand Down