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NUT-05: Remove reference to old paid flag and proof #167

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Sep 18, 2024
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NUT-05: Remove reference to old paid flag and proof #167

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c694012
remove reference to old `paid` flag and `proof`
callebtc Sep 18, 2024
bba65b9
longer
callebtc Sep 18, 2024
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2 changes: 1 addition & 1 deletion 05.md
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Expand Up @@ -10,7 +10,7 @@ Melting tokens is the opposite of minting tokens (see [NUT-04][04]). Like mintin

In the first request the wallet asks the mint for a quote for a `request` it wants paid by the mint and the `unit` the wallet would like to spend as inputs. The mint responds with a quote that includes a `quote` id and an `amount` the mint demands in the requested unit. For the method `bolt11`, the mint includes a `fee_reserve` field indicating the reserve fee for a Lightning payment.

In the second request, the wallet includes the `quote` id and provides `inputs` that sum up to `amount+fee_reserve` in the first response. For the method `bolt11`, the wallet can also include `outputs` in order for the mint to return overpaid Lightning fees (see [NUT-08][08]). The mint responds with a payment status `paid` and a `proof` of payment. If the request included `outputs`, the mint may respond with `change` for the overpaid fees (see [NUT-08][08]).
In the second request, the wallet includes the `quote` id and provides `inputs` that sum up to `amount+fee_reserve` in the first response. For the method `bolt11`, the wallet can also include `outputs` in order for the mint to return overpaid Lightning fees (see [NUT-08][08]). The mint responds with a payment `state`. If the `state` is `"PAID"` the response includes a `payment_preimage` as a proof of payment. If the request included `outputs`, the mint may respond with `change` for the overpaid fees (see [NUT-08][08]).

We limit this document to mint quotes of `unit="sat"` and `method="bolt11"` which requests a bolt11 Lightning payment (typically paid by the mint from its Bitcoin reserves) using ecash denominated in Satoshis.

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