From 81480824adca735c8e5eb31646dacd48673fc814 Mon Sep 17 00:00:00 2001
From: Pablo Fernandez <p@f7z.io>
Date: Thu, 23 Nov 2023 15:46:37 +0000
Subject: [PATCH] move tier description to NIP-33 event and add 7002 as
 unsubscribe event

---
 88.md | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/88.md b/88.md
index 28bed06d..25c41a5e 100644
--- a/88.md
+++ b/88.md
@@ -13,11 +13,13 @@ A pubkey can create "tiers". These tiers might provide certain benefits to the s
 
 ```json
 {
-    "kind": 7002,
+    "kind": 37001,
     "content": "<description of the tier>",
     "tags": [
         [ "title", "..." ],
-        [ "amount", "<amount-in-base-unit>", "currency", "<cadence>" ]
+        [ "image", "..." ],
+        [ "amount", "<amount-in-base-unit>", "currency", "<monthly>" ],
+        [ "amount", "<amount-in-base-unit>", "currency", "<quarterly>" ]
     ]
 }
 ```
@@ -26,6 +28,7 @@ This event is generated by a pubkey who wants to allow users to support with dif
 
 `.content` SHOULD be a description of what users who subscribe can expect.
 Tag `title` is an optional title for the tier.
+Tag `image` is an optional image for the tier.
 Tag `amount` MUST specify the payment required for this tier and its cadence.
     * The first argument should be the stringified amount and the second argument the currency
     * The third argument SHOULD be one of `daily`, `monthly`, `yearly`
@@ -43,7 +46,8 @@ One or more `amount` tags MUST exist.
     "content": "<optional-message>",
     "tags": [
         [ "p", "<recipient-pubkey>" ],
-        [ "e", "<supporting-tier-id>" ],
+        [ "a", "<supporting-tier-event-id>" ],
+        [ "event", "<stringied-event-subscribed-to>" ],
         [ "amount", "<amount-in-base-unit>", "currency", "<cadence>" ]
     ]
 }
@@ -53,13 +57,14 @@ When a user wants to subscribe to support a user they create a `kind:7001` event
 
 * `.content` is an optional message the supporter can write.
 * The `p` tag MUST tag the pubkey being supported.
-* The `e` tag is optional, and should point to a `kind:7001` support tier event. There MUST be exactly 0 or 1 `e` tags.
-* The `amount` tag specifies what the supporters is committing to pay to the supported pubkey and the candence.
+* The `a` tag is optional; it should point to a `kind:37001` support tier event. There MUST be exactly 0 or 1 `a` tag.
+* The `event` tag is optional; subscribers can opt to keep the version of the event they subscribed to. There MUST be exactly 0 or 1 `event` tag.
+* The `amount` tag specifies what the supporters is committing to pay to the supported pubkey and the candence. MUST be equal to one of the amounts specified in the `kind:37001` event. There MUST be exactly 1 `amount` tag.
 
 The `kind:7001` event can be created without an `e` tag so that users can create recurring support events without the pubkey receiving the support having explicitly created a support tier.
 
 ## Paying
-The supporting user should create a zap p-tagging the receiver and e-tagging the `kind:7001`. There MUST be a single `p` and a single `e` tag in the zap request.
+The supporting user should create a zap `p`-tagging the receiver and e-tagging the `kind:7001`. There MUST be a single `p` and a single `e` tag in the zap request.
 
 ```json
 {
@@ -84,4 +89,15 @@ The following conditions must be met to verify a payment:
 * Validations specified in [NIP-57](https://github.com/nostr-protocol/nips/blob/master/57.md).
 
 ## Stopping a subscription
-A user who wants to stop a subscription by publishing a `kind:5` deletion request of the `kind:7001` event.
+A user who wants to signal they are no longer subscribed can publish a `kind:7002` event tagging the `kind:7001` they are stopping and `p`-tagging the pubkey they are no longer subscribed to.
+
+```json
+{
+    "kind": 7002,
+    "content": "<optional-message>",
+    "tags": [
+        [ "p", "<recipient-pubkey>" ],
+        [ "e", "<kind-7001-event-id>" ],
+    ]
+}
+```
\ No newline at end of file