Remove p tag, clarify that NIP 59 does not define a messaging protoco…

…l on its own

59.md

@@ -9,6 +9,8 @@ Gift Wrap
 This NIP defines a protocol for encapsulating any nostr event. This makes it possible to obscure most metadata
 for a given event, perform collaborative signing, and more.
 
+This NIP *does not* define any messaging protocol. Applications of this NIP should be defined separately.
+
 This NIP relies on [NIP-44](./44.md)'s versioned encryption algorithms.
 
 # Overview
@@ -55,11 +57,8 @@ Tags MUST must always be empty in a `kind:13`. The inner event MUST always be un
 
 ## 3. Gift Wrap Event Kind
 
-A `gift wrap` event is a `kind:1059` event that wraps any other event. `tags` MUST include a single `p` tag
-containing the recipient's public key.
-
-The goal is to hide the sender's information, the metadata, and the content of the original event from the public.
-The only public information is the receiver's public key.
+A `gift wrap` event is a `kind:1059` event that wraps any other event. `tags` SHOULD include any information
+needed to route the event to its intended recipient, including the recipient's `p` tag or NIP-13 proof of work.
 
 ```js
 {
@@ -68,7 +67,7 @@ The only public information is the receiver's public key.
   "content": "<encrypted kind 13>",
   "kind": 1059,
   "created_at": 1686840217,
-  "tags": [["p", "<Receiver>"]],
+  "tags": [["p", "<recipient pubkey>"]],
   "sig": "<random, one-time-use pubkey signature>"
 }
 ```
@@ -106,6 +105,9 @@ Let's send a wrapped `kind 1` message between two parties asking "Are you going
 - Recipient private key: `e108399bd8424357a710b606ae0c13166d853d327e47a6e5e038197346bdbf45`
 - Ephemeral wrapper key: `4f02eac59266002db5801adc5270700ca69d5b8f761d8732fab2fbf233c90cbd`
 
+Note that this messaging protocol should not be used in practice, this is just an example. Refer to other
+NIPs for concrete messaging protocols that depend on gift wraps.
+
 ## 1. Create an event
 
 Create a `kind 1` event with the message, the receivers, and any other tags you want, signed by the author.
@@ -243,7 +245,7 @@ const rumor = createRumor(
 const seal = createSeal(rumor, senderPrivateKey, recipientPublicKey)
 const wrap = createWrap(seal, recipientPublicKey)
 
-// Receiver unwraps with his/her private key.
+// Recipient unwraps with his/her private key.
 
 const unwrappedSeal = nip44Decrypt(wrap, recipientPrivateKey)
 const unsealedRumor = nip44Decrypt(unwrappedSeal, recipientPrivateKey)