change attest tag to generic p tag for better alignment with standard

XXX.md

@@ -46,7 +46,7 @@ For clarity in this NIP, we'll use the following identities to describe the acto
 
 ### On-Behalf of Attestations List
 
-This NIP introduces a replaceable event with `kind 10100`, which is used to keep a [NIP-51](https://github.com/nostr-protocol/nips/blob/master/51.md) list of `active`, `inactive` or `revoked` public keys, for publishing events on-behalf of a master account. The only valid tag in this list is `attest` tag as defined below.
+This NIP introduces a replaceable event with `kind 10100`, which is used to keep a [NIP-51](https://github.com/nostr-protocol/nips/blob/master/51.md) list of `active`, `inactive` or `revoked` public keys, for publishing events on-behalf of a master account. The only valid tag in this list is the `p` tag as defined below.
 
 `.content` fields is unused and can be ignored if present.
 
@@ -68,38 +68,40 @@ If present and valid, the `b` tag will represent that clients and relays should
 
 If an invalid `b` tag is present, clients and relays should disregard the event, as if it had an invalid signature.
 
-### Tag `attest` (attestation) for `kind 10100` list
+### Tag `p` (with attestation string) for `kind 10100` list
 
-This NIP also introduces a new tag: `attest` which can be present multiple times in master account's `kind 10100` On-Behalf Of attestations list, formatted as follows:
+This NIP also introduces a new attestation string for `p` tag. The `p` tag can be present multiple times in master account's `kind 10100` On-Behalf Of attestations list, formatted as follows:
 
 ```json
 [
-  "attest", <timestamp>, <pubkey>, <attestation string>
+  "p", <pubkey>, <main relay URL>, <attestation string>
 ]
 ```
 
+Field `main relay URL` can be omitted if not required or needed for accessing the sub account events, and in this case an empty string should be used in the second field of the `p` tag.
+
 #### Active Attestation String
 
 The **Active Attestation** should be a string in the following format:
 
 ```
-"active:<kinds comma separated list, optional>"
+"active:<timestamp>:<kinds comma separated list, optional>"
 ```
 
-`:` only required if an optional kinds list is present. Without a kinds list, the attestation is valid for all event kinds besides `kind 10100`.
+Last `:` is only required if an optional kinds list is present. Without a kinds list, the attestation is valid for all event kinds besides `kind 10100`.
 
 #### Inactive and Revoked Attestation String
 
-The **Inactive** or **Revoked Attestations** should be a string in the following format:
+The **Inactive** or **Revoked Attestations** should be a string in the following formats:
 
 ```
-"inactive"
+"inactive:<timestamp>"
 ```
 
 or 
 
 ```
-"revoked"
+"revoked:<timestamp>"
 ```
 
 To purposely limit the creative use cases, so that it doesn't become very demanding to compute the final state of an account, `inactive` and `revoked` attestations invalidate all previous `active` attestations, and subsequent `active` attestations are considered invalid as well.
@@ -130,9 +132,10 @@ As the attestations are all timestamped, it is convention that a subsequent atte
     "pubkey": "8e0d3d3eb2881ec137a11debe736a9086715a8c8beeeda615780064d68bc25dd",
     "tags": [
         [
-            "attest", 1674834236,
+            "p",
             "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-            "active:1,7"
+            "",
+            "active:1674834236:1,7"
         ]
     ],
     "content": "",
@@ -170,12 +173,14 @@ As the attestations are all timestamped, it is convention that a subsequent atte
     "kind": "10100",
     "pubkey": "8e0d3d3eb2881ec137a11debe736a9086715a8c8beeeda615780064d68bc25dd",
     "tags": [
-      ["attest", 1674834236,
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1,7"],
+      "",
-      ["attest", 1721934607,
+      "active:1674834236:1,7"],
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active"]
+      "",
+      "active:1721934607"]
     ],
     "content": "",
     ...
@@ -191,12 +196,14 @@ As the attestations are all timestamped, it is convention that a subsequent atte
     "kind": "10100",
     "pubkey": "8e0d3d3eb2881ec137a11debe736a9086715a8c8beeeda615780064d68bc25dd",
     "tags": [
-      ["attest", 1674834236,
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1,7"],
+      "",
-      ["attest", 1721934607,
+      "active:1674834236:1,7"],
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1"]
+      "",
+      "active:1721934607:1"]
     ],
     "content": "",
     ...
@@ -212,15 +219,18 @@ As the attestations are all timestamped, it is convention that a subsequent atte
     "kind": "10100",
     "pubkey": "8e0d3d3eb2881ec137a11debe736a9086715a8c8beeeda615780064d68bc25dd",
     "tags": [
-      ["attest", 1674834236,
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1,7"],
+      "",
-      ["attest", 1721934607,
+      "active:1674834236:1,7"],
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1"],
+      "",
-      ["attest", 1722343578,
+      "active:1721934607:1"],
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "inactive"]
+      "",
+      "inactive:1722343578"]
     ],
     "content": "",
     ...
@@ -228,7 +238,7 @@ As the attestations are all timestamped, it is convention that a subsequent atte
   }
   ```
 
-- Or instead, if the active account got compromised, and it is best to consider all content published from that account,on-behalf of master account, to be compromised:
+- Or instead, if the active account got compromised, and it is best to consider all content published from that account,on-behalf of master account, to be compromised as well:
 
   ```json
   {
@@ -236,15 +246,18 @@ As the attestations are all timestamped, it is convention that a subsequent atte
     "kind": "10100",
     "pubkey": "8e0d3d3eb2881ec137a11debe736a9086715a8c8beeeda615780064d68bc25dd",
     "tags": [
-      ["attest", 1674834236,
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1,7"],
+      "",
-      ["attest", 1721934607,
+      "active:1674834236:1,7"],
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "active:1"],
+      "",
-      ["attest", 1722343578,
+      "active:1721934607:1"],
+      ["p",
       "477318cfb5427b9cfc66a9fa376150c1ddbc62115ae27cef72417eb959691396",
-      "revoked"]
+      "",
+      "revoked:1722343578"]
     ],
     "content": "",
     ...