nip31: template-based "alt" tags for known kinds.

Co-authored-by: dskvr <dskvr@users.noreply.github.com>

01.md

@@ -78,8 +78,8 @@ This NIP defines 3 standard tags that can be used across all event kinds with th
 - The `e` tag, used to refer to an event: `["e", <32-bytes lowercase hex of the id of another event>, <recommended relay URL, optional>, <32-bytes lowercase hex of the author's pubkey, optional>]`
 - The `p` tag, used to refer to another user: `["p", <32-bytes lowercase hex of a pubkey>, <recommended relay URL, optional>]`
 - The `a` tag, used to refer to an addressable or replaceable event
-    - for an addressable event: `["a", <kind integer>:<32-bytes lowercase hex of a pubkey>:<d tag value>, <recommended relay URL, optional>]`
+    - for an addressable event: `["a", "<kind integer>:<32-bytes lowercase hex of a pubkey>:<d tag value>", <recommended relay URL, optional>]`
-    - for a normal replaceable event: `["a", <kind integer>:<32-bytes lowercase hex of a pubkey>:, <recommended relay URL, optional>]`
+    - for a normal replaceable event: `["a", "<kind integer>:<32-bytes lowercase hex of a pubkey>:", <recommended relay URL, optional>]` (note: include the trailing colon)
 
 As a convention, all single-letter (only english alphabet letters: a-z, A-Z) key tags are expected to be indexed by relays, such that it is possible, for example, to query or subscribe to events that reference the event `"5c83da77af1dec6d7289834998ad7aafbd9e2191396d75ec3cc27f5a77226f36"` by using the `{"#e": ["5c83da77af1dec6d7289834998ad7aafbd9e2191396d75ec3cc27f5a77226f36"]}` filter. Only the first value in any given tag is indexed.
 

17.md

@@ -21,7 +21,7 @@ Kind `14` is a chat message. `p` tags identify one or more receivers of the mess
   "tags": [
     ["p", "<receiver-1-pubkey>", "<relay-url>"],
     ["p", "<receiver-2-pubkey>", "<relay-url>"],
-    ["e", "<kind-14-id>", "<relay-url>", "reply"] // if this is a reply
+    ["e", "<kind-14-id>", "<relay-url>"] // if this is a reply
     ["subject", "<conversation-title>"],
     // rest of tags...
   ],
@@ -31,7 +31,13 @@ Kind `14` is a chat message. `p` tags identify one or more receivers of the mess
 
 `.content` MUST be plain text. Fields `id` and `created_at` are required.
 
-Tags that mention, quote and assemble threading structures MUST follow [NIP-10](10.md).
+An `e` tag denotes the direct parent message this post is replying to. 
+
+`q` tags MAY be used when citing events in the `.content` with [NIP-21](21.md).
+
+```json
+["q", "<event-id> or <event-address>", "<relay-url>", "<pubkey-if-a-regular-event>"]
+```
 
 Kind `14`s MUST never be signed. If it is signed, the message might leak to relays and become **fully public**.
 

25.md

@@ -25,26 +25,21 @@ consider it a "+".
 Tags
 ----
 
-The reaction event SHOULD include `e` and `p` tags from the note the user is reacting to (and optionally `a` tags if the target is a replaceable event). This allows users to be notified of reactions to posts they were mentioned in. Including the `e` tags enables clients to pull all the reactions associated with individual posts or all the posts in a thread. `a` tags enables clients to seek reactions for all versions of a replaceable event.
+There MUST be always an `e` tag set to the `id` of the event that is being reacted to. The `e` tag SHOULD include a relay hint pointing to a relay where the event being reacted to can be found. If a client decides to include other `e`, which not recommended, the target event `id` should be last of the `e` tags.
 
-The last `e` tag MUST be the `id` of the note that is being reacted to.
+The SHOULD be a `p` tag set to the `pubkey` of the event being reacted to. If a client decides to include other `p` tags, which not recommended, the target event `pubkey` should be last the `p` tags.
 
-The last `p` tag MUST be the `pubkey` of the event being reacted to.
+If the event being reacted to is an addressable event, an `a` SHOULD be included together with the `e` tag, it must be set to the coordinates (`kind:pubkey:d-tag`) of the event being reacted to.
 
-The `a` tag MUST contain the coordinates (`kind:pubkey:d-tag`) of the replaceable being reacted to.
+The reaction SHOULD include a `k` tag with the stringified kind number of the reacted event as its value.
 
-The reaction event MAY include a `k` tag with the stringified kind number of the reacted event as its value.
+**Example code**
-
-Example code
 
 ```swift
 func make_like_event(pubkey: String, privkey: String, liked: NostrEvent) -> NostrEvent {
-    var tags: [[String]] = liked.tags.filter {
+    tags.append(["e", liked.id, liked.source_relays.first ?? ""])
-    	tag in tag.count >= 2 && (tag[0] == "e" || tag[0] == "p")
-    }
-    tags.append(["e", liked.id])
     tags.append(["p", liked.pubkey])
-    tags.append(["k", liked.kind])
+    tags.append(["k", String(liked.kind)])
     let ev = NostrEvent(content: "+", pubkey: pubkey, kind: 7, tags: tags)
     ev.calculate_id()
     ev.sign(privkey: privkey)

27.md

@@ -10,7 +10,7 @@ This document standardizes the treatment given by clients of inline references o
 
 When creating an event, clients should include mentions to other profiles and to other events in the middle of the `.content` using [NIP-21](21.md) codes, such as `nostr:nprofile1qqsw3dy8cpu...6x2argwghx6egsqstvg`.
 
-Including [NIP-10](10.md)-style tags (`["e", <hex-id>, <relay-url>, <marker>]`) for each reference is optional, clients should do it whenever they want the profile being mentioned to be notified of the mention, or when they want the referenced event to recognize their mention as a reply.
+Including [NIP-18](18.md)'s quote tags (`["q", "<event-id> or <event-address>", "<relay-url>", "<pubkey-if-a-regular-event>"]`) for each reference is optional, clients should do it whenever they want the profile being mentioned to be notified of the mention, or when they want the referenced event to recognize their mention as a reply.
 
 A reader client that receives an event with such `nostr:...` mentions in its `.content` can do any desired context augmentation (for example, linking to the profile or showing a preview of the mentioned event contents) it wants in the process. If turning such mentions into links, they could become internal links, [NIP-21](21.md) links or direct links to web clients that will handle these references.
 

31.md

@@ -6,10 +6,43 @@ Dealing with unknown event kinds
 
 `draft` `optional`
 
-When creating a new custom event kind that is part of a custom protocol and isn't meant to be read as text (like `kind:1`), clients should use an `alt` tag to write a short human-readable plaintext summary of what that event is about.
+When faced with an event of an unknown or unsupported kind, clients still have to display _something_ to the user.
 
-The intent is that social clients, used to display only `kind:1` notes, can still show something in case a custom event pops up in their timelines. The content of the `alt` tag should provide enough context for a user that doesn't know anything about this event kind to understand what it is.
+Besides indicating that the event kind is not supported and suggesting other clients to handle it (possibly using [NIP-89](89.md)) clients may try these two alternatives:
 
-These clients that only know `kind:1` are not expected to ask relays for events of different kinds, but users could still reference these weird events on their notes, and without proper context these could be nonsensical notes. Having the fallback text makes that situation much better -- even if only for making the user aware that they should try to view that custom event elsewhere.
+1. Display text generated from a hardcoded or dynamic template;
+2. Display the value of the event's `alt` tag;
 
-`kind:1`-centric clients can make interacting with these event kinds more functional by supporting [NIP-89](89.md).
+(Of course if both are unavailable then the client has to decide on something else, like displaying a generic error message or the raw JSON contents or something else.)
+
+### Templates
+
+Templates can be either hardcoded by application developers or downloaded at runtime (or downloaded at compile-time) from a trusted provider or from a library, anything.
+
+They consist of a [Mustache](https://mustache.github.io/)-compatible template (with no loops or partials) that takes the following parameters:
+
+- `kind`
+- `created_at`
+- `pubkey`
+- `content`
+- `tags`
+
+In which each of these values corresponds to the attribute of the event with the same name, except for `tags`, which is treated as an object with key-value access given by the first two items of each tag (and in the case of multiple tags with the same key only one, presumably the first, should be used).
+
+**For example,**
+  - a reasonable template for a `kind:1111` event (comment) would be: `{{content}}`
+  - a reasonable template for a `kind:14` event (direct message) would be: `encrypted message to {{tags.p}}`
+  - a reasonable template for a `kind:7` event (reaction) would be: `{{pubkey}} reacts to {{tags.e}} by {{tags.p}}{{#content}} with {{.}}{{/content}}`
+  - a reasonable template for a `kind:30617` event (repository announcement) would be: `git repository {{tags.name}}{{#tags.web}}hosted at {{.}}{{/tags.web}} by {{pubkey}}`
+  - a reasonable template for a `kind:10002` event (relay list) would be: `canonical relays list for {{pubkey}}`
+  - a reasonable template for a `kind:31922` event (calendar) would be: `{{tags.title}} happening at {{tags.start}}`
+
+To be easily exchangeable and reusable, trusted providers that want to do it SHOULD serve these templates through HTTP at `https://<domain-name>/.well-known/nip31/<kind-number>`, returning just the raw text.
+
+Clients MAY format `{{pubkey}}` into a clickable `nostr:npub1...` link, or print `created_at` as a human-friendly date instead of as a timestamp, or anything like that.
+
+### `alt` tags
+
+When creating a new custom event kind that is part of a custom protocol and isn't meant to be read as text, clients SHOULD write an `alt` tag to include a short human-readable plaintext summary of what that event is about.
+
+This is recommended for a while, until clients and providers have been given enough time to update their templates, then clients should stop doing it.

34.md

@@ -22,9 +22,10 @@ Git repositories are hosted in Git-enabled servers, but their existence can be a
     ["description", "brief human-readable project description>"],
     ["web", "<url for browsing>", ...], // a webpage url, if the git server being used provides such a thing
     ["clone", "<url for git-cloning>", ...], // a url to be given to `git clone` so anyone can clone it
-    ["relays", "<relay-url>", ...] // relays that this repository will monitor for patches and issues
+    ["relays", "<relay-url>", ...], // relays that this repository will monitor for patches and issues
-    ["r", "<earliest-unique-commit-id>", "euc"]
+    ["r", "<earliest-unique-commit-id>", "euc"],
-    ["maintainers", "<other-recognized-maintainer>", ...]
+    ["maintainers", "<other-recognized-maintainer>", ...],
+    ["t", "<arbitrary string>"], // hashtags labelling the repository
   ]
 }
 ```

51.md

@@ -24,12 +24,12 @@ For example, _mute list_ can contain the public keys of spammers and bad actors
 | ---               | ---   | ---                                                         | ---                                                                                                 |
 | Mute list         | 10000 | things the user doesn't want to see in their feeds          | `"p"` (pubkeys), `"t"` (hashtags), `"word"` (lowercase string), `"e"` (threads)                     |
 | Pinned notes      | 10001 | events the user intends to showcase in their profile page   | `"e"` (kind:1 notes)                                                                                |
+| Read/write relays | 10002 | where a user publishes to and where they expect mentions    | see [NIP-65](65.md)                                                                                 |
 | Bookmarks         | 10003 | uncategorized, "global" list of things a user wants to save | `"e"` (kind:1 notes), `"a"` (kind:30023 articles), `"t"` (hashtags), `"r"` (URLs)                   |
 | Communities       | 10004 | [NIP-72](72.md) communities the user belongs to             | `"a"` (kind:34550 community definitions)                                                            |
 | Public chats      | 10005 | [NIP-28](28.md) chat channels the user is in                | `"e"` (kind:40 channel definitions)                                                                 |
 | Blocked relays    | 10006 | relays clients should never connect to                      | `"relay"` (relay URLs)                                                                              |
 | Search relays     | 10007 | relays clients should use when performing search queries    | `"relay"` (relay URLs)                                                                              |
-| Global relays     | 10008 | relays considered a good target for unfiltered discovery    | `"relay"` (relay URLs)                                                                              |
 | Simple groups     | 10009 | [NIP-29](29.md) groups the user is in                       | `"group"` ([NIP-29](29.md) group id + relay URL + optional group name), `"r"` for each relay in use |
 | Interests         | 10015 | topics a user may be interested in and pointers             | `"t"` (hashtags) and `"a"` (kind:30015 interest set)                                                |
 | Emojis            | 10030 | user preferred emojis and pointers to emoji sets            | `"emoji"` (see [NIP-30](30.md)) and `"a"` (kind:30030 emoji set)                                    |

53.md

@@ -63,7 +63,7 @@ This feature is important to avoid malicious event owners adding large account h
 
 ### Live Chat Message
 
-Event `kind:1311` is live chat's channel message. Clients MUST include the `a` tag of the activity with a `root` marker. Other Kind-1 tags such as `reply` and `mention` can also be used.
+Event `kind:1311` is live chat's channel message. Clients MUST include the `a` tag of the activity. An `e` tag denotes the direct parent message this post is replying to. 
 
 ```jsonc
 {
@@ -76,6 +76,12 @@ Event `kind:1311` is live chat's channel message. Clients MUST include the `a` t
 }
 ```
 
+`q` tags MAY be used when citing events in the `.content` with [NIP-21](21.md).
+
+```json
+["q", "<event-id> or <event-address>", "<relay-url>", "<pubkey-if-a-regular-event>"]
+```
+
 Hosts may choose to pin one or more live chat messages by updating the `pinned` tags in the live event kind `30311`.
 
 ## Use Cases

55.md

@@ -10,7 +10,7 @@ This NIP describes a method for 2-way communication between an Android signer an
 
 # Usage for Android applications
 
-The Android signer uses Intents and Content Resolvers to communicate between applications.
+The Android signer uses Intents (to accept/reject permissions manually) and Content Resolvers (to accept/reject permissions automatically in background if the user allowed it) to communicate between applications.
 
 To be able to use the Android signer in your application you should add this to your AndroidManifest.xml:
 
@@ -66,7 +66,7 @@ Create the Intent using the **nostrsigner** scheme:
 val intent = Intent(Intent.ACTION_VIEW, Uri.parse("nostrsigner:$content"))
 ```
 
-Set the Signer package name:
+Set the Signer package name after you receive the response from **get_public_key** method:
 
 ```kotlin
 intent.`package` = "com.example.signer"
@@ -114,7 +114,6 @@ launcher.launch(intent)
 
     ```kotlin
     val intent = Intent(Intent.ACTION_VIEW, Uri.parse("nostrsigner:"))
-    intent.`package` = "com.example.signer"
     intent.putExtra("type", "get_public_key")
     // You can send some default permissions for the user to authorize for ever
     val permissions = listOf(
@@ -130,7 +129,7 @@ launcher.launch(intent)
     context.startActivity(intent)
     ```
   - result:
-    - If the user approved intent it will return the **pubkey** in the result field
+    - If the user approved the intent it will return the **pubkey** in the result field and the signer packageName in the **package** field
 
       ```kotlin
       val pubkey = intent.data?.getStringExtra("result")
@@ -485,6 +484,8 @@ If the user chose to always reject the event, signer application will return the
 
 # Usage for Web Applications
 
+You should consider using [NIP-46: Nostr Connect](46.md) for a better experience for web applications. When using this approach, the web app can't call the signer in the background, so the user will see a popup for every event you try to sign.
+
 Since web applications can't receive a result from the intent, you should add a modal to paste the signature or the event json or create a callback url.
 
 If you send the callback url parameter, Signer Application will send the result to the url.

62.md

@@ -0,0 +1,61 @@
+NIP-62
+======
+
+Request to Vanish
+-----------------
+
+`draft` `optional`
+
+This NIP offers a Nostr-native way to request a complete reset of a key's fingerprint on the web. This procedure is legally binding in some jurisdictions, and thus, supporters of this NIP should truly delete events from their database. 
+
+## Request to Vanish from Relay
+
+Kind `62` requests a specific relay to delete everything, including [NIP-09](09.md) Deletion Events, from the `.pubkey` until its `.created_at`. 
+
+```jsonc
+{
+  "kind": 62,
+  "pubkey": <32-byte hex-encoded public key of the event creator>,
+  "tags": [
+    ["relay", "<relay url>"]
+  ],
+  "content": "<reason or note>",
+  //...other fields
+}
+```
+
+The tag list MUST include at least one `relay` value. 
+
+Content MAY include a reason or a legal notice to the relay operator. 
+
+Relays MUST fully delete any events from the `.pubkey` if their service URL is tagged in the event. 
+
+Relays SHOULD delete all [NIP-59](59.md) Gift Wraps that p-tagged the `.pubkey` if their service URL is tagged in the event, deleting all DMs to the pubkey.
+
+Relays MUST ensure the deleted events cannot be re-broadcasted into the relay. 
+
+Relays MAY store the signed request to vanish for bookkeeping.
+
+Paid relays or relays that restrict who can post MUST also follow the request to vanish regardless of the user's status. 
+
+Publishing a deletion request event (Kind `5`) against a request to vanish has no effect. Clients and relays are not obliged to support "unrequest vanish" functionality.
+
+Clients SHOULD send this event to the target relays only. 
+
+## Global Request to Vanish
+
+To request ALL relays to delete everything, the event MUST include a `relay` tag with the value `ALL_RELAYS` in uppercase. 
+
+```jsonc
+{
+  "kind": 62,
+  "pubkey": <32-byte hex-encoded public key of the event creator>,
+  "tags": [
+    ["relay", "ALL_RELAYS"]
+  ],
+  "content": "<reason>",
+  //...other fields
+}
+```
+
+Clients SHOULD broadcast this event to as many relays as possible. 

66.md

@@ -0,0 +1,250 @@
+# NIP-66: Relay Discovery and Liveness Monitoring
+
+`draft` `optional`
+
+You want to find relays. You may want to discover relays based on criteria that's up to date. You may even want to ensure that you have a complete dataset. You probably want to filter relays based on their reported liveness.
+
+In its purest form:
+
+```json
+{
+  "kind": 30166,
+  "created_at": 1722173222,  
+  "content": "{}",
+  "tags": [
+    [ "d", "wss://somerelay.abc/" ]
+  ],
+  "pubkey": "<pubkey>", 
+  "sig": "<signature>",
+  "id": "<eventid>"
+}
+```
+
+This event signals that the relay at `wss://somerelay.abc/` was reported "online" by `<pubkey>` at timestamp `1722173222`. This event **MAY** be extended upon to include more information.
+
+## Kinds
+`NIP-66` defines two (2) event kinds, `30166` and `10166`
+
+| kind  | name                       | description                                                                             |
+|-------|----------------------------|-----------------------------------------------------------------------------------------|
+| [30166](#k30166) | Relay Discovery      | An addressable event that is published by a monitor when a relay is online |
+| [10166](#k10166) | Relay Monitor Announcement | An RE that stores data that signals the intent of a pubkey to monitor relays and publish `30166` events at a regular _frequency_ |
+
+## Ontology
+- `Relay Operator`: someone who operates a relay 
+- `Monitor`: A pubkey that monitors relays and publishes `30166` events at the frequency specified in their `10166` event.
+- `Ad-hoc Monitor`: A pubkey that monitors relays and publishes `30166` events at an irregular frequency.
+- `Monitor Service`: A group or individual that monitors relays using one or more `Monitors`.
+- `Check`: a specific data point that is tested or aggregated by a monitor.
+
+## `30166`: "Relay Discovery" <a id="k30166"></a>
+
+### Summary
+`30166` is a `NIP-33` addressable event, referred to as a "Relay Discovery" event. These events are optimized with a small footprint for protocol-level relay Discovery.
+
+### Purpose 
+Discovery of relays over nostr. 
+
+### Schema 
+
+#### Content 
+`30166` content fields **SHOULD** include the stringified JSON of the relay's NIP-11 informational document. This data **MAY** be provided for informational purposes only. 
+
+#### `created_at`
+The `created_at` field in a NIP-66 event should reflect the time when the relay liveness (and potentially other data points) was checked.
+
+#### `tags`
+
+##### Meta Tags (unindexed)
+- `rtt-open` The relay's open **round-trip time** in milliseconds.
+- `rtt-read` The relay's read **round-trip time** in milliseconds.
+- `rtt-write` The relay's write **round-trip time** in milliseconds.
+
+_Other `rtt` values **MAY** be present. This NIP should be updated if there is value found in more `rtt` values._
+
+##### Single Letter Tags (indexed)
+- `d` The relay URL/URI. The `#d` tag **must** be included in the `event.tags[]` array. Index position `1` **must** be the relay websocket URL/URI. If a URL it **SHOULD** be [normalized](https://datatracker.ietf.org/doc/html/rfc3986#section-6). For relays not accessible via conventional means but rather by an npub/pubkey, an npub/pubkey **MAY** be used in place of a URL.
+  ```json
+  [ "d", "wss://somerelay.abc/"]
+  ```
+
+- `n`: Network
+  ```json
+  [ "n", "clearnet" ]
+  ```
+
+- `T`: Relay Type. Enumerated [relay type](https://github.com/nostr-protocol/nips/issues/1282) formatted as `PascalCase`
+  ```json
+  ["T", "PrivateInbox" ]
+  ```
+
+- `N`: Supported Nips _From NIP-11 "Informational Document" `nip11.supported_nips[]`_
+  ```json
+  [ "N", "42" ]
+  ```
+
+- `R`: Requirements _NIP-11 "Informational Document" `nip11.limitations.payment_required`, `nip11.limitations.auth_required` and/or any other boolean value within `nip11.limitations[]` that is added in the future_
+  ```json
+  [ "R", "payment" ],
+  [ "R", "auth" ],
+  ```
+  Since the nostr protocol does not currently support filtering on whether an indexed tag **is** or **is not** set, to make "public" and "no auth" relays discoverable requires a `!` flag
+
+  ```json
+  [ "R", "!payment" ], //no payment required, is public
+  [ "R", "!auth" ], //no authentication required
+  ```
+
+- `t`: "Topics" _From NIP-11 "Informational Document" `nip11.tags[]`_
+  ```json
+  [ "t", "nsfw" ]
+  ```
+
+- `k`: Accepted/Blocked Kinds [`NIP-22`]
+  ```json
+  [ "k", "0" ],
+  [ "k", "3" ],
+  [ "k", "10002" ]
+  ```
+
+  or for blocked kinds
+
+  ```json
+  [ "k", "!0" ]
+  [ "k", "!3" ],
+  [ "k", "!10002" ]
+  ```
+
+- `g`: `NIP-52` `g` tags (geohash)
+  ```json
+  [ "g", "9r1652whz" ]
+  ```
+
+- `30166` **MAY** be extended with global tags defined by other NIPs that do no collide with locally defined indices, including but not limited to: `p`, `t`, `e`, `a`, `i` and `l/L`. 
+
+#### Robust Example of a `30166` Event
+_Relay was online, and you can filter on a number of different tags_
+```json
+{
+  "id": "<eventid>",
+  "pubkey": "<monitor's pubkey>",
+  "created_at": "<created_at  [some recent date ...]>",
+  "signature": "<signature>",
+  "content": "{}",
+  "kind": 30166,
+  "tags": [  
+    ["d","wss://some.relay/"],
+    ["n", "clearnet"],
+    ["N", "40"],
+    ["N", "33"],
+    ["R", "!payment"],
+    ["R", "auth"],
+    ["g", "ww8p1r4t8"],
+    ["p", "somehexkey..."],
+    ["l", "en", "ISO-639-1"],
+    ["t", "nsfw" ],
+    ["rtt-open", 234 ]
+  ]
+} 
+```
+
+## `10166`: "Relay Monitor Announcement" Events <a id="k10166"></a>
+
+### Summary 
+`10166` is a replacable event herein referred to as "Relay Monitor Announcement" events. These events contain information about a publisher's intent to monitor and publish data as `30166` events. This event is optional and is intended for monitors who intend to provide monitoring services at a regular and predictable frequency.
+
+### Purpose 
+To provide a directory of monitors, their intent to publish, their criteria and parameters of monitoring activities. Absence of this event implies the monitor is ad-hoc and does not publish events at a predictable frequency, and relies on mechanisms to infer data integrity, such as web-of-trust.
+
+### Schema
+
+#### Standard Tags
+
+- `frequency` The frequency **in seconds** at which the monitor publishes events. A string-integer at index `1` represents the expected frequency the monitor will publish `30166` events. There should only be `1` frequency per monitor. 
+
+  ```json
+  [ "frequency", "3600" ]
+  ```
+
+- `timeout` (optional) The timeout values for various checks conducted by a monitor. Index `1` is the monitor's timeout in milliseconds. Index `2` describes what test the timeout is used for. If no index `2` is provided, it is inferred that the timeout provided applies to all tests. These values can assist relay operators in understanding data signaled by the monitor in _Relay Discovery Events_. 
+  ```json
+  [ "timeout", "2000", "open" ],
+  [ "timeout", "2000", "read" ],
+  [ "timeout", "3000", "write" ],
+  [ "timeout", "2000", "nip11" ],
+  [ "timeout", "4000", "ssl" ]
+  ```
+
+#### Indexed Tags
+- `c`  "Checks" **SHOULD** be a lowercase string describing the check(s) conducted by a monitor. Due to the rapidly evolving nature of relays, enumeration is organic and not strictly defined. But examples of some checks could be websocket `open/read/write/auth`, `nip11` checks, `dns` and `geo` checks, and and any other checks the monitor may deem useful.. Other checks **MAY** be included. New types of checks **SHOULD** be added to this NIP as they are needed.
+  ```json
+  [ "c", "ws" ],
+  [ "c", "nip11" ],
+  [ "c", "dns" ],
+  [ "c", "geo" ],
+  [ "c", "ssl" ],
+  ```
+
+- `g`: `NIP-52` `g` tags (geohash)
+  ```json
+  [ "g", "9r1652whz" ]
+  ```
+
+- Any other globally defined indexable tags **MAY** be included as found necessary.
+
+### Other Requirements
+Monitors **SHOULD** have the following 
+- A published `0` (NIP-1) event
+- A published `10002` (NIP-65) event that defines the relays the monitor publishes to.
+
+### Robust Example of a `10166` Event
+```json
+{
+  "id": "<eventid>",
+  "pubkey": "<monitor's pubkey>",
+  "created_at": "<created_at  [some recent date ...]>",
+  "signature": "<signature>",
+  "content": "",
+  "tags": [  
+
+    [ "timeout", "open", "5000"  ],
+    [ "timeout", "read", "3000"  ],
+    [ "timeout", "write", "3000" ],
+    [ "timeout", "nip11", "3000" ],
+
+    [ "frequency", "3600" ],
+
+    [ "c", "ws" ],
+    [ "c", "nip11" ],
+    [ "c", "ssl" ],
+    [ "c", "dns" ],
+    [ "c", "geo" ]
+
+    [ "g", "ww8p1r4t8" ]
+  ]
+} 
+```
+
+## Methodology 
+
+### Monitors
+1. A _Relay Monitor_ checks the liveness and potentially other attributes of a relay. 
+
+2. _Relay Monitor_ publishes a kind `30166` note when a relay it is monitoring is online. If the monitor has a `10166` event, events should be published at the frequency defined in their `10166` note. 
+
+_Any pubkey that publishes `30166` events **SHOULD** at a minimum be checking that the relay is available by websocket and behaves like a relay_
+
+### Clients
+1. In most cases, a client **SHOULD** filter on `30166` events using either a statically or dynamically defined monitor's `pubkey` and a `created_at` value respective of the monitor's published `frequency`. If the monitor has no stated frequency, other mechanisms should be employed to determine data integrity.
+
+2. _Relay Liveness_ is subjectively determined by the client, starting with the `frequency` value of a monitor. 
+
+3. The liveness of a _Relay Monitor_ can be subjectively determined by detecting whether the _Relay Monitor_ has published events with respect to `frequency` value of any particular monitor.
+
+4. The reliability and trustworthiness of a _Relay Monitor_ could be established via web-of-trust, reviews or similar mechanisms. 
+
+## Risk Mitigation
+
+- When a client implements `NIP-66` events, the client should have a fallback if `NIP-66` events cannot be located.
+
+- A `Monitor` or `Ad-hoc Monitor` may publish erroneous `30166` events, intentionally or otherwise. Therefor, it's important to program defensively to limit the impact of such events. This can be achieved with web-of-trust, reviews, fallbacks and/or data-aggregation for example.

BREAKING.md

@@ -5,6 +5,8 @@ reverse chronological order.
 
 | Date        | Commit    | NIP      | Change |
 | ----------- | --------- | -------- | ------ |
+| 2025-02-14  | [81908b6e](https://github.com/nostr-protocol/nips/commit/81908b6e) | [07](07.md), [46](46.md), [55](55.md) | `getRelays` and `get_relays` were removed |
+| 2025-02-07  | [0023ca81](https://github.com/nostr-protocol/nips/commit/0023ca81) | [10](10.md) | `"mention"` marker was removed |
 | 2025-01-31  | [6a4b125a](https://github.com/nostr-protocol/nips/commit/6a4b125a) | [71](71.md) | video events were changed to regular |
 | 2024-12-05  | [6d16019e](https://github.com/nostr-protocol/nips/commit/6d16019e) | [46](46.md) | message encryption was changed to NIP-44 |
 | 2024-11-12  | [2838e3bd](https://github.com/nostr-protocol/nips/commit/2838e3bd) | [29](29.md) | `kind: 12` and `kind: 10` were removed (use `kind: 1111` instead) |

README.md

@@ -77,8 +77,10 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 - [NIP-59: Gift Wrap](59.md)
 - [NIP-60: Cashu Wallet](60.md)
 - [NIP-61: Nutzaps](61.md)
+- [NIP-62: Request to Vanish](62.md)
 - [NIP-64: Chess (PGN)](64.md)
 - [NIP-65: Relay List Metadata](65.md)
+- [NIP-66: Relay Discovery and Liveness Monitoring](66.md)
 - [NIP-68: Picture-first feeds](68.md)
 - [NIP-69: Peer-to-peer Order events](69.md)
 - [NIP-70: Protected Events](70.md)
@@ -130,6 +132,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 | `42`          | Channel Message                 | [28](28.md)                            |
 | `43`          | Channel Hide Message            | [28](28.md)                            |
 | `44`          | Channel Mute User               | [28](28.md)                            |
+| `62`          | Request to Vanish               | [62](62.md)                            |
 | `64`          | Chess (PGN)                     | [64](64.md)                            |
 | `818`         | Merge Requests                  | [54](54.md)                            |
 | `1018`        | Poll Response                   | [88](88.md)                            |
@@ -169,13 +172,12 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 | `9802`        | Highlights                      | [84](84.md)                            |
 | `10000`       | Mute list                       | [51](51.md)                            |
 | `10001`       | Pin list                        | [51](51.md)                            |
-| `10002`       | Relay List Metadata             | [65](65.md)                            |
+| `10002`       | Relay List Metadata             | [65](65.md), [51](51.md)               |
 | `10003`       | Bookmark list                   | [51](51.md)                            |
 | `10004`       | Communities list                | [51](51.md)                            |
 | `10005`       | Public chats list               | [51](51.md)                            |
 | `10006`       | Blocked relays list             | [51](51.md)                            |
 | `10007`       | Search relays list              | [51](51.md)                            |
-| `10008`       | Global relays list              | [51](51.md)                            |
 | `10009`       | User groups                     | [51](51.md), [29](29.md)               |
 | `10013`       | Private event relay list        | [37](37.md)                            |
 | `10015`       | Interests list                  | [51](51.md)                            |
@@ -184,6 +186,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 | `10050`       | Relay list to receive DMs       | [51](51.md), [17](17.md)               |
 | `10063`       | User server list                | [Blossom][blossom]                     |
 | `10096`       | File storage server list        | [96](96.md)                            |
+| `10166`       | Relay Monitor Announcement      | [66](66.md)                            |
 | `13194`       | Wallet Info                     | [47](47.md)                            |
 | `17375`       | Cashu Wallet Event              | [60](60.md)                            |
 | `21000`       | Lightning Pub RPC               | [Lightning.Pub][lnpub]                 |
@@ -214,6 +217,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 | `30041`       | Modular Article Content         | [NKBIP-01]                             |
 | `30063`       | Release artifact sets           | [51](51.md)                            |
 | `30078`       | Application-specific Data       | [78](78.md)                            |
+| `30166`       | Relay Discovery                 | [66](66.md)                            |
 | `30267`       | App curation sets               | [51](51.md)                            |
 | `30311`       | Live Event                      | [53](53.md)                            |
 | `30315`       | User Statuses                   | [38](38.md)                            |
@@ -300,7 +304,7 @@ They exist to document what may be implemented by [Nostr](https://github.com/nos
 | `s`               | status                               | --                              | [69](69.md)                                        |
 | `t`               | hashtag                              | --                              | [24](24.md), [34](34.md), [35](35.md)              |
 | `u`               | url                                  | --                              | [61](61.md), [98](98.md)                           |
-| `x`               | infohash                             | --                              | [35](35.md)                                        |
+| `x`               | hash                                 | --                              | [35](35.md), [56](56.md)                           |
 | `y`               | platform                             | --                              | [69](69.md)                                        |
 | `z`               | order number                         | --                              | [69](69.md)                                        |
 | `-`               | --                                   | --                              | [70](70.md)                                        |