diff --git a/32.md b/32.md index c5c62728..f8dc0029 100644 --- a/32.md +++ b/32.md @@ -6,7 +6,30 @@ Labeling `draft` `optional` `author:staab` `author:gruruya` `author:s3x-jay` -A label is a `kind 1985` event that is used to label other entities. This supports a number of use cases, including distributed moderation, collection management, license assignment, and content classification. +A label is a `kind 1985` event that is used to label other entities. This supports a number of use cases, +including distributed moderation, collection management, license assignment, and content classification. + +This NIP introduces two new tags: + +- `L` denotes a label namespace +- `l` denotes a label + +Label Namespace Tag +---- + +An `L` tag can be any string, but publishers SHOULD ensure they are unambiguous by using a well-defined namespace +(such as an ISO standard) or reverse domain name notation. + +`L` tags are REQUIRED in order to support searching by namespace rather than by a specific tag. The special `ugc` +("user generated content") namespace MAY be used when the label content is provided by an end user. + +`L` tags starting with `#` indicate that the label target should be associated with the label's value. +This is a way of attaching standard nostr tags to events, pubkeys, relays, urls, etc. + +Label Tag +---- + +An `l` tag's value can be any string. `l` tags MUST include a `mark` matching an `L` tag value in the same event. Label Target ---- @@ -16,37 +39,18 @@ labeled: `e`, `p`, `a`, `r`, or `t` tags. This allows for labeling of events, pe or topics respectively. As with NIP-01, a relay hint SHOULD be included when using `e` and `p` tags. -Label Tag ----- - -This NIP introduces a new tag `l` which denotes a label, and a new `L` tag which denotes a label namespace. -A label MUST include a mark matching an `L` tag. `L` tags refer to a tag type within nostr, or a nomenclature -external to nostr defined either formally or by convention. Any string can be a namespace, but publishers SHOULD -ensure they are unambiguous by using a well-defined namespace (such as an ISO standard) or reverse domain name notation. - -Namespaces starting with `#` indicate that the label target should be associated with the label's value. -This is a way of attaching standard nostr tags to events, pubkeys, relays, urls, etc. - -Some examples: - -- `["l", "footstr", "#t"]` - the publisher thinks the given entity should have the `footstr` topic applied. -- `["l", "", "#p"]` - the publisher thinks the given entity is related to `` -- `["l", "IT-MI", "ISO-3166-2"]` - Milano, Italy using ISO 3166-2. -- `["l", "VI-hum", "com.example.ontology"]` - Violence toward a human being as defined by ontology.example.com. - -`L` tags containing the label namespaces MUST be included in order to support searching by -namespace rather than by a specific tag. The special `ugc` ("user generated content") namespace -MAY be used when the label content is provided by an end user. - -`l` and `L` tags MAY be added to other event kinds to support self-reporting. For events -with a kind other than 1985, labels refer to the event itself. - Content ------- Labels should be short, meaningful strings. Longer discussions, such as for a review, or an explanation of why something was labeled the way it was, should go in the event's `content` field. +Self-Reporting +------- + +`l` and `L` tags MAY be added to other event kinds to support self-reporting. For events +with a kind other than 1985, labels refer to the event itself. + Example events -------------- @@ -60,39 +64,61 @@ A suggestion that multiple pubkeys be associated with the `permies` topic. ["l", "permies", "#t"], ["p", , ], ["p", , ] - ], - "content": "", - ... + ] } ``` -A review of a relay. +A report flagging violence toward a human being as defined by ontology.example.com. ```json { "kind": 1985, "tags": [ ["L", "com.example.ontology"], - ["l", "relay/review", "com.example.ontology"], - ["r", ], - ["rating", "0.1"] - ], - "content": "This relay is full of mean people.", - ... + ["l", "VI-hum", "com.example.ontology"], + ["p", , ], + ["p", , ] + ] } ``` -Publishers can self-label by adding `l` tags to their own non-1985 events. +A moderation suggestion for a chat event. + +```json +{ + "kind": 1985, + "tags": [ + ["L", "nip28.moderation"], + ["l", "approve", "nip28.moderation"], + ["e", , ] + ], +} +``` + +Assignment of a license to an event. + +```json +{ + "kind": 1985, + "tags": [ + ["L", "license"], + ["l", "MIT", "license"], + ["e", , ] + ], +} +``` + +Publishers can self-label by adding `l` tags to their own non-1985 events. In this case, the kind 1 event's author +is labeling their note as being related to Milan, Italy using ISO 3166-2. ```json { "kind": 1, "tags": [ - ["L", "com.example.ontology"], - ["l", "IL-frd", "com.example.ontology"] + ["L", "ISO-3166-2"], + ["l", "IT-MI", "ISO-3166-2"] ], - "content": "Send me 100 sats and I'll send you 200 back", - ... + "content": "It's beautiful here in Milan!", } ``` @@ -115,3 +141,8 @@ Vocabularies MAY choose to fully qualify all labels within a namespace (for exam formal vocabularies that should not be confused with another namespace when querying without an `L` tag. For these vocabularies, all labels SHOULD include the namespace (rather than mixing qualified and unqualified labels). + +A good heuristic for whether a use case fits this NIP is whether labels would ever be unique. +For example, many events might be labeled with a particular place, topic, or pubkey, but labels +with specific values like "John Doe" or "3.18743" are not labels, they are values, and should +be handled in some other way.