id.sifa.profile.presentation

sifa.id

Schema Diff

+44 -6

From

CID
bafyreiglzepn2ak...
Indexed At
2026-06-19 22:54 UTC
View this version

To

CID
bafyreiape4s3uph...
Indexed At
2026-08-07 11:35 UTC
View this version

Compatibility Analysis

Backward Compatible

Backward compatible. 2 non-breaking changes.

Non-Breaking Changes (2)
  • AddedVertex AddedVertex { vertex_id: "id.sifa.profile.presentation:body.coverImage" }
  • AddedEdge AddedEdge { src: "id.sifa.profile.presentation:body", tgt: "id.sifa.profile.presentation:body.coverImage", kind: "prop", name: Some("coverImage") }

Migration Guidance

Added Elements

  • AddedVertex { vertex_id: "id.sifa.profile.presentation:body.coverImage" }

Additional Notes

  • Non-breaking: AddedEdge { src: "id.sifa.profile.presentation:body", tgt: "id.sifa.profile.presentation:body.coverImage", kind: "prop", name: Some("coverImage") }
1 1
{
2 2
  "id": "id.sifa.profile.presentation",
3 3
  "defs": {
4 4
    "main": {
5 5
      "key": "tid",
6 6
      "type": "record",
7 7
      "record": {
8 8
        "type": "object",
9 9
        "required": [
10 10
          "title",
11 11
          "createdAt"
12 12
        ],
13 13
        "properties": {
14 14
          "links": {
15 15
            "type": "array",
16 16
            "items": {
17 17
              "ref": "id.sifa.defs#presentationLink",
18 18
              "type": "ref"
19 19
            },
20 20
            "maxLength": 20,
21 21
            "description": "Canonical links for this content, such as slides or a recording."
22 22
          },
23 23
          "title": {
24 24
            "type": "string",
25 25
            "maxLength": 3000,
26 26
            "minLength": 1,
27 27
            "description": "Title of the presentation.",
28 -
            "maxGraphemes": 300
28 +
            "maxGraphemes": 300,
29 +
            "x-skos:exactMatch": [
30 +
              "dcterms:title",
31 +
              "schema:name"
32 +
            ]
29 33
          },
30 34
          "duration": {
31 35
            "ref": "#duration",
32 36
            "type": "ref",
33 -
            "description": "Typical length of the presentation, a fixed value or a range, in minutes."
37 +
            "description": "Typical length of the presentation, a fixed value or a range, in minutes.",
38 +
            "x-skos:note": "The lexicon models a range; schema:timeRequired is a single ISO 8601 duration.",
39 +
            "x-skos:narrowMatch": [
40 +
              "schema:timeRequired"
41 +
            ]
34 42
          },
35 43
          "createdAt": {
36 44
            "type": "string",
37 45
            "format": "datetime",
38 46
            "description": "Client-declared timestamp when this record was originally created."
39 47
          },
48 +
          "coverImage": {
49 +
            "type": "blob",
50 +
            "accept": [
51 +
              "image/png",
52 +
              "image/jpeg",
53 +
              "image/webp"
54 +
            ],
55 +
            "maxSize": 2000000,
56 +
            "description": "Optional cover image for the presentation. Rendered as the talk-page hero and OpenGraph image. Max 2 MB, PNG, JPEG, or WebP.",
57 +
            "x-skos:exactMatch": [
58 +
              "schema:image",
59 +
              "foaf:depiction"
60 +
            ]
61 +
          },
40 62
          "writeupRef": {
41 63
            "ref": "id.sifa.defs#externalRecordRef",
42 64
            "type": "ref",
43 -
            "description": "Optional reference to a long-form write-up of this presentation (a pub.leaflet.document or site.standard.document holding video, transcript, or article)."
65 +
            "description": "Optional reference to a long-form write-up of this presentation (a pub.leaflet.document or site.standard.document holding video, transcript, or article).",
66 +
            "x-skos:closeMatch": [
67 +
              "dcterms:isReferencedBy",
68 +
              "schema:subjectOf"
69 +
            ]
44 70
          },
45 71
          "description": {
46 72
            "type": "string",
47 73
            "maxLength": 50000,
48 74
            "description": "Description or abstract of the presentation.",
49 -
            "maxGraphemes": 5000
75 +
            "maxGraphemes": 5000,
76 +
            "x-skos:exactMatch": [
77 +
              "bibo:abstract",
78 +
              "schema:abstract"
79 +
            ]
50 80
          },
51 81
          "intendedAudiences": {
52 82
            "type": "array",
53 83
            "items": {
54 84
              "type": "string",
55 85
              "maxLength": 1000,
56 86
              "maxGraphemes": 100
57 87
            },
58 88
            "maxLength": 20,
59 -
            "description": "Intended audiences for this presentation, open text (e.g. 'Engineering leaders', 'Beginners')."
89 +
            "description": "Intended audiences for this presentation, open text (e.g. 'Engineering leaders', 'Beginners').",
90 +
            "x-skos:closeMatch": [
91 +
              "schema:audience"
92 +
            ]
60 93
          }
61 94
        }
62 95
      },
63 -
      "description": "Record representing a single reusable presentation (the content), distinct from the occasions on which it is delivered."
96 +
      "description": "Record representing a single reusable presentation (the content), distinct from the occasions on which it is delivered.",
97 +
      "x-skos:note": "Neither term carries the \"reusable, deliverable more than once\" semantics of the Sifa record.",
98 +
      "x-skos:closeMatch": [
99 +
        "bibo:Slideshow",
100 +
        "schema:PresentationDigitalDocument"
101 +
      ]
64 102
    },
65 103
    "duration": {
66 104
      "type": "object",
67 105
      "required": [
68 106
        "minMinutes"
69 107
      ],
70 108
      "properties": {
71 109
        "maxMinutes": {
72 110
          "type": "integer",
73 111
          "minimum": 1,
74 112
          "description": "Upper bound in minutes when the length is offered as a range. Omit for a fixed length."
75 113
        },
76 114
        "minMinutes": {
77 115
          "type": "integer",
78 116
          "minimum": 1,
79 117
          "description": "Length in minutes, or the lower bound when the length is offered as a range."
80 118
        }
81 119
      },
82 120
      "description": "A presentation length in minutes: a fixed value (minMinutes only) or a range (minMinutes to maxMinutes)."
83 121
    }
84 122
  },
85 123
  "$type": "com.atproto.lexicon.schema",
86 124
  "lexicon": 1,
87 125
  "description": "A reusable presentation: the content a person presents (a talk, workshop, poster, or demo), independent of any single occasion on which it is delivered. Delivered at one or more id.sifa.profile.presentationDelivery occasions."
88 126
}

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