Question on requiredStatement

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Florian Kräutli

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Mar 3, 2025, 7:46:44 AMMar 3

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Hi everyone,

I am working on a IIIF Manifest generator and I have a question on the requiredStatement property. As I understand the specs, requiredStatement can be added to any resource and must be rendered by the client. I'm using requiredStatement to specify the image credits for individual images (items) in a manifest. However, I can't see them rendered in any viewer. Am I implementing it wrong?

Here is an example:

```json

{
"@context": "http://iiif.io/api/presentation/3/context.json",
"id": "https://manifest.digital.skkg.ch/iiif/object/6355",
"type": "Manifest",
"label": {
"none": [
"Basler Herbstmesse"
]
},
"metadata": [
{
"label": {
"none": [
"Inv.-Nr."
]
},
"value": {
"none": [
"5639"
]
}
},
...
},
"thumbnail": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/bc45591a-bec8-4e83-adaa-9fd9cad4957c/full/max/0/default.jpg",
"type": "Image",
"height": 959,
"width": 640,
"service": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/bc45591a-bec8-4e83-adaa-9fd9cad4957c",
"type": "ImageService3",
"profile": "level1"
}
],
"format": "image/jpeg"
}
],
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/0/canvas",
"type": "Canvas",
"height": 959,
"width": 640,
"metadata": [
{
"label": {
"none": [
"Typ (Multimedia)"
]
},
"value": {
"none": [
"Bild"
]
}
}
],
"requiredStatement": {
"label": {
"none": [
"Credit:"
]
},
"value": {
"none": [
"© 2025, ProLitteris, Zürich. Foto: SKKG 2020"
]
}
},
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/0/canvas/page",
"type": "AnnotationPage",
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/0/canvas/annotation",
"type": "Annotation",
"motivation": "painting",
"body": {
"id": "https://iiif.digital.skkg.ch/iiif/2/bc45591a-bec8-4e83-adaa-9fd9cad4957c/full/max/0/default.jpg",
"type": "Image",
"height": 959,
"width": 640,
"service": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/bc45591a-bec8-4e83-adaa-9fd9cad4957c",
"type": "ImageService3",
"profile": "level2"
}
],
"format": "image/jpeg"
},
"target": "https://manifest.digital.skkg.ch/iiif/object/6355/image/0/canvas"
}
]
}
]
},
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/1/canvas",
"type": "Canvas",
"height": 7477,
"width": 4987,
"metadata": [
{
"label": {
"none": [
"Typ (Multimedia)"
]
},
"value": {
"none": [
"Bild"
]
}
}
],
"requiredStatement": {
"label": {
"none": [
"Credit:"
]
},
"value": {
"none": [
"CC0 1.0 Foto: SKKG 2020"
]
}
},
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/1/canvas/page",
"type": "AnnotationPage",
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/1/canvas/annotation",
"type": "Annotation",
"motivation": "painting",
"body": {
"id": "https://iiif.digital.skkg.ch/iiif/2/dad44fae-a4df-4f01-94ae-00af6646ca9c/full/max/0/default.jpg",
"type": "Image",
"height": 7477,
"width": 4987,
"service": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/dad44fae-a4df-4f01-94ae-00af6646ca9c",
"type": "ImageService3",
"profile": "level2"
}
],
"format": "image/jpeg"
},
"target": "https://manifest.digital.skkg.ch/iiif/object/6355/image/1/canvas"
}
]
}
]
},
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/2/canvas",
"type": "Canvas",
"height": 7477,
"width": 4987,
"metadata": [
{
"label": {
"none": [
"Typ (Multimedia)"
]
},
"value": {
"none": [
"Bild"
]
}
}
],
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/2/canvas/page",
"type": "AnnotationPage",
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/2/canvas/annotation",
"type": "Annotation",
"motivation": "painting",
"body": {
"id": "https://iiif.digital.skkg.ch/iiif/2/3b72c7bd-59ff-4f9e-b709-513a7a658ab8/full/max/0/default.jpg",
"type": "Image",
"height": 7477,
"width": 4987,
"service": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/3b72c7bd-59ff-4f9e-b709-513a7a658ab8",
"type": "ImageService3",
"profile": "level2"
}
],
"format": "image/jpeg"
},
"target": "https://manifest.digital.skkg.ch/iiif/object/6355/image/2/canvas"
}
]
}
]
},
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/3/canvas",
"type": "Canvas",
"height": 984,
"width": 615,
"metadata": [
{
"label": {
"none": [
"Typ (Multimedia)"
]
},
"value": {
"none": [
"Bild"
]
}
}
],
"requiredStatement": {
"label": {
"none": [
"Credit:"
]
},
"value": {
"none": [
"© 2025, ProLitteris, Zürich. Foto: SIK-ISEA, Zürich"
]
}
},
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/3/canvas/page",
"type": "AnnotationPage",
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/3/canvas/annotation",
"type": "Annotation",
"motivation": "painting",
"body": {
"id": "https://iiif.digital.skkg.ch/iiif/2/a39bb5ca-6d58-46c3-86e5-f5fbe92ba5bf/full/max/0/default.jpg",
"type": "Image",
"height": 984,
"width": 615,
"service": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/a39bb5ca-6d58-46c3-86e5-f5fbe92ba5bf",
"type": "ImageService3",
"profile": "level2"
}
],
"format": "image/jpeg"
},
"target": "https://manifest.digital.skkg.ch/iiif/object/6355/image/3/canvas"
}
]
}
]
},
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/4/canvas",
"type": "Canvas",
"height": 3508,
"width": 2479,
"metadata": [
{
"label": {
"none": [
"Typ (Multimedia)"
]
},
"value": {
"none": [
"Dokument"
]
}
}
],
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/4/canvas/page",
"type": "AnnotationPage",
"items": [
{
"id": "https://manifest.digital.skkg.ch/iiif/object/6355/image/4/canvas/annotation",
"type": "Annotation",
"motivation": "painting",
"body": {
"id": "https://iiif.digital.skkg.ch/iiif/2/13052/full/max/0/default.jpg",
"type": "Image",
"height": 3508,
"width": 2479,
"service": [
{
"id": "https://iiif.digital.skkg.ch/iiif/2/13052",
"type": "ImageService3",
"profile": "level2"
}
],
"format": "image/jpeg"
},
"target": "https://manifest.digital.skkg.ch/iiif/object/6355/image/4/canvas"
}
]
}
]
}
]
}

```

All best,

Florian

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