# app.gainforest.ac.multimedia > Published by [gainforest.earth](https://lexicon.garden/identity/did:plc:qoti4acfmc5wg6zzmtix6hse) ✓ This is the authoritative definition for this NSID. ## Description Audubon Core multimedia resource record. Represents a single media item (image, audio, video, spectrogram) associated with a biodiversity occurrence. Based on the TDWG Audiovisual Core standard (http://www.tdwg.org/standards/638). Each media item is a separate record linked to a dwc.occurrence via occurrenceRef. ## Links - [View on Lexicon Garden](https://lexicon.garden/lexicon/did:plc:qoti4acfmc5wg6zzmtix6hse/app.gainforest.ac.multimedia) - [Documentation](https://lexicon.garden/lexicon/did:plc:qoti4acfmc5wg6zzmtix6hse/app.gainforest.ac.multimedia/docs) - [Examples](https://lexicon.garden/lexicon/did:plc:qoti4acfmc5wg6zzmtix6hse/app.gainforest.ac.multimedia/examples) ## Definitions ### `app.gainforest.ac.multimedia` **Type**: `record` **Key**: `tid` | Property | Type | Required | Description | |----------|------|----------|-------------| | `file` | `blob` | Yes | The media file blob. Images up to 100MB, audio up to 100MB, video up to 100MB. For PDS-stored compressed versions; original full-res referenced via accessUri. | | `format` | `string` | No | MIME type of the media file (e.g. image/webp, audio/flac). Should match the blob's actual content type. | | `caption` | `string` | No | Human-readable description of the media content. | | `creator` | `string` | No | Name of the person or agent who created the media resource. | | `siteRef` | `string` (at-uri) | No | AT-URI of the organization site record where this media was captured. | | `accessUri` | `string` (uri) | No | URI to the original full-resolution media resource (e.g. S3 URL). The PDS blob is a compressed variant; this points to the archival original. | | `createdAt` | `string` (datetime) | Yes | Timestamp of record creation in the ATProto PDS. | | `createDate` | `string` (datetime) | No | Date and time the media resource was originally created (e.g. when the photo was taken). | | `subjectPart` | `string` | Yes | The part of the organism depicted, using TDWG Audubon Core subjectPart controlled values (http://rs.tdwg.org/acpart/values/). Examples: entireOrganism, leaf, bark, flower, fruit, seed, stem, twig, bud, root. | | `occurrenceRef` | `string` (at-uri) | No | AT-URI of the dwc.occurrence record this media is evidence for. | | `subjectPartUri` | `string` (uri) | No | Full IRI of the subjectPart term from the TDWG controlled vocabulary. Example: http://rs.tdwg.org/acpart/values/p0002 for bark. | | `variantLiteral` | `string` | No | AC variant describing the quality/size of this service access point. Values: Thumbnail, Lower Quality, Medium Quality, Good Quality, Best Quality, Offline. | | `subjectOrientation` | `string` | No | Viewing orientation relative to the subject, using TDWG Audubon Core subjectOrientation controlled values. Examples: dorsal, ventral, lateral, anterior, posterior. | ## Raw Schema ```json { "id": "app.gainforest.ac.multimedia", "defs": { "main": { "key": "tid", "type": "record", "record": { "type": "object", "required": [ "subjectPart", "file", "createdAt" ], "properties": { "file": { "type": "blob", "accept": [ "image/jpeg", "image/jpg", "image/png", "image/webp", "image/heic", "image/heif", "image/tiff", "image/tif", "image/gif", "image/bmp", "image/svg+xml", "audio/wav", "audio/x-wav", "audio/mpeg", "audio/mp3", "audio/mp4", "audio/x-m4a", "audio/aac", "audio/flac", "audio/x-flac", "audio/ogg", "audio/opus", "audio/webm", "video/mp4", "video/quicktime", "video/webm", "video/x-matroska" ], "maxSize": 104857600, "description": "The media file blob. Images up to 100MB, audio up to 100MB, video up to 100MB. For PDS-stored compressed versions; original full-res referenced via accessUri." }, "format": { "type": "string", "description": "MIME type of the media file (e.g. image/webp, audio/flac). Should match the blob's actual content type.", "maxGraphemes": 128 }, "caption": { "type": "string", "description": "Human-readable description of the media content.", "maxGraphemes": 1024 }, "creator": { "type": "string", "description": "Name of the person or agent who created the media resource.", "maxGraphemes": 256 }, "siteRef": { "type": "string", "format": "at-uri", "description": "AT-URI of the organization site record where this media was captured." }, "accessUri": { "type": "string", "format": "uri", "description": "URI to the original full-resolution media resource (e.g. S3 URL). The PDS blob is a compressed variant; this points to the archival original.", "maxGraphemes": 2048 }, "createdAt": { "type": "string", "format": "datetime", "description": "Timestamp of record creation in the ATProto PDS." }, "createDate": { "type": "string", "format": "datetime", "description": "Date and time the media resource was originally created (e.g. when the photo was taken)." }, "subjectPart": { "type": "string", "description": "The part of the organism depicted, using TDWG Audubon Core subjectPart controlled values (http://rs.tdwg.org/acpart/values/). Examples: entireOrganism, leaf, bark, flower, fruit, seed, stem, twig, bud, root.", "knownValues": [ "entireOrganism", "leaf", "bark", "flower", "fruit", "seed", "stem", "twig", "bud", "root", "head", "wing", "shell", "unspecifiedPart" ], "maxGraphemes": 128 }, "occurrenceRef": { "type": "string", "format": "at-uri", "description": "AT-URI of the dwc.occurrence record this media is evidence for." }, "subjectPartUri": { "type": "string", "format": "uri", "description": "Full IRI of the subjectPart term from the TDWG controlled vocabulary. Example: http://rs.tdwg.org/acpart/values/p0002 for bark." }, "variantLiteral": { "type": "string", "description": "AC variant describing the quality/size of this service access point. Values: Thumbnail, Lower Quality, Medium Quality, Good Quality, Best Quality, Offline.", "knownValues": [ "Thumbnail", "Lower Quality", "Medium Quality", "Good Quality", "Best Quality", "Offline" ], "maxGraphemes": 64 }, "subjectOrientation": { "type": "string", "description": "Viewing orientation relative to the subject, using TDWG Audubon Core subjectOrientation controlled values. Examples: dorsal, ventral, lateral, anterior, posterior.", "maxGraphemes": 128 } } } } }, "$type": "com.atproto.lexicon.schema", "lexicon": 1, "description": "Audubon Core multimedia resource record. Represents a single media item (image, audio, video, spectrogram) associated with a biodiversity occurrence. Based on the TDWG Audiovisual Core standard (http://www.tdwg.org/standards/638). Each media item is a separate record linked to a dwc.occurrence via occurrenceRef." } ```