{
	"$schema": "https://json-schema.org/draft/2020-12/schema",
	"$id": "https://schema.twindev.org/dataspace-protocol/DataspaceProtocolDistributionBase",
	"title": "DataspaceProtocolDistributionBase",
	"description": "Base distribution interface compliant with Eclipse Data Space Protocol, requiring a format and accessService.",
	"type": "object",
	"properties": {
		"@type": {
			"const": "Distribution",
			"description": "The type identifier for the Distribution.\nREQUIRED per Eclipse Data Space Protocol."
		},
		"@id": {
			"type": "string",
			"description": "Unique identifier for the distribution; optional for embedded distributions."
		},
		"hasPolicy": {
			"type": "array",
			"items": {
				"$ref": "https://schema.twindev.org/dataspace-protocol/DataspaceProtocolOfferBase"
			},
			"description": "Optional array of ODRL offers; when present, must contain at least one entry.",
			"minItems": 1
		},
		"accessService": {
			"anyOf": [
				{
					"type": "string"
				},
				{
					"$ref": "https://schema.twindev.org/dataspace-protocol/DataspaceProtocolDataServiceBase"
				}
			],
			"description": "Access service URI or inline access service definition."
		},
		"format": {
			"type": "string",
			"description": "Distribution format identifier."
		}
	},
	"required": ["@type", "accessService", "format"],
	"allOf": [
		{
			"description": "Base interface for DCAT Distribution without JSON-LD context.\nThis is the context-free variant of IDcatDistribution, intended for embedding\ndistribution objects inline within datasets where the context is provided by the enclosing document.",
			"type": "object",
			"properties": {
				"@id": {
					"type": "string",
					"description": "The unique identifier for the distribution object."
				},
				"dcterms:title": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A name given to the distribution."
				},
				"dcterms:description": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A free-text account of the distribution."
				},
				"dcterms:issued": {
					"type": "string",
					"description": "Date of formal issuance of the distribution.",
					"format": "date-time"
				},
				"dcterms:modified": {
					"type": "string",
					"description": "Most recent date on which the distribution was changed, updated or modified.",
					"format": "date-time"
				},
				"dcterms:license": {
					"type": "string",
					"description": "A legal document under which the distribution is made available."
				},
				"dcterms:accessRights": {
					"type": "string",
					"description": "Information about who can access the distribution."
				},
				"dcterms:rights": {
					"type": "string",
					"description": "Information about rights held in and over the distribution."
				},
				"dcat:accessURL": {
					"type": "string",
					"description": "A URL of the resource that gives access to a distribution of the dataset."
				},
				"dcat:accessService": {
					"type": "string",
					"description": "A data service that gives access to the distribution."
				},
				"dcat:downloadURL": {
					"type": "string",
					"description": "The URL of the downloadable file in a given format."
				},
				"dcat:byteSize": {
					"type": "number",
					"description": "The size of the distribution in bytes.",
					"minimum": 0
				},
				"dcat:spatialResolutionInMeters": {
					"type": "number",
					"description": "The minimum spatial separation resolvable in a distribution, measured in meters."
				},
				"dcat:temporalResolution": {
					"type": "string",
					"description": "Minimum time period resolvable in the distribution.",
					"format": "duration"
				},
				"dcterms:conformsTo": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "An established standard to which the distribution conforms."
				},
				"dcat:mediaType": {
					"type": "string",
					"description": "The media type of the distribution as defined by IANA."
				},
				"dcat:compressFormat": {
					"type": "string",
					"description": "The compression format of the distribution."
				},
				"dcat:packageFormat": {
					"type": "string",
					"description": "The package format of the distribution."
				},
				"spdx:checksum": {
					"type": "string",
					"description": "The checksum property provides a mechanism to verify the data integrity."
				}
			},
			"$comment": "Inlined utility base type DcatDistributionBase so utility transformations can operate on concrete properties instead of a $ref."
		}
	]
}