{
	"$schema": "https://json-schema.org/draft/2020-12/schema",
	"$id": "https://schema.twindev.org/dataspace-protocol/DataspaceProtocolDatasetBase",
	"title": "DataspaceProtocolDatasetBase",
	"description": "Base dataset interface compliant with Eclipse Data Space Protocol, requiring an id, hasPolicy, and distribution.",
	"type": "object",
	"properties": {
		"@type": {
			"const": "Dataset",
			"description": "The type identifier for the dataset.\nREQUIRED per Eclipse Data Space Protocol."
		},
		"@id": {
			"type": "string",
			"description": "Unique identifier for the dataset.\nREQUIRED per Eclipse Data Space Protocol."
		},
		"hasPolicy": {
			"type": "array",
			"items": {
				"$ref": "https://schema.twindev.org/dataspace-protocol/DataspaceProtocolOfferBase"
			},
			"description": "Array of ODRL offers; must contain at least one entry.",
			"minItems": 1
		},
		"distribution": {
			"type": "array",
			"items": {
				"$ref": "https://schema.twindev.org/dataspace-protocol/DataspaceProtocolDistributionBase"
			},
			"description": "Distributions of this dataset; must contain at least one entry.",
			"minItems": 1
		}
	},
	"required": ["@type", "@id", "hasPolicy", "distribution"],
	"allOf": [
		{
			"description": "Base interface for DCAT Dataset without JSON-LD context.\nThis is the context-free variant of IDcatDataset, intended for embedding\ndataset objects inline within other objects where the context is provided by the enclosing document.",
			"type": "object",
			"properties": {
				"@id": {
					"type": "string",
					"description": "The unique identifier for the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:title": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A name given to the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:description": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A free-text account of the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:identifier": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A unique identifier of the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:issued": {
					"type": "string",
					"description": "Date of formal issuance (publication) of the resource.",
					"format": "date-time",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:modified": {
					"type": "string",
					"description": "Most recent date on which the resource was changed, updated or modified.",
					"format": "date-time",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:language": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A language of the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:publisher": {
					"anyOf": [
						{
							"description": "A FOAF Agent.",
							"type": "object",
							"properties": {
								"@context": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafContextType",
									"description": "The LD Context.",
									"$comment": "Inherited from FoafAgent"
								},
								"@id": {
									"type": "string",
									"description": "The unique identifier for the FOAF object.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:name": {
									"type": "string",
									"description": "A name for some thing.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:title": {
									"type": "string",
									"description": "Title (Mr, Mrs, Ms, Dr. etc)",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:mbox": {
									"type": "string",
									"description": "A personal mailbox, ie. an Internet mailbox associated with exactly one owner, the first owner of this mailbox",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:homepage": {
									"type": "string",
									"description": "A homepage for some thing.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:depiction": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafImage",
									"description": "A depiction of some thing.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"@type": {
									"anyOf": [
										{
											"const": "Agent"
										},
										{
											"const": "Person"
										},
										{
											"const": "Organization"
										},
										{
											"const": "Group"
										},
										{
											"type": "string"
										}
									],
									"description": "Type.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:age": {
									"type": "number",
									"description": "The age in years of some agent.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:made": {
									"anyOf": [
										{
											"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
										},
										{
											"type": "array",
											"items": {
												"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
											}
										}
									],
									"description": "Something that was made by this agent.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:weblog": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafDocument",
									"description": "A weblog of some thing (whether person, group, company etc.).",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:openid": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafDocument",
									"description": "An OpenID for an agent.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:interest": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafDocument",
									"description": "A page about a topic of interest to this person.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:topic_interest": {
									"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject",
									"description": "A thing of interest to this person.",
									"$comment": "Inherited from FoafAgent"
								}
							},
							"required": ["@type"],
							"$comment": "Inlined utility base type FoafAgent so utility transformations can operate on concrete properties instead of a $ref."
						},
						{
							"type": "string"
						}
					],
					"description": "An entity responsible for making the resource available.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:creator": {
					"anyOf": [
						{
							"description": "A FOAF Agent.",
							"type": "object",
							"properties": {
								"@context": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafContextType",
									"description": "The LD Context.",
									"$comment": "Inherited from FoafAgent"
								},
								"@id": {
									"type": "string",
									"description": "The unique identifier for the FOAF object.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:name": {
									"type": "string",
									"description": "A name for some thing.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:title": {
									"type": "string",
									"description": "Title (Mr, Mrs, Ms, Dr. etc)",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:mbox": {
									"type": "string",
									"description": "A personal mailbox, ie. an Internet mailbox associated with exactly one owner, the first owner of this mailbox",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:homepage": {
									"type": "string",
									"description": "A homepage for some thing.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"foaf:depiction": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafImage",
									"description": "A depiction of some thing.",
									"$comment": "Inherited from FoafBaseObject"
								},
								"@type": {
									"anyOf": [
										{
											"const": "Agent"
										},
										{
											"const": "Person"
										},
										{
											"const": "Organization"
										},
										{
											"const": "Group"
										},
										{
											"type": "string"
										}
									],
									"description": "Type.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:age": {
									"type": "number",
									"description": "The age in years of some agent.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:made": {
									"anyOf": [
										{
											"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
										},
										{
											"type": "array",
											"items": {
												"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
											}
										}
									],
									"description": "Something that was made by this agent.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:weblog": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafDocument",
									"description": "A weblog of some thing (whether person, group, company etc.).",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:openid": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafDocument",
									"description": "An OpenID for an agent.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:interest": {
									"$ref": "https://schema.twindev.org/dataspace-protocol/FoafDocument",
									"description": "A page about a topic of interest to this person.",
									"$comment": "Inherited from FoafAgent"
								},
								"foaf:topic_interest": {
									"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject",
									"description": "A thing of interest to this person.",
									"$comment": "Inherited from FoafAgent"
								}
							},
							"required": ["@type"],
							"$comment": "Inlined utility base type FoafAgent so utility transformations can operate on concrete properties instead of a $ref."
						},
						{
							"type": "string"
						}
					],
					"description": "An entity responsible for producing the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:accessRights": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
						},
						{
							"type": "string"
						}
					],
					"description": "Information about who can access the resource or an indication of its security status.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:license": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
						},
						{
							"type": "string"
						}
					],
					"description": "A legal document under which the resource is made available.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:rights": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
						},
						{
							"type": "string"
						}
					],
					"description": "Information about rights held in and over the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:conformsTo": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "An established standard to which the resource conforms.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:type": {
					"type": "string",
					"description": "The nature or genre of the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcat:contactPoint": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
						},
						{
							"type": "string"
						}
					],
					"description": "Relevant contact information for the catalogued resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcat:keyword": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A keyword or tag describing the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcat:theme": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A main category of the resource. A resource can have multiple themes.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcat:landingPage": {
					"anyOf": [
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "A Web page that can be navigated to gain access to the resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcat:qualifiedRelation": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/dataspace-protocol/DcatRelationship"
						},
						{
							"type": "string"
						}
					],
					"description": "Link to a description of a relationship with another resource.",
					"$comment": "Inherited from DcatResourceBase"
				},
				"dcterms:accrualPeriodicity": {
					"type": "string",
					"description": "The frequency at which the dataset is published.",
					"$comment": "Inherited from DcatDatasetBase"
				},
				"dcat:inSeries": {
					"type": "string",
					"description": "A dataset series of which the dataset is part.",
					"$comment": "Inherited from DcatDatasetBase"
				},
				"dcterms:spatial": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
						},
						{
							"type": "string"
						},
						{
							"type": "array",
							"items": {
								"type": "string"
							}
						}
					],
					"description": "The geographical area covered by the dataset.",
					"$comment": "Inherited from DcatDatasetBase"
				},
				"dcat:spatialResolutionInMeters": {
					"type": "number",
					"description": "Minimum spatial separation resolvable in a dataset, measured in meters.",
					"$comment": "Inherited from DcatDatasetBase"
				},
				"dcterms:temporal": {
					"$ref": "https://schema.twindev.org/dataspace-protocol/DublinCorePeriodOfTime",
					"description": "The temporal period that the dataset covers.",
					"$comment": "Inherited from DcatDatasetBase"
				},
				"dcat:temporalResolution": {
					"type": "string",
					"description": "Minimum time period resolvable in the dataset.",
					"format": "duration",
					"$comment": "Inherited from DcatDatasetBase"
				},
				"prov:wasGeneratedBy": {
					"anyOf": [
						{
							"$ref": "https://schema.twindev.org/json-ld/JsonLdNodeObject"
						},
						{
							"type": "string"
						}
					],
					"description": "An activity that generated, or provides the business context for, the creation of the dataset.",
					"$comment": "Inherited from DcatDatasetBase"
				}
			},
			"$comment": "Inlined utility base type DcatDatasetBase so utility transformations can operate on concrete properties instead of a $ref."
		}
	]
}