Instance¶

An instance is one specific materialization or version of the result. For example, you can have one result with three instances as result of deduplication:

• one is the pre-print
• one is the post-print
• one is the published version

Each instance is characterized by the properties described in the following table.

field name	cardinality	type	description
accessright	ONE	AccessRight	Maps dc:rights, describes the access rights of the web resources relative to this instance.
alternateIdentifier	MANY	AlternateIdentifier	All the identifiers associated to the result other than the authoritative ones
articleprocessingcharge	ONE	APC	The money spent to make this book or article available in Open Access. Source for this information is the OpenAPC initiative.
license	ONE	string	License URL
pid	MANY	ResultPid	The set of persistent identifiers associated to this instance that have been collected from an authority for the pid type (i.e. Crossref/Datacite for doi). See OpenAIRE_entity_identifier_and_PID_mapping_policy for more information.
publicationdate	ONE	string	Date of the research product
refereed	ONE	string	describes if this instance has been peer-reviewed or not. Allowed values are peerReviewed, nonPeerReviewed, UNKNOWN (as defined in https://api.openaire.eu/vocabularies/dnet:review_levels with synonoums of peer_review:: https://api.openaire.eu/vocabularies/dnet:review_levels/0001 ). please see below section refereed
type	ONE	string	The specific sub-type of this instance (see https://api.openaire.eu/vocabularies/dnet:result_typologies following the links)
url	MANY	string	URLs to the instance. They may link to the actual full-text or to the landing page at the hosting source.

Example data :

{
    "accessright":{
        "code":"c_abf2",
        "label":"OPEN",
        "openAccessRoute":"gold" 
        "scheme":"http://vocabularies.coar-repositories.org/documentation/access_rights/" 
    },
    "alternateIdentifier":[],
    "license":"http://creativecommons.org/licenses/by-nc/4.0",
    "pid":[],
    "publicationdate":"2009-02-12",
    "refereed":"UNKNOWN",
    "type":"Article",
    "url":["https://periodicos2.uesb.br/index.php/folio/article/view/4296"]
}

refereed¶

• peerReviewed:: https://api.openaire.eu/vocabularies/dnet:review_levels/0001
• nonPeerReviewed:: https://api.openaire.eu/vocabularies/dnet:review_levels/0002

base on guidelines covers the vocabularies

• DRIVE guidelines 2.0 - info:eu-repo/semantic (OpenAIRE v1.0 till v3.0 - Literature)
• COAR Vocabulary v2.0 and v3.0 (OpenAIRE v4 - Inst.+Them.)

Notes/Comments¶

• 2021-12-15 ACz, do we have a field ''articleprocessingcharge'' or ''processingcharge'' ? The resourceType give the information about the type like ''article'' or ''book...'' . Further reading, D6.4 – Monitoring OA transformation with APC data analysis final report