@prefix this: <https://purl.org/fair-metrics/FM_F1B#nanopub.RAoVkOYeyfFzQeN8SvIavD4YATjuwufabc7jHrChqR7Z0> .
@prefix sub: <https://purl.org/fair-metrics/FM_F1B#nanopub.RAoVkOYeyfFzQeN8SvIavD4YATjuwufabc7jHrChqR7Z0.> .
@prefix metrics: <https://purl.org/fair-metrics/> .
@prefix dcterms: <http://purl.org/dc/terms/> .
@prefix dcelem: <http://purl.org/dc/elements/1.1/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix pav: <http://swan.mindinformatics.org/ontologies/1.2/pav/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix fair: <http://purl.org/fair-ontology#> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix fm: <https://purl.org/fair-metrics/terms/> .

sub:Head {
  this: np:hasAssertion sub:assertion ;
    np:hasProvenance sub:provenance ;
    np:hasPublicationInfo sub:pubinfo ;
    a np:Nanopublication .

sub:assertion {
  metrics:FM_F1B a fair:FAIR-Metric ;
    foaf:primaryTopic fair:F1 .

sub:provenance {
  sub:_1 dcelem:format "application/x-texinfo" ;
    a <http://rdfs.org/ns/void#Dataset> , dcat:Distribution ;
    dcat:downloadURL <https://raw.githubusercontent.com/FAIRMetrics/Metrics/master/Distributions/FM_F1B.tex> .
  sub:_2 dcelem:format "application/pdf" ;
    a <http://rdfs.org/ns/void#Dataset> , dcat:Distribution ;
    dcat:downloadURL <https://raw.githubusercontent.com/FAIRMetrics/Metrics/master/Distributions/FM_F1B.pdf> .
  sub:assertion dcterms:author "Erik Schultes" , "Luiz Bonino" , "Mark Wilkinson" , "Michel Dumontier" , "Peter Doorn" , "Susanna Sansone" ;
    dcterms:title "Identifier persistence" ;
    rdfs:comment "FAIR Metric for Fair Principle F1" ;
    dcat:distribution sub:_1 , sub:_2 ;
    prov:wasGeneratedBy "FAIR Metrics Working Group" ;
    fm:comments """A first version of this metric would focus on just checking a URL that resolves to a document. We can't verify that document.
A second version would indicate how to structure the data policy document with a particular section (similar to how the CC licenses now have a formal structure in RDF).
A third version would insist that that document and section is signed by an approved organization and made available in an appropriate repository.""" ;
    fm:examples """for each of the 'canonical' data types, examples, if available.

FAIR principles (scholarly publication in Nature Scientific Data)

FAIR Principles (computable representation): 
For DSA-certified repositories (example below of 3TU-Datacentre at Delft) the identifier persistence policy is described in the self assessment:

DOI Handbook - ensuring persistence:
\\verb|6_Policies.html#6.5}|""" ;
    fm:measuring "Whether there is a policy that describes what the provider will do in the event an identifier scheme becomes deprecated." ;
    fm:procedure "Use an HTTP GET on URL provided." ;
    fm:rationale "The change to an identifier scheme will have widespread implications for resource lookup, linking, and data sharing. Providers of digital resources must ensure that they have a policy to manage changes in their identifier scheme, with a specific emphasis on maintaining/redirecting previously generated identifiers." ;
    fm:relevance "All" ;
    fm:requirements "A URL that resolves to a document containing the relevant policy." ;
    fm:validation "Present (a 200,202,203 or 206 HTTP response after resolving all and any prior redirects. e.g. 301 -> 302 -> 200 OK) or Absent (any other HTTP code)" .

sub:pubinfo {
  this: dcterms:created "2017-11-20T00:00:00.0Z"^^xsd:dateTime ;
    dcterms:rights <https://creativecommons.org/publicdomain/zero/1.0> ;
    dcterms:rightsHolder <http://go-fair.org> ;
    pav:authoredBy "Mark Wilkinson" , <https://orcid.org/0000-0001-6960-357X> ;
    pav:versionNumber "1" .