@prefix this: <https://w3id.org/np/RA5e-_3FQyBYfGGaHxFp0I3tXyn4oXGAdZvuGeCoXTxMg> .
@prefix sub: <https://w3id.org/np/RA5e-_3FQyBYfGGaHxFp0I3tXyn4oXGAdZvuGeCoXTxMg/> .
@prefix schema: <http://schema.org/> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix orcid: <https://orcid.org/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix fip: <https://w3id.org/fair/fip/terms/> .
@prefix prov: <http://www.w3.org/ns/prov#> .
sub:Head {
   this: np:hasAssertion sub:assertion ;
    np:hasProvenance sub:provenance ;
    np:hasPublicationInfo sub:pubinfo ;
    a np:Nanopublication .
}
sub:assertion {
   <https://doi.org/10.25504/FAIRsharing.EZCpPd> schema:url <https://ddialliance.org/Specification/DDI-Codebook/2.5/> ;
    a fip:Available-FAIR-Enabling-Resource , fip:FAIR-Enabling-Resource , fip:FAIR-Specification , fip:Knowledge-representation-language ;
    rdfs:comment "Data Documentation Initiative (DDI-Codebook, DDI-C) is a more light-weight version of DDI-Lifecycle, intended primarily to document simple survey data. Originally DTD-based, DDI-C is now available as an XML Schema. The freely available international DDI standards describe data that result from observational methods in the social, behavioral, economic, and health sciences. DDI is used to document data in over 80 countries of the world." ;
    rdfs:label "Data Documentation Initiative Codebook | DDI-Codebook" ;
    rdfs:seeAlso <https://doi.org/10.25504/FAIRsharing.EZCpPd> .
}
sub:provenance {
   sub:assertion dct:creator orcid:0000-0001-6899-760X ;
    prov:wasDerivedFrom <https://doi.org/10.25504/FAIRsharing.EZCpPd> .
}
sub:pubinfo {
   this: dct:created "2026-03-23T15:43:30Z"^^xsd:dateTime ;
    dct:creator <https://fip.fair-wizard.com/wizard> ;
    dct:license <https://creativecommons.org/publicdomain/zero/1.0/> ;
    npx:describes <https://doi.org/10.25504/FAIRsharing.EZCpPd> ;
    prov:wasDerivedFrom <https://w3id.org/fip/wizard/0039b6b3-1148-44d5-80fc-d9ad91935e15> .
  sub:sig npx:hasAlgorithm "RSA" ;
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB" ;
    npx:hasSignature "lIVmfqY+9FdRgC1+8P6cpzDAj7J7vtDppAlwXSorOuOsJxD93tpHFaZsaq8znARNvnNluQluEvbyegvA2xqGU53IjX+UWw3ZupTsr+YY66evkWTr5nTuE63Kobr6TwfHrsG51QFz4UlUSLctou04AA4RG5+twdLF/AMvYAj4ar4=" ;
    npx:hasSignatureTarget this: .
}