@prefix this: . @prefix sub: . @prefix schema: . @prefix np: . @prefix dct: . @prefix npx: . @prefix freq: . @prefix xsd: . @prefix orcid: . @prefix rdfs: . @prefix dcat: . @prefix fip: . @prefix prov: . sub:Head { this: np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo; a np:Nanopublication . } sub:assertion { a freq:Digital-Object-Analysis; rdfs:comment "To describe the emission strength of marine primary organic matter from the ocean, a monthly varying climatology of upper-ocean chlorophyl-a concentration is used."; rdfs:label "F2A-CS1-DOA8 | Upper-ocean POM concentrations"; schema:url ; fip:has-description-source ; freq:digital-object-type ; dcat:contactPoint orcid:0000-0001-5441-4063 . } sub:provenance { sub:assertion dct:creator orcid:0000-0001-8784-9100 . } sub:pubinfo { this: dct:created "2025-12-28T21:16:15Z"^^xsd:dateTime; dct:creator ; dct:license ; npx:introduces ; npx:supersedes ; prov:wasDerivedFrom . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCoKFb7LKlXyBB7BUvjFF9bDJNk0WxH3Xerr4H3v/VCiRVshEDl3BZVekbMMmdRe+TOPyc8AOLd9IAL2VfVVD/T0rmCHk7Pw7DQjI96mwyeXhE7f4g0WG5UT5Pxxm0Rzy7IrYnEaaVDs7dkZUt952M6qWlHfTwCQDcXJhZfLiXoMwIDAQAB"; npx:hasSignature "mlnmawbXZNAPznRGBDzkhrxczwC/wux077NiAGg+yqxkDiXV+zTQSfeOCaW1A5+qPHSCMKtJQ3DE/OYD27QIJL2eQ849fwb80g68Kixwq85jRZuiwt0HFfskbOg6kDTy93kCG9pqco3yX1VCnCoJL/8amyqQz4FHZ26H1RB2PQw="; npx:hasSignatureTarget this: . }