@prefix this: . @prefix sub: . @prefix np: . @prefix dct: . @prefix nt: . @prefix npx: . @prefix xsd: . @prefix rdfs: . @prefix orcid: . @prefix ns1: . @prefix prov: . @prefix foaf: . sub:Head { this: np:hasAssertion sub:assertion; np:hasProvenance sub:provenance; np:hasPublicationInfo sub:pubinfo; a np:Nanopublication . } sub:assertion { dct:description "the process of artificially adding a substance, such as a contaminant, to a soil sample."; a , ; rdfs:label "Soil spiking (bulk soil)"; sub:PlantsEndpoints; sub:SoilSpiking . } sub:provenance { sub:assertion prov:wasAttributedTo orcid:0009-0002-2913-1293 . } sub:pubinfo { orcid:0009-0002-2913-1293 foaf:name "Christos Vasileiou" . this: dct:created "2026-01-19T14:24:42.467Z"^^xsd:dateTime; dct:creator orcid:0009-0002-2913-1293; dct:license ; npx:introduces ; npx:wasCreatedAt ; nt:wasCreatedFromProvenanceTemplate ns1:RANwQa4ICWS5SOjw7gp99nBpXBasapwtZF1fIM3H2gYTM; nt:wasCreatedFromPubinfoTemplate , ; nt:wasCreatedFromTemplate . sub:sig npx:hasAlgorithm "RSA"; npx:hasPublicKey "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAz1OobdRASd9SftHrLhG905OXjv8DHndvyWzXRJ5EDFPankMSnHZPHK+g2qEeRWdonstt55CLrpTpWsVv9xRtTqPidXHbnWLBXX42iCB+EnZNoKqAVKF5GxkSR38S0uTTq3aeQJbw2kTpx6LMkspmuH95fgAI/lfqPWrxdlI98jIeHQ14UXZpiWmkkvPgC9GVgmwHiG1hB/NCA2fKCOxVodN44OfhAPtkWmPJ40IcGPSalI4HRqgLLI5PabdRk3PiG81cUngmQU1Xk6EapzkRJGenkOlGsC5L4ktEPO6LS9uBMLTMLQDtGtkrcwqg5HmeKv7Ili3vgr3LL8/GaBBOLQIDAQAB"; npx:hasSignature "yl2NroBThwEw5MBA8wiXS6MY22igfQJD0EqfHsVYJxlPjDD9ajxdIx17ag5Wwuus9QBWtBxtlXbrGouxPRqg9hmOiHSZz11aW1uYoXDWuyO7WDDtAGY47I88N9j+3P6/tOUgB53xx0e+cRcFZrQQpeUNiEvsv9wKbi5L0OVqXhmKC+fy1zLO0I0QmEsQi4/zY38ROggAmPHaxnRq+w0Y3sO535tlBt5G5jowbYZFjYi5UnzkaF1UC7wOOWq8UtYy7h8ZkngZxEuYX43sbJ+OYLDEsRCWTE1TNCH/yWAyYmWq4k9hLLMWY4NaU8Khj+ochdC1i7VLKJU+1QhRSr5etA=="; npx:hasSignatureTarget this:; npx:signedBy orcid:0009-0002-2913-1293 . }