@prefix this: <http://purl.org/np/RASnvDwtq8JmeeC7s5yNBHNk3-EPwJFyy2OTscRTZ3NL4> .
@prefix sub: <http://purl.org/np/RASnvDwtq8JmeeC7s5yNBHNk3-EPwJFyy2OTscRTZ3NL4#> .
@prefix bs: <https://bioschemas.org/profiles/LabProtocol/0.4-DRAFT-2020_07_23/#> .
@prefix np: <http://www.nanopub.org/nschema#> .
@prefix pav: <http://purl.org/pav/> .
@prefix authority: <https://hypothes.is/a/> .
@prefix npx: <http://purl.org/nanopub/x/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix p-plan: <http://purl.org/net/p-plan#> .
@prefix prov: <http://www.w3.org/ns/prov#> .
@prefix sp: <http://purl.org/net/SMARTprotocol#> .
@prefix dc: <http://purl.org/dc/elements/1.1/> .

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

sub:assertion {
  sp:CentrifugeTube rdfs:label "15 ml centrifuge tube." .
  
  sub:_1 rdfs:label "Ficoll Histopaque" .
  
  sub:step dc:description "Take 4 ml of Ficoll Histopaque in a 15 ml centrifuge tube.";
    a p-plan:Step;
    bs:labEquipmentUsed sp:CentrifugeTube;
    bs:reagentUsed sub:_1 .
}

sub:provenance {
  sub:assertion pav:createdWith <https://nanotate.bitsfetch.com>;
    prov:generatedAtTime "2021-03-04T15:11:43.339940"^^xsd:dateTime;
    prov:wasAttributedTo <https://hypothes.is/users/iannotate> .
}

sub:pubInfo {
  sub:assertion prov:wasDerivedFrom authority:i5NdiH0iEeuWpystRQRQoQ, authority:m7JCiH0iEeu-1K91YK4zyg,
      authority:tcs1sn0iEeucnYN7UWDXRw .
  
  sub:sig npx:hasAlgorithm "RSA";
    npx:hasPublicKey "MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCEOtYac15zsWN/LAu3q7YFdW0UZNfX3BAarHW/LB1DHGcz0yYr0v7hKGbnCLJ+UkDfu3Mgj7BnCm1s8ulMULKfF4YjqS2YKHYZjNKVaIjSigFOpjOwIx99+qPlvd5CuG+Gia/sJA05jy2bPKLwb/kmVeeX0zORZudWLyRMLXp8UQIDAQAB";
    npx:hasSignature "I2fqt4uPs1brGWuZ6gw1GiucmdMTCImgkIPdzU6fj29CFHwEMDP+Tfc8B7bqTxKwt286vPepg7046Kj/YxnQ5pF8uVn0Rb3mX4BBNTy0LmNyW5WqUzk8tmpadvnKUEzTHCrHcSCGyR2Zfjpnc1tMjzoEzHFDAFIagfCje7xpSts=";
    npx:hasSignatureTarget this: .
  
  this: npx:introduces sub:step;
    prov:generatedAtTime "2021-03-04T15:11:43.339940"^^xsd:dateTime;
    prov:wasAttributedTo <https://hypothes.is/users/iannotate> .
}