publishdate (references)

Nanopublication	Part	Subject	Predicate	Object	Published By	Published On
http://purl.org/np/RA4bMi0lyc... RA4bMi0lyc	links a nanopublication to its assertion http://www.nanopub.org/nschema#hasAssertion assertion	publishdate	http://www.w3.org/1999/02/22-rdf-syntax-ns#type type	https://w3id.org/np/o/ntemplate/LiteralPlaceholder LiteralPlaceholder	Chang Sun	2020-04-16T22:00:44.817Z
http://purl.org/np/RA4bMi0lyc... RA4bMi0lyc	links a nanopublication to its assertion http://www.nanopub.org/nschema#hasAssertion assertion	publishdate	http://www.w3.org/2000/01/rdf-schema#label label	add the publish date of the publication here (dd-mm-yyyy)	Chang Sun	2020-04-16T22:00:44.817Z
http://purl.org/np/RA4bMi0lyc... RA4bMi0lyc	links a nanopublication to its assertion http://www.nanopub.org/nschema#hasAssertion assertion	http://purl.org/np/RA4bMi0lyc...#st5 st5	http://www.w3.org/1999/02/22-rdf-syntax-ns#object object	publishdate	Chang Sun	2020-04-16T22:00:44.817Z