About: http://webisa.webdatacommons.org/250258936

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	by David Off (101038) writes: I would go with 30 years except for the case where someone is profiting from your work (e.g. selling it in either digital or hardcopy form).
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org