About: http://webisa.webdatacommons.org/275880796

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	I agree that locking would solve the problem, except for when the server is also clustered.
http://www.w3.org/ns/prov#wasQuotedFrom	stackoverflow.com