About: http://webisa.webdatacommons.org/416382771

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	So, a tag is a copy you do not commit to, and a branch is a copy you commit to.
http://www.w3.org/ns/prov#wasQuotedFrom	slashdot.org