About: http://webisa.webdatacommons.org/137084208

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	In computer science, a heartbeat is a periodic signal generated by hardware or software to indicate normal operation
http://www.w3.org/ns/prov#wasQuotedFrom	edwardbetts.com