About: http://webisa.webdatacommons.org/115990858

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	It seems to me that barcodes such as QR codes would be a natural way to transfer numbers between two devices in person.
http://www.w3.org/ns/prov#wasQuotedFrom	bitcointalk.org