The traceability of a mixture is the auditable route by which standard can be compared back to an International absolute standard. Proton has the ability to provide complete information about every step involved in or relevant to arriving at measurement result, by documented records by the way of administrative traceability. Also we have the access and ability to prove the validity of individual measurement results by complete reduction, for example property values realized by measurement standards or reference materials or to accepted values of physical constants which we call definitive traceability. In short administrative traceability takes care of documentation and definitive traceability take care of accuracy.