The World Intellectual Property Organization today launched a new online business service, WIPO PROOF, that provides tamper-proof evidence of the existence at a point in time of any digital file, including data sets, in any format.

WIPO PROOF rapidly generates evidence proving that a digital file existed at a specific point in time, and that it has not been altered since that time. The service creates a WIPO PROOF token, a date- and time-stamped digital fingerprint of the file or data, which can be used as evidence in a legal dispute. 

Tokens attract a moderate cost (CHF 20 per token, or less if bought in bulk), and can be verified by anyone at no cost.