English operator: Panoramio described at URL: https://web.archive.org/web/20161027165824/http://www.panoramio.com/photo/94657637 determination method...
operator: Panoramio described at URL: https://web.archive.org/web/20161030063914/http://www.panoramio.com/photo/94657473 determination method: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161029163637/http://www.panoramio.com/photo/94657385 determination method or standard: SHA-1...