Panoramio described at URL: https://web.archive.org/web/20161025191836/http://www.panoramio.com/photo/83561359 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161025191734/http://www.panoramio.com/photo/83561353 determination method or standard: SHA-1...