Panoramio described at URL: https://web.archive.org/web/20161024040507/http://www.panoramio.com/photo/68548249 determination method or standard: SHA-1...
operator: Panoramio described at URL: https://web.archive.org/web/20161019174759/http://www.panoramio.com/photo/61276121 determination method: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161016232552/http://www.panoramio.com/photo/40482299 determination method or standard: SHA-1...
English operator: Panoramio described at URL: https://web.archive.org/web/20161027110649/http://www.panoramio.com/photo/86125762 determination method...