Panoramio described at URL: https://web.archive.org/web/20161029161824/http://www.panoramio.com/photo/99735085 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161028110837/http://www.panoramio.com/photo/99735040 determination method or standard: SHA-1...