Panoramio described at URL: https://web.archive.org/web/20161102150723/http://www.panoramio.com/photo/121418951 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161030084638/http://www.panoramio.com/photo/107366018 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161101204013/http://www.panoramio.com/photo/119890674 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161101200656/http://www.panoramio.com/photo/121419531 determination method or standard: SHA-1...