Panoramio described at URL: https://web.archive.org/web/20161015001149/http://www.panoramio.com/photo/39146053 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161020041726/http://www.panoramio.com/photo/55566704 determination method or standard: SHA-1...