Panoramio described at URL: https://web.archive.org/web/20161114002345/http://www.panoramio.com/photo/42103044 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161016175926/http://www.panoramio.com/photo/42104003 determination method or standard: SHA-1...