Panoramio described at URL: https://web.archive.org/web/20161101142956/http://www.panoramio.com/photo/129687639 determination method or standard: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161030130158/http://www.panoramio.com/photo/102898843 determination method or standard: SHA-1...