English operator: Panoramio described at URL: https://web.archive.org/web/20161016161124/http://www.panoramio.com/photo/42986593...
English operator: Panoramio described at URL: https://web.archive.org/web/20161028072839/http://www.panoramio.com/photo/104771533...
operator: Panoramio described at URL: https://web.archive.org/web/20161030184224/http://www.panoramio.com/photo/118656915 determination method: SHA-1...
Panoramio described at URL: https://web.archive.org/web/20161012094431/http://www.panoramio.com/photo/13869568 determination method or standard: SHA-1...