English operator: Panoramio described at URL: https://web.archive.org/web/20161025034657/http://www.panoramio.com/photo/77194142...
panoramio.com/user/77598?with_photo_id=480494 operator: Panoramio described at URL: https://web.archive.org/web/20161010022836/http://www.panoramio.com/photo/480494...
English operator: Panoramio described at URL: https://web.archive.org/web/20161025000905/http://www.panoramio.com/photo/77194287 determination method...
Panoramio described at URL: https://web.archive.org/web/20161020093504/http://www.panoramio.com/photo/62271180 determination method or standard: SHA-1...
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