Panoramio described at URL: https://web.archive.org/web/20161028162704/http://www.panoramio.com/photo/93149754 determination method or standard: SHA-1...
archive.org/web/20161030102824/http://www.panoramio.com/user/1370106?with_photo_id=93175295 heading: 90 degree determination method or standard: SHA-1...
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