← Back to context Comment by 29athrowaway 2 days ago You may also be interested in: https://en.wikipedia.org/wiki/EURion_constellation 1 comment 29athrowaway Reply tgsovlerkhgsel 2 days ago And the lesser known, newer, invisible, digital watermark based version of it. Unfortunately very little information is available about that one. http://www.cl.cam.ac.uk/users/sjm217/projects/currency/
tgsovlerkhgsel 2 days ago And the lesser known, newer, invisible, digital watermark based version of it. Unfortunately very little information is available about that one. http://www.cl.cam.ac.uk/users/sjm217/projects/currency/
And the lesser known, newer, invisible, digital watermark based version of it. Unfortunately very little information is available about that one. http://www.cl.cam.ac.uk/users/sjm217/projects/currency/