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You may also be interested in: https://en.wikipedia.org/wiki/EURion_constellation https://en.wikipedia.org/wiki/EURion_constellation
by 29athrowaway 2y ago
You may also be interested in: https://en.wikipedia.org/wiki/EURion_constellation https://en.wikipedia.org/wiki/EURion_constellation
- tgsovlerkhgsel 2y agoAnd 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/ http://www.cl.cam.ac.uk/users/sjm217/projects/currency/