3 ms·
That would certainly demonstrate that the keys were brought geographically near each other for some amount of time, which is interesting, but of what use would
by CobrastanJorji 8y ago
That would certainly demonstrate that the keys were brought geographically near each other for some amount of time, which is interesting, but of what use would it be? It can't usefully test where I am, just my key. I can rent a cloud machine anywhere in the world for 15 minutes and put my key there temporarily.
- JoshuaDavid 8y agoIf you had a way of projecting a pattern onto a surface you are taking a picture of, you could receive a hash, project that out onto whatever surface, take a picture, and send back the signed hash of the picture you just took, thus proving that a particular picture was taken in a particular place. If that picture is of you, you can thus prove that you were in a particular place at a particular time.
- pontifier 8y agophotographic proofs are not trustworthy... even with projections. https://youtu.be/p5_tpq5ejFQ https://youtu.be/p5_tpq5ejFQ