If this is off topic, please change it to world-building.
Is it possible to make a low cost heliography telescope, which is not digital, and which can be used to generate an worldwide numerical fingerprint using sun spot positions as a mathematical code?
Every city in the world would have the same heliograph. Nearly all the sunlit heliographs of the world would agree what the sunspot fingerprint code is. The sun generated code would then decide who's turn it is to record financial verification tasks, government accounts, and other corruption issues.
Would other cosmic signals be more practical to graph and suited to that end?
Does the sun change too slowly to be useful for generate a daily random code? what about weekly?
Do you have any tips of how to design a simple analogue heliograph that converts sunspots into random numerical code, (i.e. to make a crypto currency called Sun-Peso/ to decide an olympic host country)?