4 ms·
Not familiar with the patent system, but this looks like HashCash https://en.m.wikipedia.org/wiki/Hashcash https://en.m.wikipedia.org/wiki/Hashcash
by z573 6y ago
Not familiar with the patent system, but this looks like HashCash https://en.m.wikipedia.org/wiki/Hashcash https://en.m.wikipedia.org/wiki/Hashcash