If they are suitably random then this scheme seems to check out, but you're going to need some barbed wire and some inspiration from these https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warnin... on anything that can generate v7 IDs.
If they are suitably random then this scheme seems to check out, but you're going to need some barbed wire and some inspiration from these https://en.wikipedia.org/wiki/Long-term_nuclear_waste_warnin... on anything that can generate v7 IDs.