This is why you invest in your own PM test kit. Nothing online is going to confirm "metal quality". The only exception would be checking numismatic value and that's moot if the SHTF.
There's still no good answer if the power goes out... crypto will be worth precisely dick if you can't get online to use it. Farmers aren't taking crypto... so make sure you've got your own food and enough lead to defend it first.
PM isn't for SHTF... it's for after when you have to pick up the broken pieces and start over again.
Imagine trying to price gold or silver, let alone confirm the metal quality. The argument of "if the whole grid goes down, what next?" is a bit silly
This is why you invest in your own PM test kit. Nothing online is going to confirm "metal quality". The only exception would be checking numismatic value and that's moot if the SHTF.
There's still no good answer if the power goes out... crypto will be worth precisely dick if you can't get online to use it. Farmers aren't taking crypto... so make sure you've got your own food and enough lead to defend it first.
PM isn't for SHTF... it's for after when you have to pick up the broken pieces and start over again.