What if you had, let's say....5000 Bitcoins in your custody and suddenly someone demanded it as a ransom in exchange for someone very important to you, would you make the exchange?

I don't sell these, it's a personal project someone here may want to repeat.  

A short guide and more pictures on my main site:
https://pinode.weebly.com/hardened-cold-storage.html

So a while back I tried to punch/stamp these Stainless Steel business card blanks with address/Private key for safe keeping. But the Steel didn't mark very well and it was very time consuming. Aluminium did stamp well but has a low melting point and has a chance of not surviving a house fire.

Prototype with test (inactive address and key, although they are a working matching pair).



It was masked with nail polish, design laser etched, and then the metal was electro-etched with salt water. Copper Sulphate added to copper plate the etch.


Surprisingly cheap and easy to do at home. (Cheaper than hardware wallets). Also very cheap if you already own a laser toner based printer. A cool project to show your kids, with electro-etching and plating.

i tried to look this up but can't find anything worth resonable.
i am newbee and my hardware is not good enough to mine zcash or eth. so i started looking up for altcoins.
and this question keeps coming up to me.

How many coins you should mine before switchig to other?

what is the
1: bare minimum,
2: a good amount or
3: a pretty good amount.
of the particular altcoin.

there are just so many coins out there.

btw about my hardware:  i got gtx 1060 6gb. in some algo it is good in others it is sligtly less. it's crappy version so things changes algo to algo.