I made this video before two years, and now I want to share it with Steemit community. This is a interesting video tutorial how to make Bitcoin vault cube, safe storage for your precious digital money. Imagine you can save
Bitcoin (or any other altcoin) for a 10 years. Block reward will be halved two times, and mining difficulty will be very high.
How much 1 BTC can be worth for 10 years ???
You can also use this cube to save gold, jewelry, paper money and any other valuables. All you need to make this is a few simple things: paper wallet, cardboard, package of gypsum, water, scissors, some kind of small plasic container, duct tape...