Quote from: ubercab90 on May 05, 2018, 06:12:15 PM

Sounds interesting, but still got a question "Why??"

We need to take crypto to the billions.

Quote from: FrueGreads on May 05, 2018, 03:38:56 PM

I'm a bit divided here. First I think that using a mobile wallet on a phone is much simpler that making payments with these notes. People can just charge their mobile wallet, so that they don't need to be carrying a lot of money "on their phone", and they can then spend them just by scanning the QR code. It's much easier than carrying bills. Of course that I do understand that for some users, specially the elderly, this new way of spending money could be harder, so using this Physical Bitcoin system could help them. I don't see a great future on them, besides helping on a transition phase. They could also become some kind of cold wallet, so maybe they are aiming for that, I don't know.

Tangem Notes are not for small transactions they are more likes USD 100 and EUR 500 bills, for larger transactions and savings. Technically ever Tangem Note *is* a very secure cold wallet.

Quote from: Kakmakr on May 05, 2018, 08:33:19 AM

Ok, I am intrigued by this. Will this work like the old Casascius physical bitcoins, where you have the private keys stored on the physical coin or card or will this be administered by a third party and this card will just link you to their internal database via the Semiconductors S3D350A chips?

So will the manufacturer of the cards be in control of the private keys or would the private keys be stored on the chip? The ownership of the private key is the most important factor in this technology. Wink

Only the chip creates and controls the private key, it's impossible to export or import the key. The firmware is audited and the chip is highly certified. The manufacturer is not in control and even if Tangem disappears or is taken over, the notes will work safely, forever.