Tuvok

bitcoin

SATSCARD secound step to a offline cash usage with bitcoin

I also got LN nodes und use normaly LN over on-chain.
But i think satscard got a different use case. Its better for orange pilling someone.
If you got a taproot fallback address so that funds can be "recovered".
Yeah but downloading a wallet of satoshi is also very quick, but its more a showcase for
someone new. but if you got funds on a card you need to learn.

If you have never heared of satscard or opendime plz take a first look here...
https://satscard.com/
https://opendime.com/

Opendime was the first step. But opendime is quiet expansive and got only one slot.
So if you sweap the funds of the opendime you can not use it again. The price is 20$.
Satscard now got 10 slots and the price goes as low as 7$ so one slot is only 0,70$!

Now here are some new thoughts! With taproot it will be possible to create a transaction
which sends the funds away from the satscard to a known address! (maybe a card issuer)
So this would solve a problem which is that the card could be destroyed!

Also if you have a good enough synced blockchain you can also verify the founds on the card!
Lets say you only need to sync the blockchain once a month. The issued card just needs to have
a balance which is some month old! If the taproot fallback is set to 5 or 10 years the funds are
save even if card breaks.

I dont know if it would be possible to program this but the best way to verify if a card got a working 
private key even without internet would be to sign a random message you send to the card. But i dont know if this would break the seal? I think this is the real problem which someone has to solve.
How you know its sealed and not just a "copied" card and someone gives you the card and after that
just moves the funds. and this all in an offline enviroment?

Maybe you got some thoughts too!



Foundation devices launched the envoy app as a beta.
The batch 2 of hardware wallets is not shipped for now but
batch 1 (lounders edition)  owners can test the envoy app allready.
The envoy app is out for iOS and android.

It looks pretty amazing!

Foundation devices launched the envoy app beta.

Aside from LN do you use any other Bitcoin L2 platform?

IgnaciobTato

i only know the lightning related software the other ones i have never heard of. 

Which behaviors are most connected to Bitcoiners?

Stacking sats
Low time preference 
Run a node
Use coinjoins
Make lightning payments