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Show HN: Kong – Physical Cryptocurrency

kong.cash

31–40 of 395 posts

Re: Show HN: Kong – Physical Cryptocurrency

#31

Cool! What is the cost to produce each note today, and how do you anticipate funding that longterm?

They're literally printing money, if people actually buy it I don't think funding will be the problem!

(I could be wrong but from skimming their technical spec it doesn't seem to be redeemable for anything other than digital Kong tokens)

Re: Show HN: Kong – Physical Cryptocurrency

#33

I'm curious, have you tried passing an airport border security with several of these notes, and have you been asked what they are :)? Do you have to declare them?

Yes, they look like a bunch of circuit boards under X-Ray, it's pretty cool. We've travelled with "unloaded" Kong thus far (i.e. not backed by token). See section 4.1 on minting in the paper. Even so, we're unaware of any value to the Kong token independent from Kong notes and we are not taking steps to list it on exchanges. If Kong was to become a means of exchange somewhere then it might need to be declared as a mo…

How do they hold up in a saltwater environment? My feitan/yubikey U2F physical tokens are developing rust/corrosion just being on my keychain and being thrown in a drawer on my boat for a couple hours at a time. I2C leads + saltwater environment seems like it may cause some problems.

Re: Show HN: Kong – Physical Cryptocurrency

#34

Cool! What is the cost to produce each note today, and how do you anticipate funding that longterm?

Just a bit more expensive than the higher end notes produced by Switzerland/Australia and less expensive than limited edition postage stamps.

We looked at existing hardware wallets like trezor and ledger and realized we could create something like this for 1/20th the price. Once we realized the numbers we were playing with we ran with it. Conceptually, I prefer validating something with a cryptographic signing operations rather than looking at some watermarks.

Kong is a proof of concept but we could always print these for other governments.

Re: Show HN: Kong – Physical Cryptocurrency

#35
I understand many people here, and in the world, don't like cash anymore. But there are many others, like me, that still think that physical money gives them a better feeling of their spending. So in my eyes Kong is a really nice take on the cash technology, not to mention it's beautifully executed.

Re: Show HN: Kong – Physical Cryptocurrency

#39
So in theoretical use, is everyone expected to validate authenticity of each note exchanged?

That seems painful for small transactions, but without it you lose absolutely all the security benefits of crypto, right? (e.g. vulnerable to good old fashioned counterfeiting)

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