Bitcoin Forum

Other => Off-topic => Topic started by: casascius on January 22, 2012, 03:25:34 AM



Title: What making Casascius Coins looks like (video)
Post by: casascius on January 22, 2012, 03:25:34 AM
http://www.youtube.com/watch?v=-NyzDY7NUOo


Title: Re: What making Casascius Coins looks like (video)
Post by: rjk on January 22, 2012, 03:31:18 AM
http://www.youtube.com/watch?v=-NyzDY7NUOo
Cool! Looks like very boring work though. :-\


Title: Re: What making Casascius Coins looks like (video)
Post by: the joint on January 22, 2012, 03:38:23 AM
I'm overqualified for this job.


Title: Re: What making Casascius Coins looks like (video)
Post by: Matthew N. Wright on January 22, 2012, 04:42:10 AM
Reminds me of folding 10,000 flyers for my college prep school in Korea. That was fun.


Title: Re: What making Casascius Coins looks like (video)
Post by: the joint on January 22, 2012, 04:53:23 AM
Reminds me of folding 10,000 flyers for my college prep school in Korea. That was fun.

Love your avatar, bro.


Title: Re: What making Casascius Coins looks like (video)
Post by: casascius on January 22, 2012, 05:26:24 AM
May not be fun, but keep in mind I am charging about $2 for each coin


Title: Re: What making Casascius Coins looks like (video)
Post by: Meatpile on January 22, 2012, 04:54:47 PM
Why is casacius the only person that gets away with so many spam / ad postings on this forum?


Title: Re: What making Casascius Coins looks like (video)
Post by: Hawkix on January 22, 2012, 05:13:37 PM
Just interested how do you keep track of private/public key pair? Does the paper circles have public key on one side, private on another?


Title: Re: What making Casascius Coins looks like (video)
Post by: casascius on January 22, 2012, 06:38:02 PM
Why is casacius the only person that gets away with so many spam / ad postings on this forum?

I am essentially advertising giving away the ability and knowledge to make physical bitcoins to others, far more so than advertising to others to come buy mine.  A subject more of "open source" interest than typical ads.

I cannot satisfy the true demand for physical bitcoins making them myself, so I charge an inflated price to balance the supply and demand.  I am looking to encourage well-qualified others to make these at a profit.


Title: Re: What making Casascius Coins looks like (video)
Post by: casascius on January 22, 2012, 06:44:59 PM
Just interested how do you keep track of private/public key pair? Does the paper circles have public key on one side, private on another?

I use a database that tracks the funding status and denominations of the coins.

One simple script queues the coins for activation using a firstbits lookup. The database knows what addresses I have generated, and can auto reject typos.

Another script produces a "sendmany" script for bitcoind to actually send the BTC out (I paste it into a shell window).  Using sendmany allows for bulk funding of coins in a single transaction, cutting out complexity and transaction fees.  The full bitcoin address is pulled from the database so I never have to type any more than the firstbits.

Another script sets aside a batch of coins for later funding. This is used for international orders. When the orders arrive, I simply throw their coins into the activation queue.


Title: Re: What making Casascius Coins looks like (video)
Post by: cbeast on January 22, 2012, 07:04:52 PM
And then you also just give away those private keys in the video to anyone with Mission Impossible Video Enhancement.  ;)


Title: Re: What making Casascius Coins looks like (video)
Post by: Matthew N. Wright on January 22, 2012, 07:12:10 PM
And then you also just give away those private keys in the video to anyone with Mission Impossible Video Enhancement.  ;)

CSI


Title: Re: What making Casascius Coins looks like (video)
Post by: BadBear on January 22, 2012, 07:55:56 PM
And then you also just give away those private keys in the video to anyone with Mission Impossible Video Enhancement.  ;)

CSI

http://www.youtube.com/watch?v=qAvUFD68NEQ


Title: Re: What making Casascius Coins looks like (video)
Post by: DiThi on January 22, 2012, 08:08:45 PM
And then you also just give away those private keys in the video to anyone with Mission Impossible Video Enhancement.  ;)

CSI

http://www.youtube.com/watch?v=qAvUFD68NEQ

http://www.youtube.com/watch?v=KUFkb0d1kbU

Uncrop!


Title: Re: What making Casascius Coins looks like (video)
Post by: casascius on January 22, 2012, 08:14:41 PM
And then you also just give away those private keys in the video to anyone with Mission Impossible Video Enhancement.  ;)

The only glitch being that the private keys are face down - what is face up is a repetition of the firstbits.

Unless of course, the equipment can zoom in so well as to see the private key through the paper.  BUt then again, the coins have a window you can see through even on a completed coin, so just do the same thing on a completed coin and you'll have hacked it!


Title: Re: What making Casascius Coins looks like (video)
Post by: gurg2.o on January 22, 2012, 11:18:18 PM
Anything to the coin other than novelty?  :D


Title: Re: What making Casascius Coins looks like (video)
Post by: cbeast on January 23, 2012, 01:14:54 AM
I wonder if there is any interest in coining alternate block chains like namecoin?


Title: Re: What making Casascius Coins looks like (video)
Post by: Matthew N. Wright on January 23, 2012, 01:44:39 AM
I wonder if there is any interest in coining alternate block chains like namecoin?

lol


Title: Re: What making Casascius Coins looks like (video)
Post by: Ranvier on January 23, 2012, 02:21:02 AM
If you don't mind me asking, why is it that shipping costs $6 for one coin?

If the shipping didn't cost so much I might be more inclined to purchase one.


Title: Re: What making Casascius Coins looks like (video)
Post by: bombo999 on January 24, 2012, 08:44:58 PM
very interesting product


Title: Re: What making Casascius Coins looks like (video)
Post by: casascius on January 24, 2012, 09:07:48 PM
If you don't mind me asking, why is it that shipping costs $6 for one coin?

If the shipping didn't cost so much I might be more inclined to purchase one.

I am using Priority Mail Flat Rate mailers - same shipping cost regardless of number of coins.

Most people order more than one coin (and possibly for the very reason you cite - it's not as cost effective to pay that for orders of single coins).