Post
Topic
Board Development & Technical Discussion
Re: Confidential Transactions, Content privacy for Bitcoin transactions
by
gmaxwell
on 09/06/2015, 16:35:23 UTC
Taint tracking is inherently against the fungibility property of money.  
Perhaps you've not caught on that this makes coinjoins and coinswaps tremendously more private and useful; since joining with anyone at any time improves your privacy, with no need to coordinate values. Smiley

You can think of it in these terms:  CoinJoin and CoinSwap are efficient metadata privacy protection systems, but their effectiveness is undermined by the content not being private.  CT is a content privacy system. The two compose very nicely. (And the RPCs in elements should be all setup to integrate with external coinjoin.).

If this materializes, will we see two kinds of Bitcoins traded in exchanges, standard Bitcoins that trade at $x, and tainted Bitcoins that have been in the privacy sidechain trading at $x/2 or so?

OP, would you feel comfortable putting all your BTC through that sidechain?

Uh. Interesting position, (checks posting history), ah. Thanks for taking the time to step away from your ordinary posting in Dash/Darkcoin threads to chime in here.   I reject your premise: A bitcoin system where fungibility had failed enough to produce the situation you described would have already failed as a money. as that outcome would be untenable.  It's also not a theory that is well supported by current practices as there seems to be little such effect for coins moved through a variety of altcoin exchanges which are rumored to be primarily frequented for (inept) money laundering purposes.