Coinprism, are you affiliated with
https://www.coinprism.com ?
Is there a formal publicly-visible mechanism to remove the color from a coin, or is it up to the issuer to keep track of redemptions?
Does the open-assets protocol support coinjoin transactions? If the answer is "yes," this means that two entities that don't trust each other could trade colored coins for bitcoins without an escrow service. This would be very useful.
Yes, this is our official account.
And, yes open assets is compatible with coinjoin.
Here is the public information page that is automatically generated when you color coins to issue a digital asset (I filled in the data and provided the symbol for my worthless tokens (WTK)):
But what I think is missing is the number of WTK outstanding. I believe it should be public knowledge how many WTK are outstanding, correct? I'd like to see this here on the information page.
If someone uncolors their WTK, could the amount outstanding automatically decrement (assuming the uncoloring process is defined by the open-assets protocol)?
You are right, this information can be extracted from the blockchain (increasing when the coin is issued, decreasing when it is uncolored). At the moment there is no easy way to see that information, but we will be building a block explorer that gives various stats about colored coins (like units outstanding).
