I understand that there are a few tool kits out there for coloured coins which run off of the Bitcoin blockchain, for example, coloured coins, mastercoin and counterparty.
Although I understand that the underlying mechanisms for each are different I am looking to find out more about the variety of custom blockchains and transaction validation rules that can be created with each.
For example:
1. Could an altcurrency be created using any of these which uses demurrage in the same way that Freicoin does?
2. Could an altcurrency be created using any of these which destroys coins in the same way that PPC does per transaction?
I'm very sure based on it's initial spec that Ethereum will be able to do this. However it is not a coloured coin on the bitcoin blockchain so I would like to exclude it from the topic of this thread.
Specifically I'm interested in whether coloured coins, mastercoin and counterparty can do this?
[EDIT: I've moved this thread to Development & Technical Discussion as it may be more appropriate there.]