I was looking around for a comprehensive list of different protocols that are promoting “colored coin” concepts and was hoping others can help me fill in the gaps.
Open Assets - https://CoinPrism.com
CoinSpark - http://CoinSpark.org
Ascribe - http://Ascribe.io
PoE - http://www.proofofexistence.com/
Colu - http://Colu.co
Monograph - http://monegraph.com
Eternity - http://eternitywall.it/
Omni Layer - http://www.omnilayer.org/
It appears that OpenAsset & CoinSpark are the two largest use cases that take advantage of the OP_RETURN
Did I miss any?