Take the 2-minute tour ×
Bitcoin Stack Exchange is a question and answer site for Bitcoin crypto-currency enthusiasts. It's 100% free, no registration required.

What exactly are colored coins? I've tried understanding, but I don't quite get it yet . . . Do any examples exist?

share|improve this question

1 Answer 1

up vote 19 down vote accepted

Colored coins are a method to track the origin of bitcoins, so that a certain set of coins can be set aside and conserved, allowing a party to acknowledge them in various ways. Such coins can be used to represent arbitrary digital tokens, such as stocks, bonds, smart property and so on.

The colored coins protocol is decentralized just like Bitcoin, but the current effort to develop an implementation is done under the BitcoinX project (tentative name), which also aims to provide some related services.

As this is still under development, you will not find any existing examples.

You can read more about it in Overview of colored coins (work in progress).

share|improve this answer
Meni - do you have a list of whitepapers you've written? I thoroughly enjoy reading them. –  makerofthings7 Mar 12 at 19:50
@makerofthings7: Thanks! The list is quite short actually, in addition to colored coins there's AoBPMRS (bitcoil.co.il/pool_analysis.pdf) and double-spending bitcoil.co.il/Doublespend.pdf. There are a few papers I collaborated on but are not really mine. I also have a blog, fieryspinningsword.com. And of course my vanity thread lists some of my more meaningful forum posts (bitcointalk.org/index.php?topic=121314). –  Meni Rosenfeld Mar 12 at 23:18
I'm curious if you have any modifications to a proof of stake...e.g. if you embrace any new ideas of others not in your whitepaper. That will be my next area of study. –  makerofthings7 Mar 13 at 0:12
wow...lots of great things in your posts! –  makerofthings7 Mar 13 at 0:18
@makerofthings7 - Not "new", I designed one of the original PoS implementations back in early 2012, much better IMO than the half-assed designs you see in various coins these days - en.bitcoin.it/wiki/Proof_of_Stake#Meni.27s_implementation. I'm also collaborating with Iddo Bentov on the Proof of Activity variant. –  Meni Rosenfeld Mar 13 at 9:21

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.