Topic: [BOUNTY] 200 BTC for lightweight colored coin client(s) - page 4. (Read 10691 times)

It doesn't it exist, it's stupid, it's frivolous, fuck it.

Edit: p.s. whiskey.

Can someone explain what a colored coin is?

This is a shame colored coins haven't gained more traction.  They're a fantastic way to create stock or something, and a great new way to make bitcoins (or at least some of them!) even more valuable.  It really is a good idea and good addition to bitcoin.

bitcoinjs-server acts as a full Bitcoin node, it keeps its own blockchain database and so on.

https://github.com/bitcoinjs/bitcoinjs-server


Yes, but I think bitcoinjs-server is a better choice. Of course it can be used for "colored block explorer".

Depending on what functionality you exactly need, https://bitcointalksearch.org/topic/announce-abe-07-open-source-block-explorer-knockoff-22785 (ABE, Alternative BlockExplorer) is at least already able to read bitcoin style block chains and can also generate various reports. I guess it would not be ok to create a webwallet out of it, but at least some display/3rd party auditing for colored coin exchanges could maybe built in there.

Awesome! I've started poking around in the Electrum source, intending to implement the atomic/P2P trade tools for that platform.

Quite stoked to see colored coins hitting the rest of the clients codebases. There are some cool applications in the pipeline.

Huh?

Colored coins are definitely useless now because nobody have issued anything of value yet. And nobody have issued anything of value because the protocol isn't finalized and implementation is immature.

Effectively it's only a demo now.

And going through blockchain download and running ArmoryX just to play with it is a bit too involved.

I don't think bootstrapping would be that hard once we'll get all software done.

End users don't even need to know that they are using colored coins.

For example, they might interact with an exchange similar to https://btct.co/ but with extra features like anonymous trading, offline storage, transfer between exchanges and so or.

Or they might interact with a payment system which is able to transfer USD, but doesn't require any registration.

Let's hope that piuk directly will get the bounty
He seems a good and fast dev.

Anyway, I really hope to see a secure p2p market/exchange

Maybe the fact that you have to beg people to participate should give you some sort of a hint. 

Of course. Building a full blockchain.info clone would cost more than 200 BTC.

MVP first.

BTW, I guess that whatever portion of blockchain.info is opened source might be forked and used in favor of this project. It might take some more effort than building from scratch (or might initially appear to be more effort), but the benefit of forking blockchain.info's code is that it's battle tested.

Of course I could be completely wrong and blockchain's code might be a horrible fit for this project, I don't know it so I can't make that call.

Everything is going to be open source, however I'm not sure if we'll make considerable improvements to things which aren't directly related to colored coins. It won't be exactly like blockchain.info.

Glad to see this bounty posted, and thanks Alex for his hard work.

I think the turning point when Bitcoin really became usable was when Blockchain.info launched. Let's do the same for BitcoinX.

While we're at it - I believe that not all of Blockchain.info's code is open sourced today, right? Alex, could we make the result of this project open source? It could benefit any existing/new alt chains that don't want to or can't use BitcoinX directly.

I'm really looking forward to seeing what comes out of this. Colored coins are a big step in the right direction for bitcoin.

My dream is to someday hold oil, gold, and stable currencies in my bitcoin wallet. I probably won't buy colored coins yet (since you currently have to trust a third party to correct price divergences when the market doesn't), but I expect that self-correcting currencies aren't far behind (I think they will work something like this: https://sites.google.com/site/2ndbtcwpaper/2ndBitcoinWhitepaper.pdf).

It would be cool if more people tried using colored coins: it would help us to gather feedback and develop protocol further. But right now the only client is ArmoryX, and trying it out is pretty involved: it requires fully synced Satoshi Bitcoin client, and besides that ArmoryX eats about 1 GB of RAM. Few people would do that just to play with it...

So we want to see a web-based Bitcoin client which would support colored coins. Support for colored coins means that

• it should show balance for each installed color separately
• it should allow sending coins of a certain color
• it should implement p2ptrade protocol

Currently we 200 BTC for bounties for this project. We'll probably break the whole thing into smaller tasks and allocate bounty for each task.

As for architecture, we haven't settled on this now, but a perspective direction is to have server which can provide data about transactions in same way blockchain.info does, and client will identify colored transaction outputs using backward scan. Currently people are investigating whether it is feasible in terms of performance...

bitcoinjs seems to be a good basis both for client and for server.

If development of web client costs less than 200 BTC we will consider bounties for development of other color-aware thin clients like Electrum and MultiBit.

This is a preliminary announcement as there is no concrete plan yet, but people who are interested in doing this are welcome to apply. (Post here, send PM or post to bitcoinX mailing list: http://groups.google.com/group/bitcoinX/ )

Oh, by the way, of course it would be great if more people will chip in with bounty pledges. All results will be open source etc. It would be shame if we only do web but no Electrum.