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Javascript Bitcoin Miner

forum.bitcoin.org

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Re: Javascript Bitcoin Miner

#41

Post by Groxx »

kes wrote: post #21
ccarpenterg wrote: post #9

Idea: Screensavers with a bitcoin miner. Like SETI@home. Bitcoin@home!

But who would get the coin?

I'd imagine a particularly good screensaver would be profit-sharing, but everyone else would run a free one and get all the mining income. Solo-mining is not really an option any more, and it'd be easy to cheat (detect wins & claim for yourself), so it'd have to be pool-based to be useful.

Re: Javascript Bitcoin Miner

#42

Post by Groxx »

rudiger wrote: post #20
seanalltogether wrote: post #8

Earlier quoted context omitted.

I know plenty of women who spends hours a day playing casual games, if you embedded a bitcoin miner into a free facebook game you might be able to generate some decent revenue while they play.

Why not embed a Bitcoin miner in a regular, installable MMO game and use their GPU ? A single gamer's GPU could be worth more than thousands of casual gamers' browsers. Also, MMO gamers can be just as "dedicated". Bonus points for using Bitcoins as an in-game currency.

Now that is an idea. Make it a casual game, though, so the GPU use of the game is minimal, maximizing the mining GPU cycles. MMO & other often-graphics-heavy gamers tend to be a bit fussy about framerates.

Re: Javascript Bitcoin Miner

#43

Post by dave1010uk »

Someone could make a URL shortening service that frames sites, including the mining JS. Users could sign up and get a % from the mined coins on links that they share.

As many people are pointing out that GPUs are faster for mining that CPUs, would you be able to make use of a GPU with WebGL (or GPU-accelerated Flash)? I guess the GPU computations don't fall in the spec of WebGL though.

Re: Javascript Bitcoin Miner

#45

Post by wladimir »

Groxx wrote: post #37
cookiecaper wrote: post #7

It is bad to use a bunch of the user's CPU without any notice. They will probably notice that your site makes their computer slow and never come back again. Also, once they find out you've been using their CPU power/electricity/battery life surreptitiously for private, unshared gain, you will probably have some angry customers. Additionally, does this automatically hook in to slush's pool or something? Bitcoin mining…

Interestingly, from post #9: Chrome13-canary: ~15.2k/s FF4: ~6.4k/s Safari5: ~6.2k/s IE9: ~1.6k/s So yeah, massively massively slower than regular GPU mining. Anyone know of a way to push WebGL into doing hashing functions, and reading the results out?

If you can have shaders in WebGL with integer ops (bitshifts, xor) you could do it.

Re: Javascript Bitcoin Miner

#48

Post by code_duck »

Groxx wrote: post #37
cookiecaper wrote: post #7

It is bad to use a bunch of the user's CPU without any notice. They will probably notice that your site makes their computer slow and never come back again. Also, once they find out you've been using their CPU power/electricity/battery life surreptitiously for private, unshared gain, you will probably have some angry customers. Additionally, does this automatically hook in to slush's pool or something? Bitcoin mining…

Interestingly, from post #9: Chrome13-canary: ~15.2k/s FF4: ~6.4k/s Safari5: ~6.2k/s IE9: ~1.6k/s So yeah, massively massively slower than regular GPU mining. Anyone know of a way to push WebGL into doing hashing functions, and reading the results out?

And if that's all IE9 does, how about the 40-60% of visitors using earlier IE versions with even worse JS performance (and no WebGL, of course).

This doesn't seem particularly viable, but it is a nice effort.

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