You speak all those languages and can't read a white paper? That's odd!

Se ela existisse, o dono do rig minerava nela ao invés de alugar o rig.

Sorry, but that is untrue! The amount of coins generated is still the same, no matter what the miner is. It becomes more concentrated in the hands of few, not more scarce! And concentration does not increase the value, but also makes it more prone to pump&dump schemes. So no, those are not good reasons to have GPU miners. The good reason to have a GPU miner is, as Mr. Spread already said, that SOMEONE ALREADY HAS ONE and is keeping all the coins to himself! So making a free GPU miner that everyone can use will ease this concentration, at least for now.

Só lembrando que o DF tem 2,5 milhões de habitantes, dos quais menos de 1000 são políticos. Se somar políticos mais "agregados" não dá 5 mil pessoas, então não se preocupe, não é "quem manda" ou quem está próximo do poder que está usando BTC em brasília. É só porque aqui tem muita empresa de TI (o governo é o maior consumidor de TI do brasil), e gente de TI é atraido por novas tecnologias...

Bloom filter is actually slower than the currently used solutions, since false positives are quite costly. Some people have tried it already, and using a regular hashtable and ignoring collisions is way faster (up to twice as fast depending on the implementation). But still, due to the size of the search space (2^50) and the amount of data to be hashed (2^26), even bloom filters would use an amount of memory that would not fit in the local memory of  any GPU in the near future. So, even with a hashing data structure way more efficient than bloom filters (say, something twice as fast as the current implementation), we'd still have GPU and CPU mining ration bellow 5:1, which is quite acceptable. But then, momentum is not the only way to abuse the use of memory, there might be simpler ways to do so (preferably something that can be used with hashcash PoW, which makes for a much simpler transition). But then, i'm not the one deciding the priorities.

It is because it is easily detected. Botnets need to keep a Low footprint or they wont survive long.

Eu diria que mineração é um tipo de concurso, onde somente o primeiro logar ganha o premio. pode ser disputado individualmente (solo) ou por equipes. Talvez descobrir como equpes de poker declaram imposto ajude a entender o que fazer com mineração.

well, a small change might be something that requires huge amounts of memory, or even to use diskspace in order to be calculated, which makes the use of GPU so slow that CPU are still usable for mining. (take a look at the momentum algorithm used on protoshares, miners are only 2 or 3 times faster on GPU).

try this one:

because if he is the only one holding most coins, the coin will drop its value and he will never be able to profit from his miner. Best way to profit from a GPU miner is to mine for a short while, then release it and wait for the coin to raise prices again before selling.

 o negócio é que não tinha dono. Esse swap está sendo feito "a revelia" da comunidade. Os criadores da nova moeda simplesmente resolveram que vão destruir a BRC e a SMB e estão usando a força que eles tem por ser a unica exchange para forçar isso. É uma empresa querendo tirar das màos da comunidade o poder sobre a moeda.

Enquanto não explicarem direitinho porque passaram a perna nos devs desse jeito, não vou investir não. Se passaram a perna nos devs da BRCoin, podem passar a perna nos usuários dessa nova coin também.

Pelo que conversei com os devs da BRCoin, foi um "hostile takeover" mesmo. A bleutrade "passou a perna" neles, e fez isso na surdina, sem falar com ninguém. Achei uma sacanagem muito grande com quem investiu na BRCoin, e se os devs conseguirem outra exchange para ela, vou continuar investindo e apoiando ela.

Galera,

Alguém sabe alguma coisa sobre isso?

http://forum.bleutrade.com/index.php/topic,209.0.html

e isso?

https://www.facebook.com/photo.php?fbid=10203753067880164&set=gm.387694064717020&type=1&theater

Os devs das moedas estão sabendo? estão envolvidos? quem está por tras da nova moeda? Qual o envolvimento da Bleutrade na nova moeda? Quando ela vai começar a funcionar?

Não consegui nada de útil sobre isso...

Well, you should start with platitudes, like, whenever the price is going up on some exchange, announce it there. Whenever there's opportunity for arbitrage (price in different exchanges has huge spread), announce it there. Announce new versions, post links to downloads regularly, announce bounties. This kind of thing. (Repeat the info in the OP weekly, in small doses).

Then, when there are REAL announcements to be done, post them there (new miner, new versions, new exchanges, etc). And try to answer questions and compliments (but ignore any petty criticism, FUD and trolls)

You can also try to "hire" someone to do so, there are several people that have interest in the growth of the coin, some of them might be good with social media... Just choose with care, since they will be the "face" of the coin.

In my experience, botnet operators will not bother trying to code or understand code, so if no one publishes a standalone miner, they will simply look for another coin, maybe less profitable, but easier to deploy.

forgot to comment that: you don't really need an external API for GPU. Since OpenCL is compiled on the fly, you can implement it inside the wallet. Just work out an internal API to make it easy to link different miners to the wallet. (As a spreadcoin "entusiast", i'd prefer that, since it would keep a high cost for botnets).

I have not much time lately, that's why i am not currently applying for this bounty. As soon as I have some free time, if no one else is working on it, i'll contact you so we can develop the GPU miner. I still need to understand how the signing work, so i can implement it on openCL. (AFAIK you use some external bignum library that we'd need to port to opencl, or at least port the relevant operations).

Also, nvidia cards are much more power efficient for mining X11, so a cuda miner should also be considered. (not my specialty, i'd have to learn how to use cuda, but might be easier to port external libs).

Sorry if you already answered that, but... Has the started working on a solution? What does he say about it? will he be fixing it? how long will it take?

Thanks a lot.