Bitcoin Forum

The network hashrate has got 573M, unknown 56%, why?

Data is queried from:
http://minexmr.com/pools.html

It is now close to 60%.

Will Monroe be attacked by 51%?

FPGA :)

where to buy those FPGAs ?

probably not for sale for now. they are "testing" the miner

A new botnet is also possible  ;D

You cannot buy them its private farms.

You can buy the hardware, but the problem is the software.

Next algo switch in few months?

Monero team has to urgently prepare new fork. Network is heavily centralized by some some strong FPGA pool.

I´m very concerned about this.

56% of the hashrate is unknown, not a pool. Maybe one person will have 51% soon --> so I sold all my monero´s  :P .

One thing I don't understand is this. Say you had the technology, money, and experience to make some FGPA/ASICs for Monero's current mining algo and you actually managed to achieve 50% of the hashrate of the network, why wouldn't you just spread out your hashrate across the various pools?

Because its freaking people out, and the XMR dev will obviously notice this and they will most likely do an algo change sometime in the near future and render their hidden ASICs useless.

I don't think its going to be a 51% attack, I just think its some greedy miner who wants to get as much $ as possible before the fork.

The greedy miner will most likely want to mine as much as he/she can and get his or her investment back befoe n algo change. As a result he/she will most likely sell his/her mined coins as soon as he/she can, and this will have a negative effect on the price of monero. The Eth Asics are also having a negative effect on the supply/demand of ETH and as a result a negativeeffect on the price of eth.    

We tired to tell the clueless monero devs that a the simple changes they were making to the algo every  6 months were trivial for fpga devs and even asic devs to implement.  on thier github we pleaded with them to implement something like a memory hard change or better yet a progpow like algorithm to stymie fpgas and ASICS for a longer period but they ignored it

This could be a smart move. At least we can be almost sure those unknow hash rate are botnets. As we know monero has become the favorite coin to mine with botnets because there are not specific hardware to mine monero yet, it only can be mined with CPU and GPU. So, is the botnets get more than 51% from the hashrate that coin will be doomed.

It's unfortunate that they do not consider better solutions than cryptonight, who ever said that it has to be a cryptonight variant always?  It's time to move on from it.

Also quite a sudden move, you'd think anybody with a brain (and a massive farm) would stagger their hashrate so difficulty didn't rocket so hard, and especially on the one coin that will <definitely> take notice and fork again. However big this farm is, it's easily delivering the owner 30% less over the last 3 days.

Like somebody wants XMR to fork...

It looks like a large botnet is building on the XMR network, we have seen a significant up tick in miner activity on monitored networks and they are calling out to known XMR mining pools.

I mentioned this the day the diff skyrocketed to what it is right now (it almost hit double diff) and price shortly thereafter took a big dive of a large percentage.

A 4 month algo change commitment would be ideal for XMR IMHO.   It would leave just enough time for development of a hardware specific solution before that solution would become invalidated.   The only real weak link at that pint would be the devs and sharing of these algos too early before network-ready release...  if they can stay honest in that regard, im sure the coin would be pretty much the ideal form of "asic resistant".

A big part of that resistance, is identifying hardware/FPGA that could be easily used to circumvent the new algo's anti-asic strong points.     At some juncture (probably at that point now TBH):  memory will not be a strong point of an algo any longer.  We truly need to find a way to make time an integral function of the hash.   Create a speed-limit "time base" and have it conform to that.  If you pull time to an equal playing field;  then having more speed simply does you nothing.  SSL uses time as a part of it's validation scheme; and I hope in the future, some sort of likeness to this concept comes to fruition.

I found this.
https://twitter.com/jasklabs/status/1092794627046944769

Fpga but CryptonightHeavy which I am mining it is giving good rewards to me still,I use Nicehash now that Winminer has shutdown and they pay in Bitcoin. Monero developers I don't think can do much about Fpga but they did a great job in their fight against Asics.

FPGA switching from Raven to Monero?

I heard a rumor a few weeks back (Jan 19th) regarding ASICs on the network - supposedly there was a batch of 5000 miners manufactured for a private Chinese farm that went online just recently. It seems to be pretty feasible after comparing against some analytics done on the nonce ranges of historic blocks:

https://github.com/noncesense-research-lab/nonce_distribution/blob/master/nonce_distribution.ipynb

Conveniently enough, this analysis concludes the miners came online around Jan 9th. Some chit-chat from IRC matches up as well:


At the time of this post, network hashrate is 850 MH/s (640 MH/s being 75% unknown), putting us squarely in the danger zone for network-level attacks. This is also a major drain on public pools - with only 230MH/s of "legitimate" miners popular pools are operating at a significant loss, having only 60-70 MH/s on average (e.g. SupportXMR at 0.6% is just below $1300/mo, while their server expenses are approximately $5000/mo). With the next hard fork still a few months out this is a completely unsustainable scenario and will eventually lead to the closure and consolidation of the public pools, not to mention a mass exodus of "legitimate" miners.

5000 a month expenses thats where the problem is .  They should not spend more than 1k max

It's not feasible, they need to have servers to handle nonce validation.