Parallel mining/ split hashrate? possible! merged mining? is also possible but only limited coins that support merged mining such as Namecoin, sys, and a few others that phill mentioned above, there could be more, but the key here, the coin needs to support merged mining, in a nutshell, small coins have merged mining enabled to make their blockchain more secured, their blockchain is referenced in BTC's blockchain, to be specific it's saved as a transition in the BTC block itself.

This gives them a somehow secured blockchain at almost no cost, the downside, all these coins are worth little to nothing, so the rewards are almost nothing, I just checked my mining account on Viabtc (which I longer use), and it has 2.5BTC cumulative mining rewards, some NMC, SYS, EMC and ELA, the current value of all these merged mined coins is below $20, maybe at some point in the past bull cycle they were worth $100, but this was obtained after years of mining on the same pool, would I take $10 for every 1BTC mined? why not, would I bother switching pools just to get them? probably not.

Natural disasters are usually regional unless aliens invade planet earth or it's the day of judgment, aside from that, it can't get worse than the China ban except with a U.S ban assuming the U.S owns more than 60% of the total hashrate (China had 50-60% when the ban took place).

Now that we got that out of the way, I don't see how small miners can benefit from this, even if we were to assume a worldwide disaster, small miners don't live in a vacuum, they will be in the same shoes alongside the large miners, right after any difficulty drop, everyone will have the same chances of rushing into the mining business, in fact, the large players will be more ready than the average small miner who sent the miners to his grandmother's garage thinking he would never fire them again.

Large farms play the game a lot differently, they go to the extent of automating everything, at x profitability level change the miner's setting to x, at x profitability overclock the miners, at x profitability shut down the miner, if x coin has better profitability switch to that coin when disaster is over switch the miners on! so without a doubt, large miners will make use of any difficulty drop a lot better than most of us.

يبدو ان الحملة قد توقفت, لقد تلقيت هده الرسالة عن محاولة توتتق حسابي


او ربما لاني لا استعمل تويتر وحسابي غير نشط ولم اكتب تويتة واحد فيه من قبل؟ على العموم تكلفة الدومين 5$ في حال عدم القدرة على الحصول على الدومين المجاني.

طرق الدفع هي بطاقة مصرفية, باي بال, كريبتو او crypto.com.

بالنسبة للكريبتو يوجد عدة عملات مثل البتكوين والاثيريوم وبعض العملات الدولارية على شبكة erc-20.

وبالمجمل, الفكرة جيدة جدا. شكرا اوميقا.

Bitmain APW3 is just a mediocre PSU, it was designed to fulfill it's purpose at the cheapest way possible, the failure rate on those models is extremely higher than the other known brands, I can probably build a room with the dead APW3/APW7 that I have, anyone who had a few hundreds/thousands of them will probably be telling you the same, there are other Chinese cheap brands that outperform the APWs, even better if you get something like Seasonic or EVGA, a lot more expensive but certainly for a good reason.

Of course, this is only valid for the 12V 6pin miners like the S9, the new miners require factory PSU or custom made, not so many brands out there but according to reports I see on telegram it seels like some of those custom PSUs that work on the newer gen of miners are a lot better than the stock PSU in terms of durability and even lower harmonics.

I know, the part of my comment was supposed to sound funny, but ya, I know, I am not the funniest person you would meet online. , honestly, at least that website puts a warning of some kind unlike all the other online calculators I have seen, it does go on with using unstained numbers but ya, still better than just showing the imaginary gains without any type of disclaimer.

Well, it doesn't matter anymore, does it? they also said they would keep their miners running while undergoing the bankruptcy process, I think they are filing for chapter 11 bankruptcy, which means they simply are not going to pay the lenders according to plan, no signs of giving up and total liquation yet, I won't be surprised if they get more funds from someone else.


Anyway, the current status :


A good part of it probably due to the extreme weather in the U.S, the pace will likely pick up once this is over, but sure thing is, no positive adjustment.

Diff = the difficulty set the by pool, based on the number of shares you submit when you first connect the miner, the pool will set a number that is small enough to indicate the hashrate and large enough to avoid sending dozen of packets back and forth

Diffa  = Difficulty of the last accepted share, it always changes with every share you submit

on the pool side :

shares  = number of shares submitted (obvious I guess)
bestshare: is similar to the Diffa on the miner status page but unlike the miner status page it doesn't reset with every share you submit, the pool would reset it one a block is found.

if you so happen to hit your bestshare while looking at the miner's status page updated, diffA and bestshare on the pool will be the same.

Man, you gotta give credit to the website posted above, honestly, I think it's the most honest mining calculator I have seen in my entire life, if you read the second line of the website it states:


They couldn't have described any better, in fact, he goes further by saying



Now to be a bit more serious, I'd add to your post two factors that aren't mentioned in most places, are as follows:

1- All trends (including BTC difficulty and price) will be affected by the natural events of diminishing returns and the effect is impossible to guess, so the past average is exactly meaningless.

2- Using averages in mining calculation is plain stupid because while the price can do 200% over 3 years, you won't be able to stand 1.5 years of mining at loss, unlike buying BTC and having to just wait for the action to happen, with mining, you might still be in a larger cycle where profits are positioned to do 10x, but only after 13 months, having already both the gears and got under debt /rent/bills/contracts, even if you were dead sure that in 13 months you will be earning some serious money, you might just not be able to stand on your feet to witness that time.

I agree that the OP shouldn't start this topic, not because of the reasons you mentioned, but because this topic has always been philipma1957's idea, it's just annoying to see someone using someone else's ideas and efforts over the years even if the intentions are good, anyone who wants to start a difficulty thread should at least ask for philipma's approval.

Personally, if philipma1957 started one I would only participate in that topic even if I see 20 other topics related but if phill is fine with this topic, and doesn't want to start his own, we can just stick around and see how it goes.

I would certainly not bid on that.

Probably a scam website, I took a look, and nothing seems too cheap to begin with, could you point out what are the cheap deals listed on these websites and what type of miners are you interested in? I will give you the actual market prices in China and Hong Kong.

تحديثا لمنشور الاخ خالد بخصوص تجميد حسابه, اود لفت انتبأهكم الى ان انظمة المنصة يبدو انها قد تم تشديدها في الفترة الاخيرة خصوصا بعد  افلاس منصة FTX, اعرف 3 اشخاص كانو يستخدمو المنصة بشكل طبيعي وتم تجميد حساباتهم واحدهم تم تحويل قضيته لهيئة الاوراق المالية الامريكية حول شكوك بمحاولة تبيض الاموال (في الواقع الرسالة التي اراني اياها احدهم كانت تحمل ايميل لعميل FBI وتم اخباره من المنصة انه تم تحويل القضية لمكتب ال FBI وان باينانس لا تستطيع ان تخبره باي تفاصيل حول تجميد حسابه) , العامل المشترك بين الاشخاص هوا استخدامهم ل p2p وبطاقة باينانس, يبدو ان المنصة تتعرض لظغط من الولايات المتحدة والمنصة اصبحت مجبرة بالتدقيق في كل الحسابات.

اتوقع (والله اعلم) ان باينانس تحاول تقديم عدد لابأس به من المسخدمين على طريقة "كبش الفداء" للسلطات حتى لا تعرض نفسها لتحقيقات موسعة, لا اعتقد ان الشخص العادي التي يتملك 5 الاف او 10 الاف دولار يستخدمها فقط للتداول سيكون معرض لمثل هده الاغلاقات, ولكن اي شخص يقوم بتحويل مبالغ كبيرة ويستخدم P2P او اي تحويل له علاقة بعملات البنوك سواء ايداع من بنك معين او استخدام بطاقة باينانس سيكون تحت تهديد التجميد, الافضل في هده الفترة خصوصا هوا عدم ابقاء اي مبلغ داخل المنصة الا للضرورة.

كان لدي بعض العملات المستقرة على المنصة (ليس مبلغ كبير) ولكني قمت بتحويلها الى محفظة خارجية لكي لا اشعر بتأنيب الضمير في حال حدث اي شي لمنصة باينانس, اعتقد في حال صمدت المنصة لمدة 3-6 اشهر, يعني ان الخطر قد زال, اما مايحدث الان من ضغظ السلطات على المنصة يمكن ان يؤدي الى انهيارها او استمرارها في غلق الحسابات لتبين للسلطات ان المنصة تتبع القوانين, في كلتا الحالتين شخصيا ارى ان ترك العملات هناك امر خطير جدا في هده الفترة.

That's a fan simulator, are you planning on removing the 4 fans and just count on the external inline fan to cool the miner? seems like a good idea but the problem with this approach would be the possibility of over-cooling the miner when not needed, if the room temp is low the miner's software will lower the fan speed, you can't do that with an external fan, unless you get a smart fan which you can control with a temp sensor attached to the miner.

I wouldn't say they beat the aftermarket firmware, the report I saw shows the best efficiency at 25w/th with about 20% loss in the total hashrate, Artemis3 mentioned 20w/th, I am sure Vnish folks would probably report similar numbers, of course, you still need to consider the dev fees you pay for those two versions, but auto-tunning will always beat static figures in term of efficiency.

IMO, S19 pro is pretty much effienct by default, the efficiency gains will affect the total earnings for most people with low power rates, a 20% loss in hashrate or even 10% is no joke, it will be good for those who pay higher rates, some serious maths need to do before choosing whether to go for the upgrade or not, the same math that needs to be done when choosing to go custom or not, different things work differently for different people.


There is no need to sign in, just go to https://shop.bitmain.com/support/download
select S19 pro or S19j pro, the latest firmware has (Support S19 Pro low power mode) in it with publish date 19-12-2022.

So it seems like my previous guess of starting the new epoch with a very low pace is coming true, the hashrate that left in the last 2-3 days of the previous epoch was pretty huge, and so far we have these numbers.


I think it's fair to assume a 3% drop in difficulty for this epoch, something to wipe out that unstained hashrate that caused the last 3% increase.

Looking at the profitability chart, it's a lot worse than the price chart, a year ago, the profitability per th was 0.25$, now it's only 0.056$, that's a 77% drop. In fact, the highest we had during the top phase was 0.45$ per th (when many people were paying 15k for S19s), it's now 87% lower, in terms of price it's just 75%, and the difficulty increase is responsible for the loss difference.

We are only 14-15 months away from the next halving, all miners are in a race against time, and some spectacular events need to happen to save the day, if we don't go above 50k before the halving, man, many if not most of those large players will be liquidated, assuming they manage to survive till then in the first place.

The main point here is "trust", the post above talks about a straightforward scam, some scammers will tell you that you did manage to hit a block but you need to send some BTC for the fees because the block is stuck on the pool's wallet, that's just one out of the so many lies they can come up with it, the payment method is some irrelevant, a direct payout written in the coinbase or an automation process at the pool side after the block reward has been sent to the pool's address both should be safe as long as the pool operator is honest.

So far, the two good pools we know off are Ckpool and Kano.

To run a small system like OP is intending, a small miner like a USB type of miners where consumption is below 200w, it's doable with solar and batteries, but to run large asic miners like all the new models out there which require 3KW and above, without doing any math I can tell you without a shadow of a doubt that you can't run them on batteries and still make any profit.

It would be cheaper to get 2*150A batteries instead of 3*100A batteries, it would also be easier to set up and requires less cabling since he is going to need to wire them in parallel, although I think it would be wise to run them in series and get a 24V inverter instead of the 12V, a 24V system has a few advantages over 12V system, with the exception that you can't expand your batteries with 1 battery at the time, you will always need to do them in twos.

I don't think so, the price was at the same current level at the beginning of this difficulty epoch and yet we saw the pace was 107% and held strong for a couple of days, even before the small price increase, hashrate started going down on the 13th of this month, ironically one day before the top of nearly 18k.

Avg block time on the 13th was 8.7 minutes, it has been increasing since then, got to 11 minutes on the 17th, which suggests the drop in hashrate has been happening before the price.

shares are not controlled by the pool, they are controlled by the miner, however, the outcome of those shares is made up of a few aspects, one being the coinbase transaction, which tells the mining/non-mining nodes who gets the block rewards.

So even if you managed to somehow broadcast that shares outside of the pool, the payout will still go to that pool if it contains their btc address in the coinbase transaction, they only reason the pools pays you BTC for shares you submit is that fact that your share contains their btc address as the payout address if the address is anyone else's they will simply reject the share.



There seem to be more issues with using PPLNS pools even the large ones, one of the largest Non-PPS pools had a bad month last month, something like 20% less rewards throughout the whole month, some people say this is bad luck, some say it's bad software, it could be anything for all I know but it wouldn't change the outcome.

If it was bad luck, with profitability being this low, a 20% drop in rewards is probably going to hurt most miners, also, I tend to believe that pools that offer PPS payouts have more reasons to continuously check their code/servers and every tiny aspect of their infrastructure because every block the pool loses will have to be paid from their own pockets, pools that play by the "if we find blocks we pay you, if we don't we don't" have fewer incentives in keeping everything in a perfect shape.

Of course, it doesn't mean they will intentionally lose blocks because they still want to get the fees, since they pay for employees and servers, but they are not under enough pressure in many cases, I would still point out the fact that there are likely better built and maintained PPLNS pools than some PPS pools but why would I count on that? what reasons do I have to take any risks when I can pay slightly more fees to know in advance that I will get x btc -+1-2% for the next 2016 blocks whether the pool had a software bug or a node server go down?