Wasn't the fork threat more about Bitmains ethical practices in the mining community more than just competition for the other device?
I read as they are taking a "wait and see" approach before implementing any soft fork
Exactly. They will not make a move unless they start to see empty blocks being mined or a 51% attack. Bitmain is unlikely to do either of these things because they have the common sense not to. They know that damaging the (currently) small mining community for Siacoin would only hurt Sia, and thus hurt their sales of Sia mining ASICs. |
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Before anyone else jumps on this, remember that there's already another Siacoin ASIC being shipped from https://obelisk.tech/ They're already doing batch 2 so the hashrate might already skyrocket before these Bitmain ones even ship out. A3 is being shipped out, received a shipping notification through FedEx Delivery manager for delivery on Monday  Obelisk batches are scheduled to be shipped in June and August.  thats great.. im checking my email frequently now because of you! I managed to pick up a small batch of these also.. My Bitmain account still shows unshipped. Shipping notification received is through FedEx (if you have an account, it let's you know of incoming packages). Bitmain lets you use Fedex? Whenever I have selected it I get a popup that says "Please Input Import No" I always assumed that as an error. I have used FedEx for Bitmain orders since S3 becuase they were and are the cheapest of three. If you enter your EIN or SSN, pop-ups stop  what is the EIN or SSN? can you explain this short EIN is a tax ID for US companies. SSN is a tax ID for US individuals. You should only enter the EIN or the SSN, but not both. |
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Can someone tell me if we can run these in a aprtment in the US? I believe we have 125 V 15 A breakers. But the APW++ PSU on bitmain site says that 110 V will only provide 1200 W ourput. Are we SOL? Will the bathroom or kitchen special outlets do any help?
You'll be able to power a single A3 on one of those circuits, but I wouldn't use a single APW3++. I'd go for the EVGA SuperNova 1600 G2 instead. We have a ton of customers who attempted to run the S9 with an APW3++ over 120v circuits and would often experience hashing boards that would just disappear until the next reboot. Moving to 220v circuits almost always fixes the issue permanently. The point is that the APW3++ will still attempt to output the full amount needed by the miner, but the power will likely be less consistent and you'll also be increasing your fire hazard risk. If you insist on using the APW3++, then get 2 of them and run some hashing boards on one and the rest on the other. |
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I only can confirm the units we ordered and they said Tuesday. 14 units we resell at around 4300 USD and the other units we keep for our mining ops in Thailand. How were you able to get around Bitmain's 1/customer limit? Did you simply purchase using multiple accounts or did you purchase from the Chinese site? |
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Looks like they're in-stock again!
IF they were ..they are gone now (not interested...but watching) 3 min from your post above ..that has to be a record IF it was not a glitch and a couple unpaid units that pop'd back up Just received the following email from Bitmain too: We've just re-opened the same Antminer A3 batch!
To avoid hoarding by resellers and to ensure more users in different time zones can purchase an Antminer A3 unit, we will be re-opening the same batch after every hour beginning 11AM (18 Jan, GMT+8).
Thus, you may intermittently notice that the batch is out of stock. We will announce on our Facebook and Twitter accounts as soon as the batch is completely out of stock.
Regards,
The Bitmain team
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Looks like they're in-stock again!
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I really hope these are more reliable than the AntMiner D3 was.
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Announcement from Sia team :
Bitmain has announced ASICs for Sia, shipping in 7 days. 1275w, 815 GH/s, ~$3200 USD. They are more expensive and less efficient than the Obelisk SC1, but they ship several months sooner (7 days as opposed to several months).
Bitmain has a long history of being abusive towards coin communities, their customers, and towards coin developers.We prepared for something like this by adding an extra feature to the SC1. We can do a soft-fork that slightly changes the PoW algorithm which would invalidate the bitmain ASICs, but allow the SC1 units to continue working. In the event of an attack from Bitmain, we can activate this soft fork. At this time, I do not think it is necessary, but if they start mining empty blocks or otherwise prove problematic for the network, we have recourse that does not involve destroying the usefulness of the SC1 units. This fork would of course require community adoption, it's not something the devs could decide to activate on their own. It would be a UASF, because the majority hashrate would not be standing behind the soft fork.
Overall, I do not think we have much to worry about. Hopefully (and very likely), this soft-fork will never be necessary. But I wanted to remind everyone (including Bitmain) that, at the end of the day, it is the community that has control, not the miners. If ASIC manufacturers act in a way that is harmful to the network, we have recourse.
Just chest thumping. That would be suicide to Fork in response. They could lose most of, if not all miner support. Bitmain could just re-flash the firmware to respond? Initiating the fork could actually give control to the ASIC's miners, of the entire surviving coin. I suspect Bitmain would like this attempt. Bitmain are some cagey cats man. They know what they are doing. Its especially ironic considering last year Sia was waxing poetic about how great ASICs will be for the network and how they are so much better for security than GPU mining. I guess that only applies when they are profiting off of the ASICs? This seems like a giant strawman argument. What the hell do they mean by "an attack by bitmain?" And why would the A3 mine empty blocks. I bought an A3 but I would almost like to see them go through with this soft fork idea to watch their coin implode. I don't know how they would implement it seeing as the people providing 100% of the hashrate will be owners of the A3. Another piece of irony: Obelisk bagholders are on here bitching about Bitmain selling 6000 of these units (which I don't think there is any way to verify this) but they seem to conveniently forget that Obelisk was trying to sell 10,000 in their pre-sale! The actual number came in under 2000 though since most people don't want to tie up $2500 worth of bitcoin for a year. What Obelisk should have honestly done is create a Kickstarter. Would have went out to a larger audience and there would be less expectations. Sia explaining how awesome ASICs are: https://blog.sia.tech/choosing-asics-for-sia-b318505b5b51Yeah, I feel like Obelisk would definitely be shooting themselves in the foot if they tried to pull that stunt. They can't have it both ways. |
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FYI, our Dec 20-30 Jan 11-20 order finally shipped.
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I bought one because  lol ugh Haha, I look forward to your review if you do one! |
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anyone that might have an extra one to sell, id like to get one but I haven't that much bch lol, anyone wanna make a deal of some sort?! drop me a PM or hit me up in discord link is on my profile
Prepare to be plagued by scammers. Please use escrow if possible. Please stop already, lol. So difficulty will atleast triple quadruple when all these are online? Hopefully they'll not sell more than 2000 units. 1700 Stole this from the other A3 thread. Yikes! |
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Hi guys,
I don't think it's the same chipset like D3
A3: BM1720 D3: BM1760
Bye, FNT
They're different because the D3 are x11 and the A3 are Blake 2b. The similarities are the fact that the blake 2b difficulty is about to skyrocket. I'm sure Bitmain has been "testing" these for a while now on Siacoin, either that or they are going to test them for 10 days so keep an eye on it. At least they are limiting these to 1 per customer. I'm happy with the 2 that I was able to get my hands on. I'm sure they're testing to make sure they work - but they either have a very small batch or are not testing on the main-net since the global hashrate hasn't really done anything unusual lately. |
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I dont have BCH to make payment, i like to see wire transfers. Why they insist bitcoin cash?
They've been doing that for months now. I'm not going into the pros/cons of bitcoin cash, but most miners didn't like what Blockstream was doing to Bitcoin Core. Bitmain was very vocal about their discontent for the direction Bitcoin Core was headed in with Blockstream and decided to champion Bitcoin Cash. Regardless of how you may feel about Bitcoin Cash, it's a fact that there are currently less ways to acquire it than Bitcoin since not every exchange trades it yet. As a way to drive demand, Bitmain is wielding a giant carrot over Bitcoin Cash in the form of making it the only accepted payment method for their products. Personally, I've found that it isn't a limiting factor and enjoy the low fees and instant confirmation times. I admit that I miss wire transfers being an option, however. |
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I purchased and plan to do a YouTube review again. Also, they just came back in stock again.
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Well that was quick. Sold out in 7.5 minutes.
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Any idea of bitmain batches size?
No - and the source code from Bitmain's listing page doesn't have the remaining count listed (yet). Are you saying that the hard cap is viewable in the source of the page during the sale? Sometimes - yes. I am usually scrambling to purchase before they sell out, so I'm rarely looking at the page's source code at the times that it shows the remaining count. It does show the max order per person = 1 this time, which I've confirmed by attempting to add more than 1 to the cart. |
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Any idea of bitmain batches size?
No - and the source code from Bitmain's listing page doesn't have the remaining count listed (yet). |
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Oh yikes, looks like global hashrate for Blake(2b) is around 627.58 TH/s (at this moment). It would only take 770 AntMiner A3s to double the global hashrate. Looks like this is going to be another AntMiner D3 situation.
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Oh yikes, looks like global hashrate for Blake(2b) is around 627.58 TH/s (at this moment). It would only take 770 AntMiner A3s to double the global hashrate. Looks like this is going to be another AntMiner D3 situation.
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It's the algorithm used by SiaCoin, and others.
Sia is currently developing and selling their own Asic, but which is not shipped before June.
Sia's "Obelisk" runs at 800GH, which a power consumption of 500W. First batch (June) was sold around 2500$ and batch 2 (End of August) is sold now for 1600$.
Bitmain is hardly hitting Obelisk with this move.
They may not be hitting with price, but they'll certainly be hitting with volume. |
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