skot
@skot9000
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Electrical engineer working on open source #bitcoin mining hardware and firmware. Instigator of the Bitaxe Bitcoin ASIC miner.
North Carolina
Joined June 2008
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It's safe to say the bitaxeUltra is working! Single BM1366 ASIC (from the S19XP) running at 527 GH/s and 20 J/TH. Open source everything.
Massive props to the Open Source Miners United crew for figuring this one out!
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It's cloudy this morning, so I went for an indoor ride.. and put in that proof-of-work!
#TeamNerdMiner
#Bitcoin
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The sun came out behind the clouds for a bit this morning so I put it to work!
#TeamNerdMiner
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The latest version of the BitaxeUltra, version 204 has been released!
This version includes all the bugfixes and DFM improvements learned while getting over a thousand
#bitaxe
out there into the wild.
Huge thanks to
@Public_Pool_BTC
for manufacturing and validating this release.…
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I am honored and excited to receive an
@OpenSats
grant to further
#bitaxe
development! Together with the OSMU legion we're bringing open source
#bitcoin
mining to everyone.
Huge thanks to everyone at OpenSats and the donors that support. Y'ALL ARE HOW WE WIN.
OUR FOURTH WAVE OF NO STRINGS ATTACHED OPEN SOURCE BITCOIN GRANTS:
- Splicing in LDK
- Bitcoin Core Testing Suite
- BLAST
- Scaling Lightning
- Satsigner
- Firebolt
- The Bitaxe
- The Bitcoin LARP Game
- Braidpool
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A new Bitcoin mining ASIC manufacturer appears! with the ZetaGig Z1
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Get a
#Bitaxe
, get a
@FutureBit
Apollo II, get a Avalon Nano 3, get an old S9 or get a T21.. whatever you do, do it ASAP. And point it at an independent mining pool FFS (or solo mine).
#bitcoin
needs more independent miners.
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Interesting new experiment to control an Antminer hashboard (and PSU and fans) directly from a PC; The Bitcrane!
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Playing around with bitcart layout. It's starting to look like a real thing.
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The odds of winning the CA lottery "All 5 of 5" is 1 in 12.6M, per $2 ticket. Prize is about $712k.
The odds of solving a block with a bitaxe is 1 in 7.6M, per 0.36 kWh day. Prize is about $351k
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It's true; anyone can build and sell
#Bitaxe
-- that's part of being open source and permissionless.
I've put together the "Bitaxe Legit" list to highlight Bitaxe sellers that respect the open source license and community nature of the project:
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In case you missed it, the
#FlexAxe
is an open source, modular ASIC Bitcoin miner 😍. I’m telling ya, the OSMU crew is 🔥
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Cancelling Phoenix Wallet in the US sucks. The fact that this can even happen is a symptom of centralization. I think Bitcoin’s biggest risk is this same thing, via centralized miners and pools.
Open source fixes this.
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The aditBoard is a USB adapter for Antminer hashboards. It can be used with the upcoming Bitcart controlboard, or standalone with a PC. Open source hardware, and eventually firmware!
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When government-regulated mega miners are taking control over the Bitcoin network they won't announce it, but there will be signs.
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You can help protect Bitcoin freedom; mine it at home. Demand independent and open source.
Many will tell you it’s insignificant. That’s FUD.
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Top to bottom, point and click, self sovereign
#bitcoin
mining is live!
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This is huge, thank you for the encouragement
@SeedSigner
I’m a big fan of your work! I’d be happy to give you a bitaxe.
Let’s keep Bitcoin open source!
Solid take. Ignore naysayers and profit-motivated critics. Just keep building what you love
@skot9000
. If there 's a place to buy one of your miners or where I can otherwise support your work, please let me know.
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Two great tastes that taste great together! 🤯 excellent work
@BitMaker_
It's not finished but almost! 🧡
Merging the NerdMiner interface inside the
#bitaxe
project.
LVGL + ESP-IDF + ESPminer and a custom modified bitAxe board.
Never expected could took me that time 🤪
This will be also OpenSource.
Waiting for the last boards to say we got it 😃
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Super excited to announce the next major release of esp-miner, the
#bitaxe
firmware! OTA updates, configuration over WiFi or API and more!
Absolutely amazing work by
@johnny9dev
@Public_Pool_BTC
and the rest of the OSMU crew!!
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It was raining pretty hard here the other day, but I got lucky: according to ordinal theory I got one of the first ever drops of water from the Atlantic Ocean. I’m willing to sell — serious offers only.
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#bitaxe
dev
@johnny9dev
pointed this out to me yesterday, and I think it sums up the motivation nicely;
"
#bitcoin
mining machines are arguably the most important piece of hardware in the bitcoin ecosystem, and yet their design is a secret"
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Bitcoin mining centralization is a direct result of it becoming an investment. Fiat investors need low variance returns, and that's only something the largest pools can provide.
That's not ever going away, but we can counterbalance it through a healthy ecosystem of home mining…
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Bitcrane v2, the USB Antminer controlboard is alive! This revision fixes a few bugs in v1 and adds support for 3 hashboards.
Run your miner firmware from the comfort of a PC 😎
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@BitMaker_
Hash Freq: 475MHz
Hash Rate (5s): 383.8GH/s
Fan Speed: 3938 RPM
Chip Temp: 66.25 C
Input Voltage: 4811.25 mV
Power: 12490.00 mW
Vcore: 1411 mV
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Inspired by an awesome conversation I just had with
@TheCoinDad
, here is my personal
#Bitcoin
miner design museum!
This is a little over 3 years of screwing around:
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Very excited to have the first release of esp-miner! This is a fully open source
#bitcoin
miner firmware for the
#bitaxe
ASIC miner. A massive effort by
@johnny9dev
@lninsights
and more!
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The good news is that this is an open source design. So if the bitaxe economics don't work out for you in your specific situation, now you have the starting point to make a machine that does.
If you intend to buy a bunch of miners and set them up in a big 24/7 grid-connected…
Bitaxe board 95$
They say the chip is 15$
So thats 110$ + shipping
$208.72+shipping per TH and you will make less than 3 cents a day revenue.
Fun if you want to tinker but don’t pretend like this is a game changer or an investment. It is a hobby toy.
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There is no red and there is no blue, there is the state and there is you.
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If you don't like how mining pools operate, solo mine to your own node. You can do it; Bitcoin is specifically designed to allow it.
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Every now and then I run into people who are not aware of this, so here is your regular reminder;
Braiins has closed source their firmware.
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Here we go; the S21 features the BM1368PB!!
@checksum0
wins another miner hacker gold star — the first person to take the heatsink off and get an ASIC shot!
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I hope this is the open source Bitcoin ASIC mining breakthrough that enables real practical home mining!
👀👀👀 home mining breakthrough?
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> Respondents to the Form EIA-862 who are required to complete this form are all *commercial* cryptocurrency
mining facilities in the United States.
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Open source is the way.
“Do not covet your ideas. Give away what you know and more will come back to you.” -Paul Arden
The only problem now is too many good ideas have come back and not enough time!
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This was a grim prospect just a few months ago. Mining commentators repeated “won’t work” ad nauseam online. Any curiosity was shut down as “don’t try, not profitable”.
Then along comes
@52544B
and spins up 4
#bitaxe
and a Nerdminer solo mining to his own
@umbrel
node.
@Public_Pool_BTC
@umbrel
and
@skot9000
thank you for making solo mining possible... Very cool stuff!
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Give this a try yourself, it's not hard!
NerdMiner v2 Firmware:
LILYGO T-Display-S3: (make sure to get the ESP32-S3 one)
20W 5V solar panel:
And a USB-A to USB-C cable.
#TeamNerdMiner
#Bitcoin
The sun came out behind the clouds for a bit this morning so I put it to work!
#TeamNerdMiner
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If you've been away for a day or two you might not have heard, but open source bitcoin miners are getting pretty rad:
First half of
#Flex4Axe
's casing. Coincidentally found the perfect U-shaped plexiglass. Cooling is good now, let's see if I can lower the fan speed and keep my 7.2TH 🤞
@osmu_global
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Bitcrane v1 had a couple small HW bugs. Fixed those in v2 and added two more hashboard connectors!
Switched to all 0805 passives for easier assembly.
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I forgot my bank password and lost my money. No, actually that didn’t happen, PayPal just terminated my account and can’t tell me why.
(Yes, this happened to me)
I forgot my bank password and lost my entire net worth. No, actually, that didn't happen, because banks work and bitcoin doesn't.
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Fun story: My in-laws had their recent model Subaru stolen in CA. They called the police who suggested they call OnStar. "But we don't have OnStar, how's that going to work?" they thought. Well they called OnStar anyways and guess what, OnStar was able to "enable" tracking and…
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A single custodian now controls the coinbase addresses of at least 9 pools, representing 47% of total hashrate.
As demonstrated by this consolidation of mining reward outputs from AntPool, F2Pool, Binance Pool, Braiins, btccom, SECPOOL and Poolin:
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Public-Pool exists for all the right reasons. Bitcoiners should check it out!
First person to find a trillion difficulty or better on public-pool gets a free Bitaxe.
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An open source thermostat to control your Bitcoin mining machine! This is good stuff.
Proud to share that we have shipped out first batch of HeatMines to
@CryptoCloaks
Visit for details
We are selling for $40. But this is FOSS. You can make your own too. We can also just sell the components that we purchased at volume discounts.
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This is why we need to decentralize away from the mega pools/miners. No one entity should have enough network hash rate to reliably offer this service.
Introducing Slipstream: a direct transaction submission service on
#Bitcoin
, powered by Marathon.
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I don’t know why Bitmain charges so much for these ASICs. Anyone can do this at home with some rocks and a crockpot.
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This is a standalone, Wi-Fi miner! The USB port is just there to update the ESP32 firmware if needed. USB isn't used for mining at all.
It's safe to say the bitaxeUltra is working! Single BM1366 ASIC (from the S19XP) running at 527 GH/s and 20 J/TH. Open source everything.
Massive props to the Open Source Miners United crew for figuring this one out!
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Everyone, and I truly mean everyone, should be able to run a miner at home because if you can’t run a miner at home, how are you going to be able to tell people on Twitter that you run a miner at home?
#bitaxe
Everyone, and I truly mean everyone, should be able to run a node at home because if you can’t run a node at home, how are you going to be able to tell people on Twitter that you run a node at home?
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Love to see people doing mods and upgrades! This is how we win.
Also the black soldermask looks great!
Testing some of the latest changes we've made to the Bitaxe BM1397 build. If all goes well, we will publish the update on Github 🫡
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Bitcoin mining 0.1: Satoshi and a few pals running open source Bitcoin mining at home.
Bitcoin mining 4.0: Satoshi’s few billion pals running open source Bitcoin mining at home.
Bitcoin mining 1.0: hosted ASICs at 3rd party data centers (in China)
Bitcoin mining 2.0: proprietary data centers, vertically-integrated with the energy source (owning the substation, behind-the-fence PPA, or the energy resource itself)
Bitcoin mining 3.0: bitcoin mining as a…
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Did you know that despite being able to run hundreds of billions of SHA256 hash calculations a second, Bitcoin mining ASICs (the chips) cannot output the results of a single one?
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The bitaxe firmware, esp-miner has been getting some massive upgrades lately thanks to the awesome work of
@Public_Pool_BTC
!!
I think most non-developers can now ditch the tag-connect cables! Realtime logs.
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I’m glad that when the central bank essentially told Satoshi to “cry harder” he responded GFY and made an open source, permissionless, decentralized replacement for their sorry asses.
Rise up anons.
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Super clean build! Looking good.
Slightly different approach to
#bitaxe
stacking, a small test lab with 2xUltra and 2xSupra, with a relaxed 3Th/s... actually already seen a burst of up to 3.8Th/s.
#OpenSource
is awesome!
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HACK. THE. PLANET!
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Part of the sale from most
#Bitaxe
sellers and all of the OSMU Discord subscription profit go towards funding the development of Open Source Bitcoin Mining. 💪
Thank you
@osmu_global
for the appreciation of my work and the generous donation! 🤗🥰 Perfectly timed for the (many 🥴) ASICs for the
#0xAxe
. Everything I learned from the
#Flex4Axe
,
#QAxe
, ... went into this. Let's hope it works 🤞Target is 7.2TH/s with 200W and TR4/SP3 cooler
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I have no idea what ETH is, but I do know that you can’t run your own node, and it’s “secured” by the people who have the most of it, namely the investors, thanks to a massive premine.
I have no idea what ETH is, but I do know it is completely centralized and captured. It is the embodiment of terrible software engineering wrapped in a LARP.
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We couldn't do it without you
@DCentralTech
! From the very beginning your support and contributions have enabled this 👊
hack the planet!
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There are over a billion Bitcoin mining ASICs (the chips) powered on and running right now🤯
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Yes, a single bitaxe has a minuscule hashrate. But you thought we’re going stop there?? Couldn’t stop this even if I wanted to.
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If you think the attack surface introduced by a global group of open source devs is scary, you should check out what a small team of proprietary closed source devs can do!
Microsoft engineer: 500ms lag in liblzma? Something's up.
Also Microsoft engineer: 45 minute lag in Microsoft Teams? Perfect.
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@olddutchman47
Working on a 6 chip version right now! It's called the "bitaxeHex". That should be roughly 3TH/s and 60W
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REJECT MINING CENTRALIZATION
Looking at the merkle branches that mining pools send to miners as part of stratum jobs, it's clear that the BTCcom pool, Binance pool, Poolin, EMCD, Rawpool, and possibly Braiins* have exactly the same template and custom transaction prioritization as AntPool.
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People like to pretend they're badass investoors and say things like "Oh, but what's the ROI on a
#bitaxe
" or "What's the $/TH??" 😂
Check out this rad Batman LEGO.
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When I started mining at home I was surprised that there was no easy way to run my own pool, or even a simple stratum server on my node. Really excited to see this is changing!
Massive props to
@Public_Pool_BTC
for initiating this, and super cool to see
@sethforprivacy
running…
Working on publishing proper, regularly updated Docker images + a guide for
@Public_Pool_BTC
to make it easier for anyone who runs a Bitcoin node to run their own pool 👀
Bitcoin deserves more small, driven, accessible pools, and anyone should be able to spin one up in minutes.
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@bitcoinlimit
$250 is a reasonable start. Prices will come down eventually. I will say that people have a distorted sense of what electronics cost because they are used to buying products mass produced overseas by enormous corporations.
The good news here is that if you disagree with this…
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Hey
@SwanBitcoin
and/or
@Strike
how about a
#Bitcoin
purchase method that goes *directly* to my (self-custody) external wallet once it clears?
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This is one of the many reason why I ❤️
#nerdminer
!
ROI Bros take note;
Investment: $20-ish
Return: ♾️
Educating with
#Bitcoin
tools is great, you can see how amazed the children in El Salvador are setting up a
#nerdminer
by
@BitMaker_
This is a Bitcoin only education, with the support of
@EducacionSV
@bitcoinofficesv
@DecouvreBitcoin
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Closed source / Proprietary / Patented is zero protection from this. You’ll go bankrupt from lawyer fees and still lose. In fact, open source is your best chance to get ahead and stay ahead.
#bitcoin
is open source.
@dtvelectronics
@Public_Pool_BTC
@skot9000
@ClueWant
@AliExpress_EN
There is nothing you can legally do about it. You open source it they’re free to modify it n essentially put you out of business. They don’t even really have to modify it can just duplicate it. Can’t really license something that’s freely available idk how you’d enforce it.
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Miners aren’t solving difficult math problems. We’re brute forcing for solutions to an impossible problem.
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