Braiins

Rent bitcoin (SHA-256) hashrates, no miners of your own required. Choose the speed, pool and term. Delivery is guaranteed from 1 PH/s to 2 EH/s for 1 week to 2 months. Create a Contract by 30 September, midnight UTC, and the reservation fee is 0% whenever you cancel. You pay only for the hashrate delivered. Create a Contract.

You don’t have to hit a solo block to win. Every month, the top 3 shares of rented hashrate on Braiins Solo split a $1,000 prize. Congratulations to August's winners! September is on. Happy block hunting 🫡

INTRODUCING: Mobile Block Hunting 💥 Everything you need to solo mine on the go. • Monitor hashrate • Track your best share • Rent hashrate instantly Now available on iOS and Android.

Braiins OS. Ethernet. Southwest Airlines. Messi’s first contract with FC Barcelona. What do they all have in common? They all started with a napkin. Eight years ago, our co-founder Jan Čapek was sitting in a Prague restaurant with his baby son and Marian, our ASIC/FPGA guru. They wanted to give the stock firmware monopoly some real competition. Beer in one hand, baby in the other, Jan started sketching how their own firmware could work. “Tough beginnings, I would say,” Jan recalls. One month later, Braiins OS was released. Eight years on, Braiins OS runs on 3 GW+ of machines, helping their owners mine more bitcoin. Here’s to many more 🍻🍼 🟣 Braiins.com

We’re expanding beyond Bitmain. Avalon hardware is already hashing with Braiins OS in early stages. Join the waitlist, help us test it, and get a better price at launch: https://braiins.com/contact-sales

Come find us if you’re at either event. We have more to announce this week 👀

📣 Braiins Toolbox 26.08 is out This release brings a faster device list, support for more miners, and a native Apple Silicon build. What’s new: 1️⃣ Faster device list. Filtering, sorting, and search now happen on the backend and update live. This keeps Toolbox responsive even with large fleets. 2️⃣ More miner support. Toolbox now supports Auradine Teraflux miners and Antminers running MARAFW in both the CLI and GUI. 3️⃣ Native Apple Silicon build. Toolbox now runs natively on M-series Macs. 4️⃣ Better scans. You can cancel a scan before it finishes. Scans also no longer conflict with actions already running on the same devices. 🍏 Mac users: Toolbox 26.08 supports Apple Silicon only. Existing macOS installations cannot detect this release through the in-app updater, so download the new build manually. Intel Macs are no longer supported. Download Braiins Toolbox for free 🔥

UPGRADE: Braiins OS 26.08 is live 💥 New hashboard health view, redesigned graphs, and support for the S21++. 1️⃣ Hashboard health overview • New table shows the health of every hashboard at a glance • Chip level data for each board, no digging through logs • Spot a failing board before it costs you hashrate 2️⃣ Redesigned dashboard graphs • History now persists, so you can look back instead of starting from zero • Time range selector from 10 minutes up to 7 days • New power graph and a new overall status graph 3️⃣ New hardware support • Antminer S21++ • Antminer S19j XP hashboard variant BHB56807 4️⃣ Miner status reporting. The GUI and Public API now tell you why a miner is stopped, starting, or stopping. No more guessing. 5️⃣ Refitted power and efficiency models for the S19 XP Hyd, S19 XP+ Hyd, S19 Pro+ Hyd and U3S21EXPH. These miners will retune after upgrading to pick up the new optimizations. 🟣 Get Braiins OS today: 🟣 Contact sales for help with deployment or pricing.

INTRODUCING: Guaranteed Delivery Hashrate Contracts ⚡️ Rent SHA-256 hashrate without bidding or constant monitoring. • Choose your speed, pool, and term (1 week to 2 months) • Stable pricing (daily FPPS price plus a fixed premium) • Top up as you go (no need to fund the full contract upfront) • Cancel anytime (reservation fee applies) Set the delivery. The market keeps it filled for the full term. Create your first contract on Braiins Hashpower.

Did Braiins spam bitcoin? Since 2010, our job has been simple: help miners mine more bitcoin. But every once in a while, we’ve used a block to mark something worth remembering: 668,634 · Clubhouse 31/Jan/2021 I am a supporter of Bitcoin ... Elon Musk 671,176 · 18/Feb/2021 NASA Perseverance and Ingenuity landed on Mars 686,604 · Diario El Salvador 6/Jun/2021 Bitcoin tendra validez legal 785,389 · This block was mined by a zero emission bitcoin mining computer. 824,131 · Happy 15th birthday, Bitcoin! Then our CMO, Kristian, made one personal. 883,395 · Will you be my queen, Summer? Her answer: 885,166 · 883,395 - YES Congratulations, Kristian and Summer. Block 883,395 will always be one of our favorites 🧡

Hashrate as a service keeps growing 💥 Since launch in January: • 2k+ users deploying hashrate • 40k+ orders placed • 90+ BTC of rented hashrate So we're expanding the supply again: 3 EH/s → 🟧 now 5 EH/s 🟧 Rent hashrate today. Deploy it anywhere.

Braiins OS now installs on more machines than ever ⤵️ Custom firmware installation on Antminers running stock firmware from September 2025 and later is now unlocked in Braiins Toolbox. No extra steps. One-click batch install across your entire fleet. 🔓UNLOCK YOUR FLEET - More hashrate on any power limit without additional capex - Advanced features: autotuning, DPS, Stratum V2, and more braiins.com/os-firmware 🤝NEED HELP? Our team is one message away. Get in touch.

Braiins Pool Networking Outage ⚠️ We're experiencing partial networking issues with our hosting provider, causing the Pool website to fail to load. Share collection is not affected; mining continues as normal. We don't have a timeframe yet, and this may delay payouts for today. We'll update you as soon as the issue is resolved.

You don’t have to hit a solo block to win. Every month, the top 3 shares of rented hashrate on Braiins Solo split a $1,000 prize. Congratulations to July’s winners! August is on. Happy block hunting 🫡

Off-Grid mining is seriously cool. Today’s case study comes from Barefoot Mining. They run 10+ off-grid sites across the US where power is limited, temperatures are extreme, and machine repairs can mean long trips to remote locations. This is exactly where running the right firmware matters. Barefoot tested Braiins OS on S19J Pro+ hardware at one site. ⚡️ After experiencing the performance gains, they rolled Braiins OS out across all of their sites. Braiins OS helped them: • Control power use per machine • Keep miners hashing optimally in high heat • Shut off damaged hashboards while keeping the machine online with the good hashboards 🟧 In simple terms, Braiins OS helped Barefoot mine more bitcoin without buying new machines or upgrading site infrastructure. Read the full case study for more on how Barefoot keeps its remote sites hashing with Braiins OS, and how Braiins OS could do the same for yours: Read the full case study here.

Our CEO Eli Nagar is talking Bitcoin security in a post-quantum world. Hear our take on Bitcoin's next era. See you tomorrow at the Energy Investors Forum.

INTRODUCING: Price Adapt Every miner model has a different sweet spot. Price Adapt finds it, hour by hour. 🟧 Up to +22.9% estimated profitability uplift on Antminer S21 XP. Price Adapt in Braiins Manager automatically finds the most profitable power target based on day-ahead electricity prices, hashprice, and your miner’s efficiency curve. • ERCOT & PJM support • Automatic curtailment for all devices • Automatic power target optimization for supported Braiins OS machines Free Early Access is available through September 30. One less thing to babysit ⤵️

INTRODUCING: Price Adapt Every miner model has a different sweet spot. Price Adapt finds it, hour by hour. 🟧 Up to +22.9% estimated profitability uplift on Antminer S21 XP. Price Adapt in Braiins Manager automatically finds the most profitable power target based on day-ahead electricity prices, hashprice, and your miner’s efficiency curve. • ERCOT & PJM support • Automatic curtailment for all devices • Automatic power target optimization for supported Braiins OS machines Free Early Access is available through September 30. One less thing to babysit ⤵️

💥 Another solo block found using rented hashrate! • Winning hash: 400T, 3.15× network difficulty 🤯 • Block: 958527 • Hashrate rented: 360 PH/s • Spend: nearly 0.07 BTC (~$4.5K) • Chance: ~2.2% (1 in 46) • Runtime: 9h 18m Get Hashpower today.

Braiins team is heading to Miami for Mining Disrupt. If you want to mine more bitcoin, come find us at booth 68. Firmware, pool, fleet management, sourcing all of it.