Building the open-source Bitcoin mining ecosystem. 501(c)3 public charity.

Nashville, TN
An open-source Bitcoin mining stack is inevitable. We welcome contributors and donors to support redefining the status-quo to keep Bitcoin decentralized and permission-less.
Bitcoin mining must be open-source or Bitcoin remains PERMISSIONED. Check out my deep dive on our work at the @256FOUNDATION to understand why we're commoditizing the building blocks of the mining stack and how we're best positioned to pull it off.
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New updates to our Hashdash UI for the 256 Foundation's Hydrapool instance, courtesy of @D_plus__plus Point some miners at pool.256foundation.org, use your npub or website and an awesome worker-name to join for a shot on the leaderboard!
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Bitcoin started as an open-source project. But miners split from nodes, advanced to ASICs and closed the door. Today it is inherently permissioned. A commoditized mining stack is necessary to return Bitcoin's decentralization and permissionlessness. 256foundation.org/newsroom/p…
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256 Red Team update: Our original 30 day disclosure window closes today. Every impacted party asked for an extension and is working with us in good faith. Findings will publish when the windows close. We will keep the public posted.
~90% of ASICs run one vendor's closed-source firmware. Almost nobody has audited it. We at @256FOUNDATION do. Introducing the 256 Red Team 🧵 — the 256 Foundation's firmware security program. On hardware we own, in an isolated lab, under coordinated disclosure.
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256 Foundation retweeted
special night at the Park hosting Mining Monday w/ @skot9000 and @ryankuester I think they have a really special workshop that can be hosted at other spaces/meetups or fundraising experiences. ton of ideas from tonight and met some really cool people. special TY to @protomining for making it happen 🙏
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We're thankful for @HRF's continued support of the 256 Foundation and our Core Projects. This grant will help us polish latest revisions and validate hardware while continuing Mujina Firmware development and ecosystem nurturing. 256foundation.org/newsroom/h…
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256 Foundation retweeted
Mujina is fully open-source mining firmware, with support coming for all manufacturer machines. Right now the firmware application is barebones, but that doesn't mean you can't take it, side-load it, and make your own UI & distribution image. We know barrier to entry is high right now, requiring SSH to install the firmware, but the snowball effect is underway! Thank you to all our generous supporters of the @256FOUNDATION
Flashed Mujina onto my S19k Pro. ±120 TH/s and every last hash belongs to me. Zero dev fee. That's the whole promise of open-source mining firmware, delivered. @256FOUNDATION deserves way more credit for keeping this stuff free, open-source, and permissionless.
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We appreciate HRF's continued support! Open-source mining inherently means open-source transaction settlement and issuance. This is critical for a private, permission-less, and censorship-resistant monetary system for the world.
🚨 @HRF’s Bitcoin Development Fund is granting more than 500 million sats to 16 freedom tech projects worldwide Bitcoin and Nostr development, self-custody, censorship-resistant comms, privacy tech, decentralized mining, and more 🧵 here on the killer projects we are funding:
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256 Foundation retweeted
Day 2 of the Kigali Bitcoin Developer Bootcamp was all about going deeper and getting hands on. 🇷🇼⚡ The morning kicked off with an open source Bitcoin mining experience, and it was a great one, especially as this was the first time we have introduced this session at one of our bootcamps. Using Mujina and BitAxe devices, @dzeg5 gave participants a deeper look at how Bitcoin mining works, and they even mined against Hydra Pool. We watched the transactions appear on mempool.space on our private Signet and saw the whole process come to life. A huge shoutout to the @256FOUNDATION for making this mining experience possible, and to @ryankuester for developing Mujina and helping make open source mining more accessible. 🙌 The afternoon was all about coding. Participants wrote Python scripts to query their Bitcoin nodes, retrieve and decode transactions, and explore how developers can interact directly with the Bitcoin network. We also looked at SegWit and multisig. Another packed day of learning, experimenting, and building. On to Day 3! 🔥
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We're excited to join this SV2 Working Group to further mining decentralized with client-side support in Mujina Firmware and server-side support in Hydrapool!
We’re pleased to welcome @256FOUNDATION to the Stratum V2 Working Group! Through their support for open-source projects like Mujina and HydraPool, they’re helping make SV2 more accessible to miners and pool operators everywhere.
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Red Team work doesn't stop at software. Auditing the mining stack requires hardware to test firmware. Reach out if you'd like to support!
A lot of you asked how the @256FOUNDATION Red Team actually tests closed-source mining firmware. The answer is real hardware. You can't audit what you can't run — so we run it. This is our control-board cage: miner brains on the bench, wired into an isolated lab network.
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256 Foundation retweeted
RED TEAM COMES TO BITCOIN MINING: 256 FOUNDATION AUDITS MINING FIRMWARE, FINDS THIRD-PARTY RISKS @256FOUNDATION has launched the 256 Red Team, a security program auditing ASIC mining firmware through reverse engineering, live traffic capture and share-level reconciliation. The team says it has filed 41 findings across stock Bitmain firmware and third-party alternatives including LuxOS, VNISH and Braiins OS. Among the issues found: unauthenticated factory APIs, paths to root access, default credentials, embedded vendor SSH keys and updates that fail to verify what they install. But the biggest surprise came from Bitmain. After decompiling its miner daemons and examining live connections, researchers say they found no evidence of hashrate skimming, remote kill switches or covert beacons in stock Bitmain firmware. Instead, the team says concerning hidden behavior was concentrated in third-party “optimized” firmware. Three responsible disclosures have already been submitted to VNISH, Luxor and Braiins, with researchers giving each 30 days to respond before publication. MicroBT, Canaan, Auradine, Bitdeer and ePIC are next on the bench.
~90% of ASICs run one vendor's closed-source firmware. Almost nobody has audited it. We at @256FOUNDATION do. Introducing the 256 Red Team 🧵 — the 256 Foundation's firmware security program. On hardware we own, in an isolated lab, under coordinated disclosure.
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256 Foundation retweeted
We're proud to support @256Foundation and the work they’re doing to protect Bitcoin mining from critical security vulnerabilities in ASIC firmware.
~90% of ASICs run one vendor's closed-source firmware. Almost nobody has audited it. We at @256FOUNDATION do. Introducing the 256 Red Team 🧵 — the 256 Foundation's firmware security program. On hardware we own, in an isolated lab, under coordinated disclosure.
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256 Foundation retweeted
we're all bitcoin red team 🟥
~90% of ASICs run one vendor's closed-source firmware. Almost nobody has audited it. We at @256FOUNDATION do. Introducing the 256 Red Team 🧵 — the 256 Foundation's firmware security program. On hardware we own, in an isolated lab, under coordinated disclosure.
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Bitcoin Red Team efforts are underway at the 256 Foundation, even on the primarily closed-source mining stack, thanks to powerful open-weight AI tools and decompilers. We've flagged initial findings to the respective parties.
~90% of ASICs run one vendor's closed-source firmware. Almost nobody has audited it. We at @256FOUNDATION do. Introducing the 256 Red Team 🧵 — the 256 Foundation's firmware security program. On hardware we own, in an isolated lab, under coordinated disclosure.
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Another ASIC miner now running on Mujina open-source mining firmware! You love to see it! Shout out to Aadhi for all his hard work. This is the power of a FOSS community project. Progress accelerates as we build on top of one another. 🫡
Mujina is now running on Canaan Nano 3S. I reverse engineered the miner , built the port, and made it open source. If you want the repo or installation instructions, hit me up. @canaanio & @canaaninamerica - I also applied for job . Figured I’d introduce myself properly. ⚡️⚡️
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