Building the open-source Bitcoin mining stack.
→ Core Projects
One company controls Bitcoin's mining infrastructure. We fund developers dismantling it — open hardware, firmware, and pool software that anyone can use, audit, and build upon.
Fund the Mission
Bitcoin on-chain, Lightning, or credit card via Zaprite. 100% passthrough — every satoshi goes directly to developers. Tax-deductible 501(c)(3).
Donate Hashrate
Point your Bitcoin miner at our Hydrapool instance. If we find a block, all proceeds go to the foundation. Every hash counts toward open-source mining.
An open protocol should be accessible to anyone at all layers.
One large, antagonistic Bitcoin mining company has achieved near-total control over the hardware and software that keeps Bitcoin running. They have blocked innovation, denied collaboration, and created a single point of failure in Bitcoin's security model.
The 256 Foundation exists to dismantle this proprietary empire — by funding the open-source Bitcoin mining stack that anyone can use, audit, modify, and build upon. We believe every layer of Bitcoin infrastructure should be free and open.
Read Our Full Mission“Every layer of Bitcoin infrastructure should be free and open.”
The Open-Source Stack
Four core grants building every layer — from silicon to pool software.

Ember One
Open-source Bitcoin mining hashboard reference design

Mujina
The Linux kernel of Bitcoin mining firmware

Libre Board
Open-source hardware Bitcoin miner control board

Hydrapool
One-click deployable open-source Bitcoin mining pool
On our very first Telehash event — an 8-hour community livestream — miners around the world pointed their hashrate to our pool. Against the odds, we found a block and raised the initial funding that launched the 256 Foundation.
Learn About Telehash →News & Updates
Newsletter

Assembling Freedom #25
Touchscreens, Thermostats, and Doom: A Weekend of Open Mining Hacks

Assembling Freedom #24 - Bitcoin Mining Renaissance: Stratum V2, Nonce Space, and the DIY Miner Comeback
From POD256 Episode #112 – Tailored for Tech Enthusiasts April 15, 2026 (Comply or Die on Tax Day Edition)

Assembling Freedom #23
From POD256 ep111: Open-Source Overdrive: Mujina Breakthroughs, Public Pool’s First Block, and LibreBoard v3
POD256 Podcast
The weekly 256 Foundation team podcast covering open-source mining developments, project updates, and conversations with the builders shaping the future of Bitcoin mining.
Available on Fountain, Spotify, Apple Podcasts, and more.
Get project updates, grant announcements, and mining ecosystem news delivered to your inbox.
Building something for open-source Bitcoin mining?
We fund developers and researchers working on open hardware, firmware, pool software, educational resources, and tooling. All funded work must be released under an approved open-source license.
Join the
Network
Connect with builders, miners, and advocates worldwide.
Community Projects Under Our Umbrella
The 256 Foundation doesn't just fund development — it serves as a connective layer for the broader open-source Bitcoin mining ecosystem. We've brought several community-led projects under our organizational umbrella so they have the infrastructure, visibility, and support to grow — while remaining fully and community-led.
These projects share our conviction that Bitcoin's mining layer must be open, distributed, and accessible to anyone. Together, we're building the full stack — from the chips and boards, to the firmware and pool software, to the homes and businesses running miners around the world.

Bitaxe
The first open-source Bitcoin ASIC miner.
Bitaxe is the world's first fully open-source Bitcoin ASIC miner — open hardware, open firmware, open everything. Anyone can build one, modify it, or manufacture it. Bitaxe devices bring solo Bitcoin mining back to individuals with a device that fits in your hand.
Bitaxe is the embodiment of what the 256 Foundation supports: open-source hardware and software that breaks the proprietary mining monopoly and puts ASIC mining back in the hands of individuals.

Open Source Miners United
The open-source hardware & firmware community.
OSMU is a global community of developers and builders creating and modifying open-source Bitcoin mining hardware and software. Projects include Bitaxe, NerdAxe, Bitcrane, AxeOS, Piaxe, Qaxe, and more — fully open designs that anyone can build, change, and improve.
OSMU represents exactly what the 256 Foundation exists to encourage: a decentralized, permissionless community that puts the tools of Bitcoin mining back in the hands of individuals.

Hashrate Heatpunks
Mining heat is a product, not a problem.
Hashrate Heatpunks marry the Bitcoin mining and heating sectors to accelerate adoption of hashrate heating — building the standards, education, and infrastructure needed to bring mining back to homes and businesses.
Distributed, utility-based hashrate is one of the most powerful forces for Bitcoin decentralization. Heatpunks tackle the biggest barriers to home mining — wasted heat & profitability — by reframing it as a feature.

Jua Kali
Open-source mining for direct DC power.
Jua Kali — Kiswahili for "hot sun," used in Kenya to mean blue-collar, hard-working craftsmanship — is an open-source project that runs Bitcoin ASIC hashboards directly from DC power sources like solar panels and batteries, no AC grid required.
Most of the world lacks reliable grid power. Jua Kali unlocks stranded energy for Bitcoin mining — enabling off-grid communities to participate in securing the network using direct solar or battery power.

ASIC-rs
Open-source Rust library for Bitcoin ASIC communication.
ASIC-rs is an open-source Rust library for communicating with Bitcoin mining ASICs. It standardizes the low-level protocol interface so firmware developers can build miner software without reverse-engineering proprietary hardware layers.
A well-documented, openly licensed library for speaking to ASICs is a critical missing piece in the open mining stack. ASIC-rs fills that gap — enabling Mujina and future open firmware projects to run without closed dependencies.

HashScope
Open-source Bitcoin mining protocol analyzer and pool testing platform.
HashScope sits transparently between miners and pools, capturing every Stratum v1 message in real time. It parses JSON-RPC traffic, tracks sessions, and distributes share events to a scalable agent fleet via Nostr — providing a complete picture of how mining pools actually behave.
You cannot improve what you cannot measure. HashScope gives the open-source mining community a dedicated tool for auditing pool behavior and exposing protocol-level issues — without depending on proprietary observability software.
Community Backers
The individuals and organizations fueling the open-source mining revolution.
Want your logo here? Support the open-source Bitcoin mining stack.
Become a SupporterLive Hashrate Donors
View Full Dashboard →Common Questions
See all FAQs →What does the 256 Foundation do?
256 Foundation (EIN: 99-1662333) is a 501(c)(3) public charity which funds free and open-source Bitcoin mining related initiatives and provides education resources to demystify Bitcoin and freedom tech.
We believe Bitcoin mining has become dangerously centralized in several aspects: hardware and firmware centralization controlled by one Chinese company with ~90% market dominance, mining pool centralization with ~90% of global hashrate controlled by four mining pool operators and their proxies, and mining reward centralization with ~40% of bitcoin mining rewards going to a single custodian. Our mission is to dismantle the proprietary mining empire and that starts with open-sourcing the whole Bitcoin mining stack. Our first four grant initiatives were for a standardized open-source hashboard, an open-source control board, open-source firmware, and an open-source one-click deployable mining pool. The development will not stop until Bitcoin mining is free and open.
How much of my donation goes towards open-source contributors?
100% of the donations made to the General Fund go to support the individuals working directly on the open-source Bitcoin mining related initiatives. There is no cut taken for administrative costs nor for board members.
Who can apply for a grant?
Any developer, hardware engineer, or researcher working on open-source Bitcoin mining hardware or software can apply for an Open Grant. We accept applications at any time — applications are reviewed when a grant cycle opens. All funded projects must be released under a recognized open-source license (OSI for software, OSHWA for hardware).
How can I donate to the 256 Foundation?
You can donate in two ways: financially (Bitcoin on-chain, Lightning, or credit/debit card via our Zaprite donation page) or by donating your mining hashrate (point your Bitcoin miner to our Hydrapool instance at pool.256foundation.org:3333).
Contact Us
Have a question or want to get involved? We'd love to hear from you.

















