D-Central Technologies · A workshop in Montreal, Quebec · Since 2016
Sovereignty is a thing you can hold.
Bitcoin mining taught us the craft. We build the rest of the stack the same way: open firmware, mesh, local AI, shrouds and heat you already paid for. Hand-built in Montreal, ASIC repair on the same bench, status on every project.
Send us a dead minerOpen source · Built to order in Montreal · Bitcoin (3% off), card, Klarna, Affirm · DOA and defect protection
The Bitaxe from $184.99 In stock
Mining is the anchor. Every layer around it removes one more thing you have to ask permission for.
Removes: needing anyone's permission to hold or to earn.
Bitaxe hub Solo miningRemoves: locked firmware and disposable hardware.
DCENT_OS ASIC repair Firmware comparisonRemoves: needing a vendor's permission for a piece of hardware to exist.
DCENT_axe Free STL filesRemoves: intelligence you can only rent, metered and logged.
Local LLM Canada LLM benchmarksRemoves: the platform that can delete you.
Nostr Self-hostingRemoves: the utility as your single point of failure.
Heat reuse Space heatersAimed at: the just-in-time supply chain. No object of ours yet, and we would rather show the empty column.
Seven layers. Start with the one that annoys you most.
467 products in the catalogue. Machines, heat, parts, and the objects we make ourselves.
Flagship · Open hardware
Bitcoin mining hardware, built in Montreal
The Bitaxe
Price range: $184.99 through $224.99 CAD
The smallest honest way into Bitcoin mining. Solo, open source, on your desk.
- Lineage
- Bitaxe / Open Source Miners United
- What it does
- Solo-mines Bitcoin on your own network
- Bigger sibling
- Bitaxe Hex, six chips, Price range: $389.99 through $479.99 CAD
- Availability
- In stock
Roughly nine tenths of this lineage is Skot's and the OSMU community's work. It says so on the page, and it will keep saying so.
Heat
Space Heater Edition
Your heater already runs all winter. This one pays part of the bill back.
Air
Shrouds and ducting
The shroud system: 72 SKUs, PETG black and orange, built to order. Fit, duct and quiet most ASICs. The STL files are free under CC BY-SA if you would rather print them.
Keys
SeedSigner DIY Kit
An air-gapped signing device you assemble yourself. Open hardware, no account, no radio. Mining is half of owning your money.Built to order in Montreal. Ships from Canada.
Repaired, not replaced.
Send us the machine. Chip-level diagnostics, hashboard work and firmware recovery in Montreal. We tell you what is wrong, what it costs, and whether it is worth fixing, before anything is touched.
We will tell you when a miner is not worth fixing. Thousands of miners have crossed this bench since 2016. Send yours.
Start a repair- 01
- Intake
- Fill the intake form. Ship the unit, or bring it to Montreal.
- 02
- Diagnose
- A full assessment from $65 CAD, applied to the repair if you go ahead.
- 03
- Quote
- A written quote first. If a board is not worth fixing, you pay the diagnostic only.
- 04
- Repair
- Hashboards, control boards and power supplies.
- 05
- Return
- Tested, then shipped back to you.
DCENT is a product prefix, not an abbreviation of the company name. We would rather publish the ledger than the press release. These labels mean the same thing on every page.
DCENT_Raven is a LoRa mesh accessory board for the Bitaxe lineage; DCENT_ExpansionPack is an expansion board for the same lineage. source public · hardware design published · no boards built or shipping. The designs are published. The hardware is not. Both halves of that sentence matter.
This is the workbench the next open mining board, mesh node, energy controller and food-resilience rig gets built on. Our agentic harness for reverse engineers. In development. Nothing yet. It is named here because it is one of the harnesses DCENT_ADE runs, and leaving it out would make that sentence untrue.
Standing on other people's work. We stand on work other people published first: Skot and the OSMU community for the Bitaxe lineage, Braiins for autotuning and the Stratum V2 specification, Meshtastic for the mesh, whisper.cpp and Parakeet for Voice, KiCad and mixelpixx's Konnect for Konduit. We name them because it is true.
The Bitcoin Mining Hacker manifesto
A licence you are not allowed to read. A fee you are not allowed to switch off. A bootloader you are not allowed to open. Intelligence you can only rent. None of it is physics. It is a design choice, and design choices can be reversed.
We reverse them one layer at a time. Mine your own money. Own the machine to its firmware. Build the next board yourself. Run models on your own silicon. Route around the network. Make the heat work twice.
Technology is a liberator or a master. We build the liberator.
Read the ten Mining Hacker principlesEvery review on this site was written by someone who bought the thing. We do not pay for reviews, we do not seed them, and we do not take down the ones that mention a problem.
“Awesome! Thank you! Super efficient! Keeping 1150sq/ft townhouse warm. Under 30W/TH steady!”
“Great product, bought one 2 months ago and worked juste as described. Just bought a second one. Exceptional service, thank you guys @ d-central.”
“I love it ❤️, Best Mini Bitcoin Miner for Home Crypto Miners... 500 gh/s hashrate & just using 12 watts of power. Thanks DCentral for this awesome Product.”
Bitcoin on-chain and Lightning · 3% off Visa Mastercard Klarna Affirm DOA and defect protection Built to order in Montreal
Built to order in Montreal. We are not fast. We deliver the best quality.
The store funds the code
The code is free. Keeping it free is not.
Research, reverse engineering, bench time and public releases get paid for two ways: you buy something we made by hand, or you fund the stack directly. Both keep the source free for everyone who never pays us a cent.
Monthly tiers, or once, by card or Bitcoin. Or buy something we made. It pays for the same bench.
- Keep the code free.
- Keep the tools alive.
- Fund the sovereign stack.
- Supporter · Contributor · Commercial Patron
The reference library is free and it is the biggest thing we own. No login, no email wall. Every row below opens its own index.
| Corpus | Published | Form |
|---|---|---|
| Miner profiles | 494 | Specs, power profiles, profitability |
| Error codes | 650 | Symptom, cause, fix steps |
| Glossary terms | 1,429 | Plain-language definitions |
| Troubleshooting guides | 141 | Bench procedures |
| Manuals | 33 | Manufacturer documentation |
| Articles | 1,280 | Research and build logs |
| Calculators | — | Profit, power, heat |
| Open datasets | 6 | CSV and JSON |
| Verified facts | — | Sourced, dated, citable |
| Public JSON API | dc/v1 | /wp-json/dc/v1/ |
Join the Bitcoin Mining Hackers
Build logs from the bench. New objects, firmware releases, solo block wins from the community, and the occasional honest post-mortem. Sent when there is something to show.