D-Central Technologies · Montreal, Quebec · On the bench since 2016
We are the Montreal workshop that builds, repairs and frees Bitcoin mining hardware. Bitcoin defends the monetary layer, and ten years of it taught us the craft. We build the same way for the layers around it — communications, data, compute, devices, energy, food.
Open source · Built to order in Montreal · Bitcoin accepted, 3% off · DOA and defect protection
Thousands of ASIC miners have crossed it since 2016. Chip-level diagnostics, board-level micro-soldering, firmware recovery, thermal service. Antminer, Whatsminer, Avalon and the rest.
We will tell you when a miner is not worth fixing.
That sentence costs D-Central work, and it is the reason people ship us the machine nobody else would touch. A written quote comes first. If the board cannot be saved, you pay the diagnostic and nothing else.
Hashboard-level work Repaired, not replaced
467 products in the D-Central catalogue, built to order in Montreal. Machines, heat, parts, and the objects we make ourselves.
Flagship · Open hardware
from $184.99 In stock
The smallest honest way into Bitcoin mining. Solo, open source, on your desk.
Roughly nine tenths of this lineage is Skot's and the OSMU community's work. We name them here because it is true.
Heat
Space Heater Edition
Your heater already runs all winter. This one pays part of the bill back.
Air
Shrouds and ducting
93 shroud and adapter SKUs in PETG, black and orange. The STL files are free under CC BY-SA.
Keys
SeedSigner DIY Kit
An air-gapped signing device you assemble yourself. No account, no radio.
03 · 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.
Technology is a liberator or a master. We build the liberator.
Read the ten Mining Hacker principles
The sovereign layers
Bitcoin defends the monetary layer. Mesh defends the communication layer. It does not stop there. Every layer here is drawn at the size we have actually built it.
Montreal · on the bench since 2016
No login, no email wall, nothing behind a paywall. Ten years of bench notes, published error by error, whether or not you ever buy anything from us.
“The control board powered the hashboard, started its boot-time inventory, and could not read the per-board EEPROM that stores chip count, voltage-domain map, factory calibration, and model identifier.”
One of 650 error codes. Every one has a page like this.
Open datasets and a public JSON API at /wp-json/dc/v1/
DCENT_OS, our open Antminer firmware, is GPL-3.0 and in public beta: no dev fee, mining-proven on the Antminer S9 and Antminer S19j Pro. An optional donation ships on at 2% and switches off in one click. Every project carrying the DCENT prefix publishes its own licence, source and status.
Read the ledgerReviews · Not paid for, not seeded, not taken down
“A great way to heat your feet and earn some Bitcoin!”
“Awesome! Thank you! Super efficient! Keeping 1150sq/ft townhouse warm. Under 30W/TH steady!”
21 published · 16 verified buyers · no aggregate rating
Keep the code free. Keep the tools alive. Fund the sovereign stack.
Research, reverse engineering, bench time and public releases get paid 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.
Fund the sovereign stack