The Bitcoin Hardware Journal

Practical guides, hardware insights, and education for Bitcoin mining, nodes, self-custody, home servers, and more.

Open-source Bitcoin mining firmware source code from the Bitfortun BS-1 repository, main/history.cpp lines 152 to 165, with line 157 adding 400 to a freshly allocated hashrate buffer

The Case for Open-Source Bitcoin Mining Firmware

September 10, 2026 / September 10, 2026 by Matt Howard

Open-source Bitcoin mining firmware is the only kind you can verify, and verification is the whole point of Bitcoin. In September 2026 a community review of the newly published Bitfortun BS-1 source found a hard-coded +400 GH/s added to the hashrate shown on the device screen, a 7.8% inflation on a miner sold as 5.5 […]

firmware open source firmware

Unbranded black shipping box with the address on its label covered by black tape, next to a smartphone showing an incoming call labeled Hardware Wallet Support and an opened envelope holding a fake wallet verification letter with a QR code asking for a 24-word seed phrase, illustrating how leaked shipping data fuels AI-driven attacks on bitcoin holders

How AI Is Coming for Your Bitcoin in 2026

September 9, 2026 / September 10, 2026 by Matt Howard

AI is coming for your bitcoin in two ways. First, attackers now run frontier AI models over open-source wallet firmware to find bugs humans missed for years. Second, AI makes phishing and voice cloning cheap enough to aim at every name in a leaked customer list, and those lists keep leaking from shipping partners, email […]

AI bitcoin security data breach hardware wallets phishing self-custody

SeedSigner+, Blockstream Jade Plus, and Foundation Passport Prime hardware wallets on a workbench with a stainless steel seed phrase backup plate, electric engraving pen, five red casino dice, and Entropia v2 seed word tablets

How to Protect Your Bitcoin in 2026: A Practical Guide

September 8, 2026 / September 9, 2026 by Matt Howard

To protect your bitcoin in 2026, do five things: hold your own keys on a hardware wallet, generate the seed with randomness you supplied yourself, back it up in steel in more than one place, verify every address on the device screen, and keep quiet about what you own. Those five steps cover every major […]

bitcoin security self-custody

Entropia v2 seed phrase entropy tablets in an orange bowl beside a red six-sided casino die, a black eight-sided die, and a black sixteen-sided die on a dark work mat

Seed Phrase Entropy Explained: Dice, Tablets, and Your Keys

September 7, 2026 / September 10, 2026 by Matt Howard

Bitcoin entropy is the randomness used to create your seed phrase, and it is the only thing standing between your coins and anyone with a computer. A 12-word seed needs 128 bits of it; a 24-word seed needs 256. If the source of that randomness is weak or predictable, your keys can be recreated without […]

Coldcard entropy bug dice seed generation seed phrase entropy

Bitaxe Naja Duo BM1373 Bitcoin solo miner running 4,748 GH/s at 41.9W with fan spinning, LCD showing live AxeOS dashboard

Bitaxe News Products

Bitaxe Naja Duo Breaks the Single Digit Efficiency Barrier with two BM1373 ASIC Chips.

August 25, 2026 / September 7, 2026 by Matt Howard

The Bitaxe Naja Duo is the first Bitaxe built on Bitmain’s 3nm BM1373 ASIC, and it resets the efficiency ceiling for open-source home mining. Released exclusively through Solo Satoshi in August 2026, the Naja Duo (1201 model) produces 4.4 TH/s at 42 watts, with a stock efficiency of 9.5 J/TH. Efficiency, measured in joules per […]

bitaxe Bitaxe Naja Duo BM1373 ASIC

Solo Satoshi storefront in Conroe, Texas, the first physical Bitcoin hardware store in the state, featuring a clean modern black metal building with a Bitcoin-orange awning over the entry

Solo Satoshi to Open First Bitcoin Hardware Store in Texas

May 1, 2026 by Matt Howard

Solo Satoshi has officially acquired its first storefront and warehouse, located 40 miles north of Houston, in Conroe, Texas. When the doors open to the public in late Q3 2026, it will become the first physical Bitcoin hardware store in the state of Texas. The 3,000 square foot space is being built out now, and […]

first bitcoin hardware store Texas Solo Satoshi retail location