Step-by-step to Sovereignty & Lightning Network
The most comprehensive free Bitcoin course online. From blockchain basics to sovereign node operation — 45 lessons of expert content.
From zero to sovereign Bitcoiner in 5 structured courses
Blockchain, proof of work, transactions, and the monetary revolution.
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Seed phrases, hardware wallets, and taking control of your Bitcoin.
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ASIC mining, halving cycles, ETFs, and Bitcoin's economic forces.
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Run your own node, open channels, become Bitcoin infrastructure.
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CoinJoin, multisig, UTXO management, and inheritance planning.
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A firmware bug made some Coldcard devices generate weak, guessable seeds — and ~594 BTC was swept from ~500 wallets. Who is affected, and th…
Coin control in Sparrow lives in the UTXOs tab: turn on the UTXO view, label every coin by source, freeze tainted or dust UTXOs, and pre-sel…
Bitcoin Core vs Bitcoin Knots in 2026, explained without tribalism. Both run identical consensus rules — the choice is about relay policy. C…
Can a normal person buy bitcoin without ID, and is it safe and legal? Plain-language answer up top, then the real no-KYC options ranked by e…
Do Bitcoin ATMs require ID in 2026? Almost always yes — a phone number is universal and photo ID kicks in fast. Here are the real thresholds…
A decision page, not a buying guide. Given how much you hold, how you use it, and your risk, do you need a hardware wallet yet — or is a wel…
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