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Bitcoin education, practical guides and sourced news. Explore wallets, self-custody, Lightning and the people building the ecosystem.

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This week in Bitcoin

All news

  1. Meanwhile raises $37.5m for bitcoin life insurance

  2. Ledger warns CryptoBilis buyers after reported wallet drains

  3. CFTC opens rulemaking for leveraged bitcoin trading

  4. FinCEN withdraws wallet and mixing proposals

The library

Browse everything

Explainers

22

What a thing is, assuming nothing. Start here if the words are new.

  1. What is Bitcoin transaction locktime?
  2. What is a dust output?
  3. What is a PSBT?
  4. A Bitcoin signed message proves less than it sounds
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Guides

19

Sit down and do one thing, with a way to check it worked.

  1. Plan a Bitcoin payment fee without sending anything
  2. Calculate a SegWit txid and wtxid with Python
  3. How to use coin control in Sparrow Wallet
  4. Verify a Taproot address checksum with Python
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Deep Dives

9

The mechanism underneath, with the spec and the constants.

  1. The 2018 hash war, and what hashrate cannot decide
  2. Bitcoin has no balances, only unspent outputs
  3. How Bitcoin holds a ten-minute block interval
  4. The Lightning implementations, and how they differ
More

Features

13

An argument, with the strongest version of the other side.

  1. The block size war, and what it settled
  2. Nobody is in charge of Bitcoin, which is the hard part
  3. Why You Should Accept Bitcoin at Your Beachfront Business
  4. Texas passes a Bitcoin reserve law: what changes
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