Bitcoin Bites

One Bitcoin concept explained simply, every week. From The Weekly BOLT.

On-Chain Analytics

How Bitcoin Works

  • Entropy — The Randomness That Guards Your Keys —

    Last week we examined how Bitcoin's rules resist change, using the failed BIP-110 fork as a live case study.

  • BIP-110, and What a Failed Fork Teaches Us —

    On Saturday evening, at block height 961,632, Bitcoin experienced its first chain split in years.

  • What Is the Mempool? —

    Last week we covered the UTXO model — how Bitcoin tracks balances as discrete unspent envelopes rather than as a single account number.

  • What Is the UTXO Model? —

    Last three weeks we covered Transaction Fees (Week 13), Replace-by-Fee (Week 14), and Child-Pays-for-Parent (Week 15).

  • What Is Child-Pays-for-Parent (CPFP)? —

    Last week we covered Replace-by-Fee (RBF), the mechanism that lets you bump a stuck transaction by rebroadcasting it with a higher fee.

  • What Is Replace-by-Fee (RBF)? —

    Last week we covered transaction fees, the economic mechanism that gets your Bitcoin transaction included in a block.