# How Bitcoin transactions work

Bitcoin transactions involve inputs and outputs. Outputs are locked with scripts requiring signatures to unlock. Fees are required now, unlike early days.

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Image: https://fiatjaf.com/static/bitcoin-transaction-sequence-drawing.png

Image: https://fiatjaf.com/static/bitcoin-transaction-complex-drawing.png

#bitcoin #transactions #utxo

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Created: 2026-10-26T14:33:49.540206+00:00

Last edited: 2026-10-26T14:33:49.540206+00:00

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Original source: https://fiatjaf.com/5f5112d7.html