Protocol & Consensus • Estimated 25m

TapTweak

protocol.taptweak

TapTweak derives a Taproot output key by adding a tagged-hash tweak to an internal key, optionally committing a script tree at the same time. It is the mechanism that binds key-path and script-path spending into one Taproot output.

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Curated resources (3)

• BIP 341: Taproot (article) Canonical definition of Taproot output key tweaking and script commitments.
• Bitcoin Optech Schnorr/Taproot Workshop (article) Workshop module 2.2 explains how key tweaks commit to arbitrary data in Taproot outputs.
• Programming Bitcoin (book) Deeper walk-through of the cryptography, scripting, and transaction mechanics behind this topic.

Direct prerequisites (3)

• Tagged Hashes
• Taproot
• X-Only Public Keys

Direct dependents (2)

• Taproot Key-Path Spends
• TapTree

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