Add OP_PAIRCOMMIT topic page#875
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TumaBitcoiner
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Jun 17, 2026
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| Bitcoin script already has simple ways to commit to single items with hashes. OP_PAIRCOMMIT adds a compact way to commit to pairs of items, and repeated applications can build Merkle-style commitments to larger sets of data. That makes it useful for advanced contracts that need to commit to structured data while revealing only the branch being used. | ||
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| The proposal is discussed as a building block for more expressive tapscript contracts, including designs that need better in-script data commitments or staged delegation logic. It is also one of the opcode candidates discussed in the broader LNHANCE proposal set. |
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| The proposal is discussed as a building block for more expressive tapscript contracts, including designs that need better in-script data commitments or staged delegation logic. It is also one of the opcode candidates discussed in the broader LNHANCE proposal set. | |
| The proposal is discussed as a building block for more expressive tapscript contracts, including designs that need better in-script data commitments or staged delegation logic. It is also one of the opcode candidates discussed in the broader [LNHANCE][/topics/lnhance] proposal set. |
LNHANCE needs to also be merged.
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Adds a new
OP_PAIRCOMMITtopic page with a concise explanation of the proposed tapscript opcode and what it enables.data/topics/op-paircommit.mdxwith verified references to BIP 442,bips.dev, and the Delving Bitcoin discussion threadCloses #871
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