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Bitcoin

Bitcoin Covenants Part 4: OP_CHECKSIGFROMSTACK and OP_CAT

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Door Anoniem

Gemaakt July 15, 2026|1 min lezen
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OP_CSFS authenticates signatures over arbitrary data. OP_CAT concatenates stack values into a single message. Together, they let Bitcoin scripts verify transaction structure at spend time, without pre-signed key management or new consensus rules beyond the two opcodes themselves.

Source: CoinTelegraph

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