Taproot
Web3 / blockchain technology
Taproot is a major Bitcoin protocol upgrade that was activated on November 16, 2021, substantially improving the blockchain's privacy, efficiency, and smart contract capabilities through cryptographic innovations. The upgrade introduced Schnorr signatures, which reduce transaction size and verification time, and implemented MAST (Merkelized Abstract Syntax Tree) for more efficient script validation. These technical improvements lowered transaction fees, increased throughput, and enabled more sophisticated smart contracts while maintaining Bitcoin's security model. Taproot also enhanced privacy by making complex transactions appear identical to simple transfers on the blockchain, obscuring the true nature of on-chain activity from external observers. Example: The Ordinals protocol that enabled Bitcoin NFTs and the BRC-20 and Runes token standards were all built on top of Taproot's enhanced capabilities, specifically leveraging its support for greater script flexibility and data capacity. Why it matters for blockchain technology: Taproot proved that Bitcoin could evolve and improve without hard forks or contentious consensus changes, while enabling new applications that expand Bitcoin's utility while preserving its core security and decentralization principles.
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