Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &

Tangem Wallet Pack of 2 - Secure Crypto Wallet - Trusted Cold Storage for Bitcoin, Ethereum, NFT's &
Key item features Ultimate Security: Generates a private key that remains on the card, safeguarding crypto and NFTs from hackers with EAL6+ certification and audited firmware. Versatile Compatibility: Manages over 13,000 tokens across 70+ blockchains, supporting DeFi, NFTs, and DeEx without wires, Bluetooth, or USB. Effortless Operation: Utilizes NFC for secure transactions via a mobile device and the Tangem app, enabling buying and selling crypto with various payment methods. Smart Backup: Features a second Tangem Wallet as a backup, eliminating the need for paper, pictures, or seed phrases for recovery. Durable Design: Boasts IP68 protection against environmental conditions, ensuring longevity and robust physical security. Comprehensive Support: Compatible with Bitcoin, Ethereum, Solana, XRP, USDT, and over 6,000 cryptocurrencies, integrating with dApps and WalletConnect.

LBANK

LBANK

Why is `SIGHASH_ALL` allowed in taproot when `SIGHASH_DEFAULT` is more efficient?

The existence of SIGHASH_DEFAULT makes SIGHASH_ALL redundant for Taproot, since both produce the same behavior — except SIGHASH_DEFAULT saves a byte by being implicit.

Given Bitcoin’s usual focus on minimizing blockspace usage (e.g. x-only pubkeys, minimal ScriptSig rules), why isn’t there a consensus or policy rule to disallow or discourage SIGHASH_ALL in Taproot signatures?

I’m not suggesting it’s a bad design choice — I just want to understand the rationale behind allowing the redundant form.



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