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

Does SIGHASH_ANYPREVOUT commit to the TapLeaf hash or the full Taproot Merkle path?

When spending a Taproot script-path output with SIGHASH_ANYPREVOUT (BIP118), I want to understand what exactly is committed to regarding the script tree.

Specifically: if two UTXOs have the same executed leaf (same TapLeaf hash) but different TapTree structures (different Merkle paths), will the same APO signature validate against both?

I constructed a multi-round Eltoo chain on Inquisition signet, and observed that the APO signature can still be reused across rounds and successfully spend the output. I also confirmed that the same APO signature can spend two different UTXOs with identical scripts and amounts (tx1, tx2).

This suggests that the signature commits to the TapLeaf hash, but not the full Merkle path — and I’d like to confirm whether this is the correct interpretation.



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