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

When — and why — did Bitcoin Script shift to a commit–reveal structure?

Re-reading the whitepaper, Section 2 describes ownership as transferring coins directly to the next owner's public key — which maps to P2PK. That's the last standard type where the full spending condition is visible in the output.

Every format since then does the reverse: commit to a hash, reveal the preimage at spend time. P2PKH started it — hides the pubkey behind a hash, revealing it only at spend time. P2SH, P2WSH, and eventually Taproot all extend the same logic, with Taproot pushing it furthest by hiding an entire Merkle tree of scripts.

Was this a deliberate design direction, or did each upgrade respond to its own pressures independently? Is there a mailing list thread or BIP discussion where this pattern is explicitly articulated?



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