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

What is the endianness of the hex strings returned by getblockhash and getblockheader?

What is the endianness of the values returned by bitcoin-cli RPC commands getblockhash and getblockheader (verbose = false)?

Bitcoin Wiki's "Block hashing algorithm" page says the header is comprised of "little-endian values in hex notation". It continues (§ "Endianess"):

Note that the hash, which is a 256-bit number, has lots of leading zero bytes when stored or printed as a big-endian hexadecimal constant, but it has trailing zero bytes when stored or printed in little-endian.

Is this correct?

So does getblockheader (verbose = false) return little-endian hex:

$ bitcoin-cli getblockheader 00000000000000001e8d6829a8a21adc5d38d0a473b144b6765798e61f98bd1d false
0100000081cd02ab7e569e8bcd9317e2fe99f2de44d49ab2b8851ba4a308000000000000e320b6c2fffc8d750423db8b1eb942ae710e951ed797f7affc8892b0f1fc122bc7f5d74df2b9441a42a14695

and getblockhash:

$ bitcoin-cli getblockhash 125552
00000000000000001e8d6829a8a21adc5d38d0a473b144b6765798e61f98bd1d

return big-endian hex, ∵ it has lots of leading zeros?

Why isn't everything the same endianness?



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