hash256

Computes Bitcoin Hash256 (SHA256(SHA256(data))) from input data.

Implements the Bitcoin double SHA256 function used for transaction IDs, block hashes, and Base58Check checksums. Applies SHA256 twice for additional security.

Arguments

• data - Input data to hash as a span of bytes

Returns

• Array<u8> - 32-byte Hash256 result

Fully qualified path: alexandria_btc::hash::hash256

pub fn hash256(data: Span<u8>) -> Array<u8>