miden-node-store 0.17.0-rc.4

Miden node's state store component
Documentation 
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//! Small conversion helpers shared by the store's queries.

use miden_protocol::note::Nullifier;

/// Returns the high 16 bits of the provided nullifier.
pub fn get_nullifier_prefix(nullifier: &Nullifier) -> u16 {
    // The shift leaves exactly the 16 bits the prefix is defined as.
    (nullifier.most_significant_felt().as_canonical_u64() >> 48) as u16
}