pub const SEPARATOR: char = '1';Expand description
The bech32 separator character between HRP and data-part (BIP 173 §3).
Re-exported by crate::consts::HRP is "mk"; this module’s
BCH-checksum helpers consume the HRP through their hrp parameter so
that the same primitives can verify any single-HRP codex32-derived
string. Production callers MUST pass crate::consts::HRP.