/// Fake scids are divided into namespaces, with each namespace having its own identifier between
/// [0..7]. This allows us to identify what namespace a fake scid corresponds to upon HTLC
/// receipt, and handle the HTLC accordingly. The namespace identifier is encrypted when encoded
/// Fake scids are divided into namespaces, with each namespace having its own identifier between
/// [0..7]. This allows us to identify what namespace a fake scid corresponds to upon HTLC
/// receipt, and handle the HTLC accordingly. The namespace identifier is encrypted when encoded