Each lattice L is given as [gram, mass, rs, red_mass, hbv] where: -- gram is a Gram matrix of L -- mass is the mass of L (inverse of order of isometry group of L) -- rs is the root system of L (an ADE root system) -- red_mass is the reduced mass of L (mass * order of the Weyl group of L) -- hbv is the hashed BV invariant of L (see Unimodular Hunting II)