Digit-Curvature Operators on Physical Constants and Their Clifford Algebra Structure

We introduce a discrete curvature operator ² acting on the significant digit sequences of physical and mathematical constants, producing 8-dimensional vectors in the Clifford algebra Cl (8, 0). The operator maps a real number to its second finite differences in base 10, yielding an 8-component vector whose algebraic products encode structural relationships between constant pairs. We show that this encoding reveals a non-trivial geometric skeleton: consecutive Riemann zeta zeros ₂ and ₃ are exactly orthogonal in the ² inner product, the Boltzmann and Planck constants are antiparallel at 178. 5°, and nine constant pairs achieve exact or near-exact orthogonality. We extend the method to scalar fields on a three-dimensional grid, where the ² grade decomposition is dominated by the trivector (grade-3) component at 69–73\% of total content, significantly above a measured null baseline of 65. 6\%. The structural excess is traced to an anomalous isotropy of the evolved field's digit-curvature gradients — 20 more isotropic than any synthetic comparison field. We report an observable numerical coincidence: the CFL stability condition on a -structured Laplacian field produces a beat period whose reciprocal matches the angular migration rate of Earth's magnetic north pole on S³ to five significant figures, with one free parameter.