  We present a dispersion theoretical analysis of recent date from
electron-proton scattering. This allows for a high-precision extraction of the
electric and magnetic radius of the proton, $r_E = (0.839\pm
0.002{}^{+0.002}_{-0.003})$~fm and $r_M = (0.846\pm
0.001{}^{+0.001}_{-0.005})$~fm, where the first error refers to the statistical
type estimated from the bootstrap method, and the second one refers to the
systematic uncertainty related to the underlying spectral functions.
