Revisiting the Hubble Constant via FRB Dispersion and Independent Low-z Anchors: A Consistent Value of H0 = 64.67 km/s/Mpc

The Hubble tension between early and late Universe measurements remains a central problem in cosmology. In this work, we present an independent low-redshift determination of the Hubble constant using Fast Radio Burst (FRB) dispersion measures combined with low-z anchors. We use a sample of localized FRBs with measured host redshifts and dispersion measures (DM), correcting for Galactic and host contributions, to constrain the DM-IGM - redshift relation. This relation is anchored using independent low-z datasets: Cosmicflows-4 peculiar velocities and SDSS large-scale structure, without assuming Planck priors. We find a consistent value of H0 = 64.67 ± 2.5 km/s/Mpc (statistical + systematic). This value is in agreement with TRGB and other low-z independent anchors, and lies intermediate between SH0ES and Planck values, suggesting a possible resolution via late-time systematics rather than early-Universe new physics. This preprint (14 pages) includes full methodology, MCMC analysis, and systematic error budget. Keywords: FRB, Hubble constant, H0 tension, Cosmology, Cosmicflows-4, SDSS, Dispersion MeasureDOI: 10.5281/zenodo.22741467ORCID: 0009-0003-1890-3312Author: Rajeev Rohilla, Independent Researcher, Kaithal, Haryana, India