Percentage of 5mC or 5hmC in CpG and CpH contexts (with H = A or T or C) in amplicons derived from lambda (unmethylated cytosines), CpG methylated pUC19 (CpG methylation), T4gt (hydroxymethylated cytosines), and mouse genomic DNA measured using three sequencing platforms (Illumina, PacBio, and Oxford Nanopore)