Header = v1 = 36b

Magic = CHKL Header size in bytes (byte4) = 36 Version (byte4) Number of chunks (uint4) Unknown (likely header extra?) = 0 Row Size = 36 Row extra? = 0 Signed size = header + number of chunks * row size? Unsigned extra? = 0

Row 36b

Length = (uint4), typically 2MB SHA256 of chunk

Footer

256 byte, 2048 RSA signature