I was looking up that particular hex and it seems to be related to SMBIOS, some sort of port entry (input). Probably because these blocks were withheld and were actually mined at the locktime date. Just a guess though.
The SMBIOS table consists in an entry point (two types are defined, 32-bit and 64-bit), and a variable number of structures that describe platform components and features. These structures are occasionally referred to as "tables" or "records" in third-party documentation.
https://en.wikipedia.org/wiki/System_Management_BIOS#Generating_SMBIOS_data