nx_crc32_gate.nx

nx_crc32_gate.nx -- the gate for CRC-32, and the ecosystem's cleanest ORACLE-CLASS evidence. WHY IT RANKS ABOVE ITS FAN-IN (14 importers): the check value below is EXTERNAL AUTHORITY. 0xCBF43926 for "123456789" is the published CRC-32/ISO-HDLC check constant (IEEE 802.3 reflected poly 0xEDB88320, init/xorout 0xFFFFFFFF) reproduced by zlib crc32(), python binascii.crc32() and the CRC RevEng catalogue -- authored by people who never saw this implementation. ★THAT IS THE DEFINITION OF THIRD-PARTY: an oracle editable by neither the provider nor the user. This gate is therefore a candidate EV_CLASS_ORACLE row, not merely a consistency test. ("KAT" names the FORM, not the PROVENANCE -- a KAT whose answers we wrote ourselves is self-consistency; these answers predate us.) ⚠THE SAME DEFECT nx_str HAD: the module's vectors live inside its own main(), which expand_imports STRIPS from every consumer -- so they ran only if someone built this module as an entry point, and NO ruler could read the result. Re-derived here in readable form, WIDENED with a vector the original did not carry (T4), and given a negative control. license_tier: ORIGINAL expect_exit: 0 No hw writes (Rule 26).