# x86-64 ## Identification The 64-bit extension of the x86 instruction set. The notebook pairs it with Rosetta 2 during Apple's architecture migration. ## Notebook evidence - [[Scanned_20260730-1946|Scanned_20260730-1946]], PDF page 8. ## Relationships and evidentiary boundary [[Rosetta 2]] · [[WOW64]] · [[Interoperability]]. The notebook occurrence records research context and page-level proximity. It does not by itself establish ownership, deployment, compromise, coordination, or present-day status.