AR evolves from ephemeral overlays to persistent spatial existence. Apple Vision Pro x Adobe’s "Reality Anchor" uses LiDAR and UWB chips to烙 digital content into physical coordinates: after initial scanning, virtual ads are stored in local spatial clouds, allowing subsequent users to view identical holograms without rescanning. Nike NYC’s flagship uses this to maintain a persistent LeBron James hologram in its atrium, achieving 99.8% cross-device consistency.

Breaking device barriers is the breakthrough. BMW x Microsoft’s "Holographic Persistence Network" employs quantum gyroscopes and geomagnetic correction for city-scale centimeter accuracy: scanning Munich HQ with any phone anchors a BMW i7 hologram permanently, visible across Android/iOS. This reduced brand search costs by 54% (Forrester).

Industry standards establish triple verification: spatial layer (Qualcomm AR2 chip enables 0.1° angular tolerance), temporal layer (blockchain timestamps synchronize updates), permission layer (space NFTs determine virtual ad ownership). As Gucci purchases Tokyo Omotesando’s "spatial persistence layer" to display virtual bags (cross-device try-on & direct purchase), metaverse advertising escapes "isolated experience" to form a cross-device reality stratum. IDC forecasts persistent spatial ads will reach $4.7B by 2025.