SPXI instrument · method 0.9 of 87, level 0 (Measurement): Capture Registry (longitudinal observation); also method 6.14, Fleet capture windows. An instrument of SPXI, the Semantic Packet for eXchange & Indexing; the whole practice is itemized at spxi.dev/methods.
What the Composition Layer Shows — a window onto the canonical Capture Registry at alexanarch.org/captures/, rendered live from its registry file and holding no copy. Each capture is cited at its record page, alexanarch.org/captures/{slug}/.