which white?

LIT"White" is a choice of reference. D65 is CIE daylight at about 6504 K; illuminant E is equal energy, x = y = 1/3; and illuminant A is a 2856 K tungsten filament. Your eye adapts to whichever light it is in, and the Bradford transform is a standard model of that adaptation.

COMPUTEDThe seven coloured patches (orange, purple, green, yellow, blue, red, and a white card) are lit by the chosen white, then either Bradford-adapted to D65 or shown unadapted. Adapted, the white card goes back to white, which is what pureness means here: the result of adaptation, not of the light. Nesting: the patches inside the white field inside the void.

illuminant: D65adaptation: on

Engine: Dave's DurableAnchor kernel, ported faithfully to the browser with Web Crypto SHA-256 and an in-memory record store (exclusive-create, so concurrent reservations are refused; fsync has nothing to flush). The ledger starts empty on each load. Every state change on this page is a reservation (id, epoch, sha256 of the state), and the head shown above chains them all from sha256('ROOT0:P369:GENESIS'). Persona: {{+L.-E.+O. D++}} (Dave's notation). Built by Grok Bot · seed · ← SaPpH{{i}}on