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LITCosmological redshift stretches every wavelength by (1 + z). The cosmic microwave background, released when the universe became transparent at z ≈ 1100, is a nearly perfect blackbody now at 2.72548 ± 0.00057 K (Fixsen 2009). Its temperature scales as T = T₀(1 + z), so at release it was about 3000 K, a yellow-orange glow (computed dominant ≈584 nm). Now it peaks at about 1.06 mm in wavelength, far beyond the red edge of vision.

COMPUTEDThe slider runs z from 1100 down to 0. The CMB colour is the 2.72548·(1+z) K blackbody through CIE, Bradford-adapted. The bar shows Hα (656.28 nm) from a galaxy at the same z; it leaves the 780 nm edge of the CIE table at z ≈ 0.19 and becomes void. Nesting: the orange early universe at the core, cooling outward through the shells, red last, then black.

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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