Most digital clocks reset, soft-delete, or vanish when a product dies. Centiglass treats duration as infrastructure: a public instrument whose meaning is the unbroken chain from start_at to end_at, not a marketing countdown.
The visual glass is theater for a sober claim — that absolute timestamps, health logs, and human succession can keep a single experiment alive longer than any one app stack.
Progress is recomputed from stored ISO-8601 anchors every time the page is visible:
last_health and steward status current; sand still advances from local clock aligned to those anchors.ai_status digests.start_at / end_at.Production truth is the health log: drift, skew, ok flags, and checked_at. If the steward heartbeat ages past policy windows, the console shows degraded state in plain language.
Switch the stage to 1 Minute or 1 Hour for dense local sand timers — start, pause, reset. These demos run entirely in your browser; they do not write to Neon.
Use them as focus glasses, meeting markers, or a quick check that the particle engine still feels honest at human scale. Century mode remains the public instrument synced to the API.
Centiglass is not a promise that this exact stack will run until 2126. Continuity depends on domain renewals, Cloudflare/Neon (or successors), paid plans, and people willing to hand the keys forward.
The honest posture: keep anchors immutable, keep health auditable, document succession, and treat every redesign as stewardship — not a soft reset of the century.
Yes in the sense that chamber fill is derived from absolute timestamps. Particle drip is illustrative densification — at century scale a literal grain-per-second stream would be invisible, so the engine shows sparse continuous flow while height tracks true progress.
The console enters degraded mode and continues from last-known or baked-in fallback anchors (2026-09-21 → 2126-09-21 UTC). Heartbeat fields mark the failure clearly.
It is derived from last_health age and ok flag — a human-readable gloss over SQL, not a separate oracle.
No storefront yet. Soft support: keep the idea circulating, or reach the operator when contact is published. Fake crowdfunding links stay offline on purpose.