# V3 Scheduled Concert Pre-Warm Validation

`v3-concert-prewarm-budget.v1` is the release gate for the `V3/V3_TODOS.md` §67
scheduled concert pre-warm item.

## Gate

- Scope: scheduled Saraswati stadium concerts served through Tier-1/Pixel
  Streaming plus CDN asset delivery.
- Relay planner route: `/api/v3/pxstream/concert/prewarm/plan`.
- CDN asset pre-warm lead: at least 15 minutes before scheduled start.
- Pixel Streaming worker pre-warm lead: at least 30 minutes before scheduled
  start.
- Load-test shape: 4,000 scheduled concert joins across five POPs.
- Required cached asset groups: six concert asset groups.
- Cold-join reduction: at least 50% versus cold baseline.

## Evidence

`V3/validation/concert-prewarm-validation.json` records the relay planner load
test with CDN assets scheduled 900 seconds before start, Pixel Streaming workers
scheduled 1,800 seconds before start, 4,000 ready pre-warmed workers, baseline
cold-join p95 of 7,789 ms, pre-warmed cold-join p95 of 3,423 ms, and cold-join
reduction of 5,605 basis points.

Run `pnpm verify:v3 concert-prewarm` before release. The verifier fails closed
if the planner route, lead windows, asset count, worker count, load-test
reduction, evidence, or TODO lock is missing or weakened.