a time newer than every sealed segment resolved to sealed_max+1 — up to a whole open segment behind the tip. at production scale that anchored boot-window subscribers ~35 minutes back on the cold path, whose active- region walk re-decompresses per pass: a treadmill delivering below the live rate, seen as coral/bufo oscillating 0<->40/s after each restart until manually bounced. resolveTimeToSeq now walks the active segment's fsynced blocks (once, at connect) and lands within the last flushed block of the requested time; a time newer than every fsynced row anchors at the next not-yet-durable seq. test discriminates: sealed-boundary behavior fails it (expected 6, found 5). full suite + seam/lookback/read-batch contracts green. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>