Render the header/timestamp value: UTC, ISO 8601, millisecond precision, e.g. 2026-09-03T14:25:11.482Z.
header/timestamp
2026-09-03T14:25:11.482Z
Render the
header/timestampvalue: UTC, ISO 8601, millisecond precision, e.g.2026-09-03T14:25:11.482Z.