That price's own update time, in µs.
Inclusive.
The committed price of the cohort's first order as a float: spotRaw / 1e9.
Who committed: a keeper, or any third-party filler.
The committed price, normalized to 1e9.
The update's envelope: τ, or the backup tick one channel tick later.
onchain_timestamp_ms.
CohortCommitted: a price attached to the recordsfirstRecordId..=lastRecordId. Drives "Priced".