oyotta.observation.v1 is the first-party envelope for exposure and response on owned surfaces.

What is recorded

Event type, object identifier, stream and rank when present, allocation mode, device class, viewport class, and a session token that never leaves the collector as an identity.

What is refused

IP addresses, raw user agents, referrer hosts, names, and inferred completions on players OYOTTA does not host.

Consequence for Listen

Audio completion is emitted only from the first-party player. Album masters that are not on this disk do not generate audio_start zeros dressed as measurements.