SCP-139 is confined to a single Cloudflare Worker instance addressed at https://nothingness.bisks.net/. No physical containment chamber is required. As a Euclid-class object, personnel are advised that SCP-139's behavior is only partially predictable under repeat interaction; researchers should log anomalous outputs to the site's own Addendum before treating them as expected behavior.
SCP-139, referred to by Foundation staff by its working name "nothingness," classified as a memetic anomaly, is reachable at https://nothingness.bisks.net/.
Interviewed via its public interface, SCP-139 produced the following statement, transcribed verbatim:
a website that really demonstrates the concept of nothingness — a near-blank void that makes you click the nothing every five seconds or lose your witness streak, backed by a genuine Durable Object and a leaderboard for longest nothing witnessed (sign in with Bluesky to claim your spot). built for @fromthewestmeadow.com.
SCP-139 was brought to Foundation attention by @fromthewestmeadow.com, who is credited in the containment log as the requesting party. No discovery date is on record.
Addendum 139-A: Euclid remains the Foundation's largest classification by volume. SCP-139 is unremarkable within that population and is not flagged for expedited review.