SCP-073 is contained at all times within the bisks.net subdomain lattice, reachable exclusively through the fixed address https://fieldguide.bisks.net/. As a Euclid-class object, personnel are advised that SCP-073'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-073, referred to by Foundation staff by its working name "field guide," classified as an informational anomaly, is reachable at https://fieldguide.bisks.net/.
The clearest surviving account of the anomaly's function is its own front-page copy, reproduced below:
a little guide to what's growing around atproto beyond Bluesky itself — Leaflet, Tangled, lexidraw, Smoke Signal, Frontpage, PDSls and more, sorted into talk/make/build, with a nod to the fact that it'll be out of date within a year. @bisks.net asked for a guide to the ecosystem.
Foundation awareness of SCP-073 began with a tagged mention from the individual on record as @bisks.net. First logged 2026-07-28.
Addendum 073-A: Euclid remains the Foundation's largest classification by volume. SCP-073 is unremarkable within that population and is not flagged for expedited review.