Standard containment for SCP-102 consists of restricting the anomaly's route to https://keytags.bisks.net/ and monitoring for route drift. As a Euclid-class object, personnel are advised that SCP-102'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-102, referred to by Foundation staff by its working name "keytags," classified as a utility-class anomaly, is reachable at https://keytags.bisks.net/.
The clearest surviving account of the anomaly's function is its own front-page copy, reproduced below:
a private tag box for other atproto accounts, hiding in plain sight in your own repo. type a secret (never sent anywhere, never saved) and it hashes each DID you tag via HMAC-SHA256 into the record key — so your <b>net.bisks.keytags.set</b> collection is public, but every entry is just an opaque hash next to some tags unless you hold the key. @7778777.online asked for a keyed hash set for tags stored in your PDS — this is that.
SCP-102 was brought to Foundation attention by @7778777.online, who is credited in the containment log as the requesting party. First logged 2026-07-26.
Addendum 102-A: Euclid remains the Foundation's largest classification by volume. SCP-102 is unremarkable within that population and is not flagged for expedited review.