Field notes from Proofmark: how knowledge rots, what makes an answer safe to act on, and why a verified badge should name a person, a version, and a date.
Practitioners' verbatim words for wiki rot, and the measured data on what breaks when an assistant answers fluently from a stale page nobody stands behind.
Five repeatable ways to make an assistant cite a document nobody stands behind. Each one struck out by a shipped mechanism.
In January 2026 the incumbent let an AI flip the verification checkmark by default; Proofmark keeps the signature human: a named person, a specific version, a date.
Read-only connectors, two-phase authorization, a hash-chained audit log, and crypto-shred erasure: architecture you can inspect, with the gaps stated plainly.