Every URL your library cites is watched on a schedule. When a source page moves, the cascade fires: claims flag stale, Living Content proposes corrections, and Pulse logs the event. You catch source drift on the next check, not from an angry reader.
Yours and theirs. Filter by status, jump to any source, and see what each page touched.
Each page is fetched on its interval, daily, every 3 days, weekly, or monthly. We strip the nav, footer, and boilerplate, hash the content body with SHA-256, and compare it to the last good check. No change, no noise. A real change fires the cascade.
When a page changes, every claim sourced from it is flagged stale and re-extracted from the updated content. If a Living Content block cites those claims, a correction is queued for your review. Your library never disagrees with its own footnotes.
When a claim is extracted with an external source URL, that URL is auto-enrolled as a Monitored Page on a weekly check. You do not maintain the watchlist by hand, the system grows it as your library does.
Each page you cite carries its own live status: Healthy, Changed, Broken link, Frozen, or Disabled. One glance shows which sources are solid and which have gone dark.
When a fetch fails, we retry on the page’s next scheduled check instead of hammering the source. After several consecutive failures the page is disabled automatically and flagged on your dashboard, so a dead endpoint never burns the pipeline.
Each detected change emits a monitored_page_changed beat on your Pulse timeline, tagged with its significance and the claims it touched. That feed is the audit trail of your sources of truth, filterable by type and significance.
Manage the watchlist over the REST API. Every detected change emits a Pulse beat, and you can subscribe to pulse.beat.created webhooks to route source drift straight into Slack, a data warehouse, or your own automation.
// enroll a URL for monitoring (monitored-pages:write) POST /api/v1/monitored-pages Authorization: Bearer <api_key> { "url": "https://gartner.com/marketing-trends-2026", "checkIntervalMin": 1440 } // 1440 daily · 4320 every 3 days · 10080 weekly
Gartner, Forrester, HubSpot, McKinsey. When their numbers shift, the posts that cite them flag stale before a reader notices.
Their pricing, their stats page, their changelog. Your team gets a Pulse beat the moment any of it moves.
Auto-enroll your back catalog. Pages you wrote three years ago stay current, or they get marked old. Either way you know.
A 404 on a cited source is a public credibility hit. Catch it on the next check and fix it before search re-indexes the broken link.
Stripe, GitHub, OpenAI. When their pricing or policy moves, your "according to..." paragraphs should know first.
Pipe page-change beats into a public log through webhooks. Other publishers cite the log, the log cites the sources.
Source pages live outside your workspace. This is how the system stays honest about them.
Watch the URLs your content leans on. When they change, your claims know before your readers do. Free to start, no card required.