Grounding
Grounding is the audit trail of credibility. Every signal sits in one of four states, and only the source-and-verify task can move it between them. Every state change is recorded with a rationale and confidence.
The four states
Ungrounded: no sources recorded yet. Pending: sources exist but no terminal verdict currently holds. Verified: evaluated sources together affirm the signal. Rejected: evaluated sources together do not support it.
How a signal moves between states
The source-and-verify task evaluates each source individually, then commits to a signal-level verdict with a confidence level and a written rationale. Manual source edits leave the signal in pending until the task runs again.
Confidence and rationale
Every verified or rejected signal carries a confidence score and a short rationale explaining the verdict. Both are read-only and updated only by source-and-verify. Re-run that task to refresh them.