Three impact levels. Minor means a single mirror affected, no buyer or vendor session disruption. Major means two or more mirrors affected simultaneously, or a single mirror down for more than 30 minutes. Maintenance covers planned key ceremonies, signed announcements, and security communications that change nothing user-facing but do require operator action.
Resolution times are reported as wall-clock from first detection to verified recovery. We do not distinguish between detection lag and actual outage start because the user experience is identical, the market is unreachable either way. The reported duration is the true outage window.
Every incident entry is signed under the master fingerprint 0A9D. The archive itself is also signed monthly by the audit observer key, witnessed by independent custodians, and republished on each mirror under /announcements/audit. If you care about the chain of custody, the cross-signatures are the proof.