PC 1's read-back: the node reported synced while its finality replay blocked the template RPC for three minutes; the miners printed only timeouts and the watchdog faulted every card. The timeout line is the miner's heartbeat: silence clocks start over from it, the card says it waits for templates, one Activity line per episode. Recorded sequence as the test; 173 box tests.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
(cherry picked from commit e619bc96c3)
7d211170e8