The known-failed case, from PC 2's 0.3.9 log (run win-1ccfe586-20261005-200114): 1791234223 pause -> 'stopping the
miners (paused)' (every slot's restart_at cleared, the 5090 'off'); 1791235511 '[ok] mining resumed'; then
'0.00 MH/s, waiting' at every 30-s status line until the 0.3.10 restart at 21:49:41Z. Cause: Cmd::Resume re-armed
only slots whose watchdog said faulted; the 5090's slot was healthy and stopped, so nothing restarted it. The test
the_pc2_resume_of_21_25_11z_restarts_under_the_new_rule_and_not_the_old encodes that slot (faulted false, live
false): the old rule returns [] (the defect), the new rule [0]. cargo test -p igneum-app resume: 3 passed;
provedefault: 6 passed.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
Step 1: app/igneum-app/src/provedefault.rs decides once per install (NVIDIA 12 GB or more, WSL2 answering on
Windows, Linux native, Apple silicon off until measured), never switching an explicit on back off; the Settings
switch line and the tile line say why (5 unit tests). tools/proving-v1/pc2-prover-cost.ps1 is the PC 2 job
(5 min mining alone, 5 min with the prover, GPU memory and host RAM peaks, the sp1-gpu-server's SM targets).
Step 2: the host gains --mode chain (consecutive fixtures, each block aggregated with the previous block's
proof by recursion), --mode aggregate (the live aggregator over shard proof files, a run of blocks in one
process) and --mode verify-segment (the node's verifier against the pinned aggregator key); the app's prover
loop gains aggregate_once (spec 7.8). Eight consecutive live fixtures (blocks 81046 to 81053, node 1's export
at tip 81076) under proving/fixtures/chain/. tools/proving-v1/pc2-chain.ps1 is the PC 2 job (held).
Steps 3 and 4: tools/proving-v1/coverage.mjs (the proven-block share and the on-chain latency from one node's
RPC), tools/proving-v1/net.mjs (the fast-time 3-node harness on 29950+ with the known-finished and
known-failed cases of the chain rule and the unproven rule), the four proving_v1 fields in
infra/fast-time/override-60x.json. Spec 7.8, the 7.4 rows, the 5.3 sentence, docs/plans/proving-v1.md.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
