infra/fast-time/override-60x.json is the devnet with every clock-like consensus parameter divided by 60 and every
block count unchanged (finality window, ban and min_daa 120 DAA; merge depth 60; Kaspa finality depth 720; pruning
depth at the anticone bound 13,838; coinbase maturity 2; the hourly program epoch 60 blocks with a 10-block lead;
the dataset day 24 minutes). The epoch length, lead and day are consensus parameters of the node since devnet-v4
a5ef8b07, carried by the override file. README lists each field, why it scales or not, the flags and the numbers.
Measured (simnet.mjs, three devnet-v4 nodes, three vmine voters at 1 block/s, one real-hash CPU miner): next
epoch seed in the template at 56.1 s, program swap at 65.1 s wall (DAA 60), first finality lock at 185.5 s wall
(checkpoint 5, DAA 149). Both harnesses take --fast-time: finality-attacks s3 PASS in 113 s wall with 16 locks
per node (the devnet rule needs 20 min of warm-up at 6 blocks/s before any lock); harness s3 partition and heal
43 s wall for three cuts against 983 s for four on the devnet profile with the same binary. Bench-log entry.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
tools/harness runs the standard consensus-attack catalogue against a private
test network of our own igneumd nodes (127.0.0.1 ports 27200+, /tmp/igneum-harness,
never the live devnet or the PC node), with a pass criterion per scenario from the
spec and a measured result each. Built on the node fork's own crates
(igneum-harness-sim on kaspa_utils::sim as simpa does; igneum-p2p-probe for the
wire). Scenarios: 1 withholding, 2 timestamp edges and drift, 3 partition and heal,
4 eclipse, 5 malformed and boundary inputs on every p2p and RPC surface, 6 resource
exhaustion, 7 fast-miner flood. Finality and difficulty-controller scenarios are
stubs with their criteria written.
bench-log: one dated entry, a row per scenario (criterion, measured, pass or fail).
First run: 19 of 20 measured rows pass. Findings recorded in the entry: scenario 5
reproduces ledger M15 on HEAD (bogus past-day or DAA headers build a 256 MiB cache
before rejection; the r3-fixes branch removes it); scenario 1 at 45% hash with
burst withholding shows a selfish-mining blue-share gain (50.7% of blues), the one
failing row.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
