rollout-v2.sh stages the Linux igneumd (gateways from the Mac, private nodes from their gateway), rolls one node at a time with
difficulty_v2_activation_daa in every override file, checks the common chain and watches the height; results/2026-10-04/
rollout-v2*.log and v2/ (the hash-rate step under v2 and the v1 comparison). docs/plans/difficulty-v2-rollout-devnet.md: the
binaries and their sha256, the activation rule (N = DAA at publish + 10,800; baked at the cut as DAA + 14,400), the exact
restart lines for the observer node, the seed and Mac node 1, the OTA path for the two PCs through NODE_OVERRIDE_PARAMS in
packaged-config.sh (the engine side landed in 0dd587d), the rehearsal record. Bench-log entry.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
partition.sh adapted to private-network mode: the cut sits on the region's gateway (INPUT, OUTPUT and FORWARD
against the far gateways' public IPs over 26611 and the DNAT ports 27001:27099), since a per-node port-26611 rule
leaves the DNAT links up. It now records the locks per side at cut, during, at heal and after convergence, the
first lock after the heal from the journals, and the heal time as each minority node's first chain removal of 5+
blocks (the sink-count criterion is tip churn on a healthy network). hop.sh and partition.sh hold the Mac awake
with caffeinate; analyze.py gains a 10-s hop series (difficulty, block count, 1- and 2-min rates, threads) and an
overshoot table; collect.sh writes hop-series.tsv and hop.md and gzips the journals.
Results 2026-10-04: partition 1 (window still filling) reorg 431/496 on the minority, 2 on the majority, healed in
10 and 14 s; partition 2 (locks active): minority locked nothing during the cut, majority locked every interval at
66.8% to 84.5% of total, 0 conflicting locks over 107 indices, healed in 11 and 15 s, first lock after heal 13 s.
Hash-rate steps x1.42, x0.70, x0.75, x1.32: difficulty overshoots x1.67, x0.66, x0.53, x1.60, settle 751 s,
never in 900 s, 241 s, 646 s. Failures stated in summary.md: the Mac hibernated during the hop (phase 2 ran 94
min), the first partition could not see locks, the script's heal and first-lock figures were artefacts (fixed),
and another agent's v2 rollout restarted every node during the second heal.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
A new Hetzner account is capped at 10 primary IPs (IPv4 and IPv6 both count), 20 shared vCPUs, 8 dedicated
vCPUs and no Arm, and a network cannot span zones. So: one private network per zone (10.20.<zone>.0/24),
the lowest-index node of each zone keeps a public IPv4 and is its gateway (NAT, MSS clamp, one DNAT port
27000+index per private node, persisted as igneum-nat.service), every other node has no public address.
nodes.tsv gains access, pub and port columns; lib resolves same-zone vs cross-zone dial addresses and jumps
ssh through the gateway for private nodes. All nodes.tsv loops read on fd 3 (a backgrounded ssh drained the
file). TYPE_BY_INDEX puts nodes 8 to 11 on ccx13; node 12 is the last shared one the account allows.
create.sh prints the plan's cost from the live API. provision.sh install takes node names and skips binaries
whose sha256 matches. Binaries copied from the seed's staged v4 build (same sources), no vCPU for a builder.
Results 2026-10-04: RTT matrix (hel1-fsn1 35 ms, ash-sin 289 ms) and a 10-minute propagation window of 644
blocks: p50 343 ms, p90 497 ms, p99 666 ms across 12 nodes in 5 locations.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
infra/cloud-devnet: hcloud (doctl variant) create, builder-VM provision from a git-archive source tarball,
systemd units for igneumd --devnet-suffix with a sparse --addpeer mesh and a CPU trickle miner per node,
stdlib wRPC client, experiments (latency, partition, hop, collect, observer hookup), README with the command
sequence and the Hetzner API prices of 3 Oct 2026.
infra/gpu-bench: RunPod image recipes (CUDA 12.8, ROCm), bundle, run.sh (vectors gate, 10-min raw, sweep,
inline shortcut ratio, nvcc/NVRTC/OpenCL recompile timings, results row, intake upload), bench-log template.
infra/seed-nodes: create-seed (persistent IPv4, firewall), provision on the VM, health check, addPeer from the
Mac over grpcurl, seeds.txt; igneum-seed-1 created at 188.245.5.161 (Hetzner cx23, fsn1).
docs/plans/cloud-devnet.md and docs/plans/seed-nodes.md.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
