Rob Thijssen c748da08cb feat: arena exporter — network hashrate, difficulty, authorship leaderboard ...

Closes the observability gap in #1 and builds the chain-scraper half of
#2. Every block header carries its miner's reward preimage in a
PreRuntime digest (engine id pow_), so authorship for EVERY miner on the
network is derivable from headers alone -- no indexer, no cooperation,
no event decoding. Difficulty comes from QPoWApi_get_difficulty via
state_call, verified working against the live node.

That makes expected share computable for the first time: our hashrate
over difficulty/interval, plotted against the fraction of blocks we
actually author. The gap between those two lines is orphan and
stale-work loss, which is the only honest test of whether tuning
anything helped.

Pure stdlib Python, deliberately: no pip, no venv, no build step, and it
deploys like every other asset here. Runs as its own service account
against the node's loopback RPC -- it has no business being able to
touch the validator's state or reward config.

Two things learned testing it live. The window is a BLOCK COUNT, not a
duration: a time window is meaningless while the node catches up, since
it ingests history at import speed -- the first version reported a 9ms
block interval and 102 GH/s. And per-preimage series are capped at top-N
plus our own, because an unbounded label set would be a cardinality bomb
if the network grows.

Prior art in Quantus-Network/qsafe.af derived miners from balance events
instead; the digest is lighter and unambiguous, and drops the GraphQL
indexer dependency entirely.

2026-08-31 19:58:02 +03:00

..

quantus.yml.tmpl

feat: arena exporter — network hashrate, difficulty, authorship leaderboard

2026-08-31 19:58:02 +03:00