The hero canvas now has a live path fed by the same 2 s fetch as the chain scene (one poller, three subscribers: hero, stats strip, chain scene). When the observer is fresh each dot is one miner seen in the last ten minutes (at most 24, no id drawn), it flashes ember when that miner finds a sampled block, and faint lines reach the miners of the block's parents for a moment. Dots join on a new miner and fade out when one leaves the ten-minute set. The drift, colours and pace are the simulation's; the simulation runs unchanged when the observer is off or stale.
A live stats strip under the hero buttons (miners active, blocks / s, network hash rate, blocks on the devnet) shows only while the observer is fresh and hides again when it goes stale. Two tiles per row at phone width.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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