feat: accelerator fees by pool, on the bitcoin post - #39
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One stacked column per month of mempool.space accelerator fees, split by the pool that took them, from mempool-space-by-month.json. Figures are BTC to three significant digits; the exact sats stay in the readout and in every hover title. The axis is linear and stays linear. A band's height is the amount that pool took and the top of a column is the month's total. A log axis reads better -- months run from 0.004 BTC to 2.9 -- but stacking on a log scale plots the running total, which leaves band heights meaning nothing. The reader zooms instead: clicking a pool refits the axis to that pool's own months, which is the only way a pool worth a tenth of a percent gets a readable plot. Bands get no minimum height either, so they stay exactly proportional; a pool too small to see is still reachable from the legend. Hovering a pool drops the other thirteen, clicking keeps it alone, and moving across the plot sets a month cursor that rewrites the readout and every legend figure to that month. Pools rank by lifetime total and take palette slots in that order, so the biggest is always the floor of the stack and a pool keeps one color everywhere. That needed fourteen slots, so --pool-1..4 are now aliases onto a merged --series-1..14 rather than a second palette; --pool-5 stays its own neutral because it is the residual bucket, not a series. Existing figures render unchanged. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Clicking a pool snapped to the isolated chart. The bands of the other thirteen pools were filtered out of the tree, and a node React unmounts cannot be tweened. Every band now stays mounted. The ones not chosen are driven to zero height and zero opacity, so the stack drops to the floor while the chosen pool slides down and grows into the refitted axis. Axis labels and gridlines are keyed by slot rather than by tick value, so they survive a rescale and slide instead of swapping. .chart-move carries the timing: geometry eases over 320ms, opacity over 140ms, and the inline transitionDelay staggers geometry by column while leaving opacity at zero delay -- a hover has to dim now, not a third of a second later. Reduced motion keeps the opacity and drops the rest. Also drops the sats line under the BTC figure in the readout. The line keeps its height so selecting a pool does not shift the chart. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
- Title reads "BTC offchain fee published by mempool.space" instead of
"accelerator fees paid, by pool" -- names the source and the figure
the way the rest of the post does.
- Readout and legend rows use ₿ instead of the "BTC"/"sats" text --
bigger in the readout, dim and inline in the legend rows. The sats
line under the big figure is dropped; the readout keeps its own
height (min-h) so picking a pool does not shift the chart.
- Legend header row ("pool · every month") is dropped -- "show all"
keeps its slot on the right so removing it does not shift the grid.
- Legend goes to a fixed two-column grid; the three-column layout on
wide viewports was clipping pool names once the ₿ mark landed after
the figure.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Escape now clears `selected`, same effect as the "show all" button, so a keyboard user can back out of a one-pool view without a mouse. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
The share line and the legend's "show all" row used min-h with no line-height, so their box grew past the reserved minimum once text appeared, shifting the legend down. Pin height and line-height instead. Also drop mempool-space-by-pool.json, reconstructible from mempool-space-by-month.json, and remove the Escape-key handler for the isolated pool view (not needed). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
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Adds a diagram at the top of the bitcoin post: mempool.space accelerator fees per month, split by the pool that took them, from the
mempool-space-by-month.jsonfile already in the repo.What it draws
One stacked column per month. Figures are BTC to three significant digits; the exact sats stay in the readout's second line and in every hover title — rounded BTC to read, sats to check.
Interactions, as asked:
The axis, and why it is linear
Months run from 0.004 BTC to 2.89, so most columns are short next to jan 2024 and jun 2026. A log axis fixes that but breaks the figure: stacking on a log scale plots the running total, so the line between two colors is the cumulative sum and a band's height stops meaning anything. It was tried and dropped. No caption repairs a figure the eye reads wrong.
So the scale stays linear and the reader zooms instead.
axisMaxfits the ceiling to whatever is on screen and rounds it to an even tick step, so clicking a pool refits the axis to that pool's own months — OCEAN alone gets a 0–0.003 BTC plot where its eleven months are readable, where in the full stack it is invisible. That is honest: it is 0.03% of the total.Bands get no minimum height either, so they stay exactly proportional. A pool too small to see in the stack is still reachable from the legend. Two tests pin this down:
positionis the plain ratio, and a month's drawn bands sum to exactly that month's own height.Palette
One color per pool needs fourteen slots. Rather than add a second palette,
--pool-1..4are now aliases onto a merged--series-1..14, so a pool keeps one color across every figure on the site.--pool-5stays its own neutral — it is the residual bucket that.pool-resthatches, not a series. Existing figures render unchanged.Reviewer notes
—. A month with no data is not a month with zero.2024-01is the tallest column in the chart. Separately, jun 2026 is 25% of all 33 months, with every pool up 24–200× together and a normal pool mix; that is either a real congestion event or a pipeline fault, and this file cannot tell which.npm run verifypasses: prettier clean, 0 type errors, build succeeds, 58 tests (18 new).🤖 Generated with Claude Code