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Crisis BFT consensus protocol — Go PoC, Python recorder, and CrisisViz: a native macOS scrubbable curriculum visualizer (10 chapters, ~18 minutes at 1×, signed-speed slider with reverse playback).
saymrwulf
c9689ec7e5
Dave creates two messages with the same author + same parent set but
different bodies (ζ_a "send 50 BTC to Aaron", ζ_b "send 50 BTC to
Charlie"). Sends one to Aaron, the other to Ben. Aaron and Ben gossip;
the conflict is detected; Dave's vertices get banned with a red X;
honest 3 converge.
Beat structure:
Scene 0 (47.5s) — Dave thinks ("I'll send different things"), then
composes ζ_a (5s slo-mo with red-ring slot
chrome to flag this is a fork), seals, repeats
for ζ_b (same identity, different body). Sends
ζ_a only to Aaron, ζ_b only to Ben.
Scene 1 (32s) — Aaron forwards his copy of ζ_a to Ben → Ben already
has ζ_b → fork detected. Threshold bar appears
(f=1, n=4, 3f<n). Both Dave-vertices banned.
AARON·BEN·CARL CONVERGE badge.
`Ch09Timeline.swift` (new) — 18 beats over ~80s. Beat kinds
introduced: `forkCompose` / `forkSeal` / `forkSend` / `forkAccept`
(envelope acceptance into a recipient's view), `gossipExchange`
(Aaron forwarding to Ben that triggers detection), `forkDetected`,
`thresholdBar` (f<n/3 visualization), `banDave` (red X across
Dave's lane forks + dim them in towers).
`Ch10_Byzantine.swift` rewritten end-to-end (269 → ~525 lines) to
render from Ch09Timeline. Two red-ringed fork vertices appear on
Dave's lane past the carry-forward {α..ε}. Composing slot for forks
gets a red border to flag the deception. Towers track each player's
fork-acceptance: Aaron picks up ζ_a, Ben picks up ζ_b then ζ_a from
gossip, Carl never receives either, Dave's own view stays clean of
the lies he wrote. Once banned, the fork blocks dim and a red X
overlays them.
`SceneEngine` gets duration overrides for Ch09's 2 scenes.
`ImmersiveView.liveNarration` extends to chapter 9.
Bundled, harness 55/55 invariants, 0 audit errors, 281 PNGs,
36/36 MP4 written.
Known polish item: Dave's thought bubble lands at Carl's lane Y
because the bubble is offset −80pt from the cast circle. Lower-lane
casts need a "below-instead-of-above" placement variant. Tracked
for next pass.
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
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| CrisisViz | ||
| src/crisis | ||
| tests | ||
| .gitignore | ||
| Crisis.mirco-richter-2019.pdf | ||
| crisis_data.json | ||
| pyproject.toml | ||