fork-divergence.md: a section for branch r3-fixes (the PoW-before-validation
reorder, the cache-build cap and the per-peer guard), the merge-overlap note for
the finality branch, and the updated "PoW before or after GHOSTDAG" and "Day
seed" open decisions. bench-log.md: the before-and-after attack numbers (50
bogus headers build 50 caches in 10.6 s before, 0 and all rejected in 14 ms
after), one cache builds in about 0.2 s, and the M16 Mac inline-dataset note.
Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
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