Correctness/completeness review of the report and simulator. Verified against
the committed parquets: the sec 6.6 countable-ceiling table (cap-64 MDP sweep),
sec 6.10 Result 4's depth ceilings, the sec 3.4 uncle-selection table, all
adversary-variant numbers, the rho-boundary row-4 quotes (0.976 at rho=0.91,
4-sigma shortfall at 0.96, max cell 1.0024), and the sec 8.4 capstone table.
Three defects found, all fixed:
1. The collapse event was not reproducible from the committed script. Study D
swept only the default (random) coalition, but the one observed collapse is
a whale cell; the "once in 144 runs" count came from an ad-hoc probe. The
committed sweep now carries the selection axis (96 runs) and reproduces the
event: 1/12 in the whale 50% cell at delta_max = 8, never at 4. All six
fold-related passages now quote the committed sweep, which also retires the
stale "the full dynamics never reach it" wording in the sec 6 arc, the
sec 6.2 intro, row 6 and item 1 -- text that contradicted item 18 since
yesterday's finding.
2. capstone.py's printout could not reproduce the report's sec 8.4 table. The
report's numbers are a per-replicate-tail aggregation (each replicate burns
in against its own early-stop length); the script cut the tail at the ARM's
max epoch, silently dropping any replicate that stopped earlier (7 of 8 in
the adversary arm) and landing one rounding step off on three cells. The
script now aggregates per replicate and prints the SEM; against the existing
parquet it reproduces the table exactly (1.001/0.998, 0.342+-0.009 /
0.343+-0.005, p_ref 1.000/0.990, 8 reps both arms). The report table was
right all along; sec 6.8's p_ref quote (0.989, the per-arm value) is aligned
to 0.990.
3. Small report fixes: slow-beta deflation rounded 0.765 -> "0.77" (now 0.76);
fig13's caption now points at the fig36 ceiling instead of implying free
recovery; row 5 cites the measured slow-beta standing deflation; the
canonical-data paragraph lists the new studies' artifacts; the simulator
README's layout block lists the new tests and scripts.
Adds a unit test for reorg.countable_recovery_from_depths (the one new
function that had none). 236 tests pass; the new-study parquets are copied to
the main checkout's runs/, where every other study's data of record lives.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Acts on a correctness/completeness review of the countable uncle model
and its report material.
Correctness fixes in the report:
- s3.4 quoted 0.998 for W_abs=10 at the 8s budget; the run says 0.9963.
- s1 claimed both models >= 0.996 at U >= 1; countable U=2 delta=8 is
0.9955. Corrected to >= 0.995.
- The s3.2 table presented two cells (U=1 at delta 16 and 32) as model
differences. They are not resolvable: t = 0.46 and 0.47 over 5
replicates. The table now carries +-SEM and a t per cell.
- s3.4 claimed the ~7-block-interval floor "carries over unchanged".
Accuracy is still climbing past W=7 at every delay (8s: 0.989 ->
0.996), so the claim is dropped. The 32s curve is non-monotonic with
replicate SD up to 0.22 and is now flagged as noise, not a trend.
- 1-r was attributed to the first-fork restriction alone; it is the
combined first-fork and capacity loss, which this measurement cannot
separate. Hedged to match fig32's own axis label.
Completeness: the U=0 negative control was swept but never reported.
With no uncles the two models are identical by construction, yet they
differ by -0.23 at delta_max=32 (t=2.1) because they draw independent
RNG streams. That is the noise floor the rest of the grid must clear,
and it is now in s3.2, s9, fig30 and the config header.
New study (configs/fine-delay.yaml, scripts/plot_fine_delay.py, s3.2a,
fig34/fig35): the design band delta_max 1-5 at 40 replicates, both
models. Findings: every U >= 1 cell of both models lands in
0.998-1.001, flat in delay, while U=0 decays 0.810 -> 0.640. No
individual cell resolves a model difference (widest 95% CI +-0.15pp;
max t=2.59 vs Bonferroni 2.94 over 15 cells). Pooled across uncle caps
the first-fork cost is monotone in delay and separates from zero only
at delta_max=5 (-0.0014 +- 0.0007, t=3.7) -- below 0.15% everywhere in
the band, against +-0.9% per-epoch sampling noise.
Code:
- deep_ref_share is identically 0 on every real countable run: for a
chain block B the producer's chain below B is the counting chain
below B, so the counting-side parent-on-chain re-check cannot reject
what selection emitted. It is a drift alarm, not a rate. Documented
as such in measure.py, the plot docstring and the config header, and
pinned by a new end-to-end test.
- Removed annotate_uncles: a second countable implementation that
production never called, while carrying most of the selection test
coverage. Tests now drive select_uncles_at_production through an
annotate_via_production replay helper -- same assertions, live path.
- Added tests for the two previously uncovered branches of the live
selection: the pmin/below chain walk that resolves parent-on-chain
for candidates whose parent sits below the window, and the
occupied-slot exclusion built from the chain walk.
- theory.q_effective and theory.window_miss_prob were unused and
untested. Now used (the prediction figure reconstructs q_u through
the identity the report quotes) and tested. The window_miss_prob test
records that its "~ e^-W" docstring is the f->0 limit: the true decay
is e^-1.017W at f=1/30, 16% off by W=10.
- Shared sem()/recovery_rate() moved into figures_pernode.py; fig30 and
fig33 regenerated with SEM error bars and the U=0 control curve.
- Fixed the pre-existing E501 in bootstrap_dynamics.py; ruff clean.
Report prose reworked to read standalone: the countable model is
described as the rules under analysis and the former model as a
labelled "unrestricted" comparison baseline, with no dated banners and
no round-to-round narration.
Tests: 209 passed (was 202).
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Implement the countable uncle model from the Cryptarchia spec's
counting-only reference rules, and make it the simulator default.
Counting rules (uncles.py, measure.py):
- Only the first block of a fork (parent on the producer's chain) is
referenceable and countable, which makes every reference verifiable
from chain data alone.
- The reference window is derived from a window-absorption parameter,
w_u = W_abs/f slots (W_abs in expected block-intervals, default 10,
bounded W_abs <= 0.6*k), replacing the free-standing uncle_window.
- Selection skips slots already occupied on the producer's chain and
takes at most one uncle per slot.
- The measurement pass re-checks every rule per reference and tallies
rejections as deep_ref_share.
The pre-redesign model is preserved behind --old on tsi-sweep and
tsi-verify. Its RNG key is byte-identical to the pre-uncle_model key,
so --old bit-reproduces the historical runs.
Supporting changes: uncle_model and window_absorption config surface
with validation (config.py, constants.py); accuracy closed form over
the effective q_u (theory.py); plumbing through tsi.py, epoch.py,
sweep.py, blocktree.py, metrics.py, verify.py, figures_pernode.py.
Studies and figures:
- configs/countable-vs-old.yaml -- delay x U grid, run under both
models on the same grid.
- configs/absorption-window.yaml -- accuracy vs W_abs at U=1.
- scripts/plot_countable_vs_old.py renders fig30-fig33 into
reports/tsi/report-figures/.
Tests: tests/test_countable_counting.py (7 cases) covering first-fork
eligibility, derived-window bounds, occupied-slot exclusion, and
per-reference re-checking; extensions to test_uncles.py,
test_config.py, test_slot_counting.py. Full fast suite: 202 passed.
Also adds CLAUDE.md (graphify project instructions) and ignores
editor/local-agent state plus the vendored Equi-X benchmark clone.
The reports/tsi/ prose describing this model is held back for a
separate editorial pass.
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
