ExperimentEXP-2026-0018v0.1

PACC-Lab v0.11 — bidirectional cocycle and inverse consistency

Separates three properties: forward cocycle composition (survives, all families), round-trip inverse consistency (all pairwise round trips pass on the primary run, recover 3/3 at larger scale, but are sample-sensitive at small scale, weakest on the widest pair AC), and reverse transport fidelity to the destination chart (fails for every family: direct C → A latent fidelity 0.0116–0.0148 > 0.01 while direct and composed reverse paths agree to ≈ 10⁻⁵).

Research status: STABLE the current conclusions are relatively stable
Evidence level: E3 Repeated experiment
Result: MIXED
Data basis: SYNTHETIC Synthetic data and theoretical reasoning. Many now treat synthetic data as if it were real; this laboratory says the opposite deliberately — until a real hybrid model exists, an inference is only an inference, and theoretically possible is not actually possible.
Version: 0.1
Updated: 2026-09-09
Created: 2026-09-09
Domain: Model Representation, Evaluation, Formal AI
Program: PRG-2026-0001 Adaptive Epistemic Systems
Authors: Neo.K (EveMissLab)
AI collaborators: Sol (GPT-5.6, OpenAI ChatGPT)

Hypothesis

hypothesis: The local transitions form a groupoid: forward cocycle, inverse consistency and reverse destination fidelity all hold.

Setup

model_ids: MOD-2026-0001 N0 — signed support
MOD-2026-0002 N1 — ordinal tournament
MOD-2026-0003 N2 — signed graph
MOD-2026-0004 N3 — constraint competition
MOD-2026-0005 Bayesian reference (exact posterior / Beta-Bernoulli / joint common-cause / HMM)
dataset_ids: DAT-2026-0001 PACC synthetic evidence worlds
benchmark_ids: BEN-2026-0001 PACC micro-lab protocol v0.1 (frozen gates)
software_environment: Python; deterministic seeded generators; no network, no LLM.

Runs

run_count

random_seeds

20260909
4 secondary seeds
3 primary-scale-ish seeds

controls

shuffled-target mapping
constant prediction
broken composition (v0.6+)
target-local refit (v0.7+)

metrics

verdict

PARTIAL BIDIRECTIONAL COHERENCE WITH REVERSE DESTINATION BIAS

forward_cocycle

PASS all families

inverse_pairs_primary

PASS all

inverse_pairs_large_scale

3/3

reverse_fidelity

N0: 0.01162
N2: 0.01476
N3: 0.01355
gate: 0.01

reverse_direct_vs_composed_latent_js

7e-05 to 1e-04

reverse_pass_rate

0/4 and 0/3

Interpretation

interpretation: RoundTripInvertibility ⇏ DestinationChartFidelity and PathCoherence ⇏ GroupoidClosure: a directionally coherent calibration structure with a persistent reverse latent bias, not a closed local groupoid under the affine transition class.

Limitations

limitations: Does not establish nonlinear-transition impossibility, manifold structure or full atlas coverage.

Reproduction

reproduction_instructions: Extract the version's FINAL bundle; python -m pytest -q; run the version's primary script with the recorded seed; docs/PACC_LAB_v0.N_RESULTS.md and docs/EXPERIMENT_PROTOCOL_v0.N.md are inside the bundle.

Results

Source	Relation	Target	Status	ID
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`produces`	`RST-2026-0012` v0.11 reverse destination bias	`ACTIVE`	`REL-2026-0289`

Recorded fields

completed_at: 2026-09-09

Relations

Source	Relation	Target	Status	ID
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`runs_on`	`SYS-2026-0002` PACC-Lab — micro-lab harness for the convergence conjecture	`ACTIVE`	`REL-2026-0278`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_benchmark`	`BEN-2026-0001` PACC micro-lab protocol v0.1 (frozen gates)	`ACTIVE`	`REL-2026-0279`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_dataset`	`DAT-2026-0001` PACC synthetic evidence worlds	`ACTIVE`	`REL-2026-0280`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_model`	`MOD-2026-0001` N0 — signed support	`ACTIVE`	`REL-2026-0281`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_model`	`MOD-2026-0002` N1 — ordinal tournament	`ACTIVE`	`REL-2026-0282`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_model`	`MOD-2026-0003` N2 — signed graph	`ACTIVE`	`REL-2026-0283`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_model`	`MOD-2026-0004` N3 — constraint competition	`ACTIVE`	`REL-2026-0284`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`uses_model`	`MOD-2026-0005` Bayesian reference (exact posterior / Beta-Bernoulli / joint common-cause / HMM)	`ACTIVE`	`REL-2026-0285`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`tests`	`THY-2026-0005` PACC conjecture — the four-level convergence ladder	`ACTIVE`	`REL-2026-0286`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`extends`	`EXP-2026-0017` PACC-Lab v0.10 — oriented cocycle coherence on frozen triple overlap	`ACTIVE`	`REL-2026-0287`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`produced`	`ART-2026-0031` PACC-Lab v0.11 Bidirectional Groupoid FINAL `artifact://evemisslab/adaptive-epistemic-systems/PACC-Lab_v0.11_Bidirectional_Groupoid_FINAL.zip`	`ACTIVE`	`REL-2026-0288`
`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`produces`	`RST-2026-0012` v0.11 reverse destination bias	`ACTIVE`	`REL-2026-0289`
`EXP-2026-0019` PACC-Lab v0.12 — bounded quadratic transition	`extends`	`EXP-2026-0018` PACC-Lab v0.11 — bidirectional cocycle and inverse consistency	`ACTIVE`	`REL-2026-0300`

History and provenance

Canonical URL

https://evemisslab.com/ai/experiments/EXP-2026-0018/

Machine-readable

/ai/experiments/EXP-2026-0018/index.json

Snapshot

AI-SNAPSHOT-v0.1-fe85b9694a45

Provenance

source: EveMissLab research collection: Adaptive Epistemic Systems (真本體論13)
extracted_by: Splice (Claude Code), reading the canonical UTF-8 sources and each lab's own result reports
extracted_at: 2026-09-11
generator: tools/extract_aes/extract.py
claim_boundary: status, evidence level and result type follow the source artifact's own stated claim boundary; nothing is upgraded beyond what the report supports