Cubic-Pisot Sturmian-like: substitution a→ab, b→ac, c→a. Substitution matrix [[1,1,0],[1,0,1],[1,0,0]] has eigenvalue Tribonacci constant ≈1.839 (real root of x³=x²+x+1). Ternary alphabet, cubic algebraic ratio --- a degree-3 Pisot contrast class against degree-2 Fibonacci/Pell.
Standard analysis sees: few distinct values; anti-correlated (alternating); anti-persistent; blue spectrum (high-frequency power); strongly periodic; homoskedastic; monofractal; stationary. The atlas finds no named structure, but the source is distinctively extreme on Julia Set:potential_variance (+4.8z) — beyond what the standard bank predicts for it.
Julia Set:potential_variance | +4.8z | bank-miss 2.1σ |
Julia Set:potential_smoothness | +4.6z | bank-miss 2.0σ |
Modular Residue:cycle_fraction | +3.1z | bank-miss 1.7σ |
Fixed alphabet — only 3 distinct symbols across 16384 samples.








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| Nearest neighbor | Distance | |
|---|---|---|
| Pell Word | 4.24 | |
| Penrose Substitution | 4.50 | |
| Padovan Word | 4.75 |
Catch24 › Catch24:SC_FluctAnal_2_dfa_50_1_2_logi_prop_r1 | rank 298/298 | 0.1200 |
Multi-Scale Wasserstein › Multi-Scale Wasserstein:w_max_ratio | rank 3/298 | 1526.7181 |
Sol (Thurston) › Sol (Thurston):sol_step_persistence | rank 295/298 | -0.1236 |
Time Reversibility › Time Reversibility:increment_skewness_max | rank 295/298 | 0.0006 |