Base-256 digits of Catalan's constant G = Σ(−1)ⁿ/(2n+1)². Irrationality and transcendence both unproven; normality unknown.
Standard analysis sees: rich, high-entropy values; aperiodic / broadband; high-complexity (noise-like); monofractal; high-dimensional / space-filling. The atlas detects no named structure beyond this.
Nothing beyond the standard reading — this source’s structure is already captured by standard features; the atlas adds no named residual.









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| Nearest neighbor | Distance | |
|---|---|---|
| ln(2) Digits | 1.66 | |
| Golden Ratio Digits | 1.69 | |
| Euler-Mascheroni γ Digits | 1.76 |
Attractor Reconstruction › Attractor Reconstruction:filling_ratio | rank 4/307 | 0.9825 |
AutoRegressive › AutoRegressive:ar_residual_frac | rank 3/307 | 0.9997 |
Higher-Order Statistics › Higher-Order Statistics:perm_entropy | rank 4/307 | 0.9993 |
Klein Bottle › Klein Bottle:rank_deficit | rank 303/307 | 0.0496 |
Ordinal Partition › Ordinal Partition:statistical_complexity | rank 304/307 | 0.0003 |