Universal Operators operators
12 operators in the universal_operators category of the live registry. Each is a named formula you can compose inside a state contract or call directly through POST /api/zeq/compute. KO42 is always on; add up to three more per call (total ≤ 4), per the 7-step protocol.
| Operator | Description | Equation |
|---|---|---|
UNO1 | Planetary boundary operator: normalized ratio of current to pre-industrial concentration against threshold, measuring safe operating space. | B_i = \frac{C_{current} - C_{pre-industrial}}{C_{threshold} - C_{pre-industrial}}, \quad 0 \leq B_i \leq 1 \text{ safe} |
UNO10 | Ecological footprint operator: sum of land-use demands with equivalence and yield factors, compared to biocapacity. | EF = \sum_i \frac{C_i}{Y_i} \cdot EQF_i \cdot YF_i, \quad BA = \frac{EF}{BC} |
UNO11 | Natural capital operator: initial stock plus cumulative investment minus depletion minus depreciation over time. | K_{natural}(t) = K_0 + \int_0^t [I(\tau) - D(\tau)] d\tau - \delta K(\tau) |
UNO12 | Tipping cascade operator: probability of cascading tipping events through networked Earth system elements with neighbor amplification. | P_{cascade} = 1 - \prod_{i=1}^n \left[1 - p_i \cdot (1 + \alpha \sum_{j\in\mathcal{N}(i)} p_j)\right] |
UNO13 | Restoration trajectory operator: logistic recovery toward maximum with disturbance decay and facilitation-driven acceleration. | \frac{dR}{dt} = \alpha (R_{max} - R) - \beta R \cdot D + \gamma R(1 - R) \cdot C_{facilitation} |
UNO14 | Universal nature operator: matrix-driven ecosystem state evolution with logistic saturation, spatial diffusion, human forcing, and stochastic noise. | \frac{d\vec{N}}{dt} = A\vec{N} + B\vec{N} \circ (1 - \vec{N}) + C\nabla^2 \vec{N} + \vec{F}{human} + \vec{\eta}{stochastic} |
UNO2 | Biosphere integrity operator: weighted sum of genetic diversity, functional diversity, and ecosystem resilience metrics. | I = \alpha \cdot H_{genetic} + \beta \cdot F_{functional} + \gamma \cdot R_{resilience} |
UNO3 | Nature contribution operator: weighted biodiversity change rates scaled by area, value, and degradation resistance. | NCP = \sum_i w_i \cdot \frac{dB_i}{dt} \cdot A_i \cdot V_i \cdot (1 - R_{degradation}) |
UNO6 | Ecological memory operator: exponentially-weighted historical integral of ecosystem disturbance events with baseline memory. | M(t) = \int_0^t E(\tau) \cdot \exp\left[-\frac{t-\tau}{\lambda}\right] d\tau + M_0 e^{-t/\lambda} |
UNO7 | Regime shift operator: bistable logistic dynamics with Hill-function harvesting and stochastic perturbation for tipping-point detection. | \frac{dx}{dt} = rx\left(1 - \frac{x}{K}\right) - \frac{cx^2}{x^2 + h^2} + \eta(t) |
UNO8 | Nature-based solutions operator: benefit-cost ratio of avoided emissions, carbon removal, and co-benefits versus implementation costs. | E_{NBS} = \frac{C_{avoided} + C_{removed} + B_{co-benefits}}{C_{implementation} + C_{maintenance}} |
UNO9 | Biocultural diversity operator: geometric mean of biological and cultural Shannon entropies scaled by linkage strength. | D_{biocultural} = \sqrt{H_{biological} \cdot H_{cultural}} \cdot C_{linkage} |
Compute with one of these
curl -sS -X POST https://zeqsdk.com/api/zeq/compute \
-H "Authorization: Bearer $ZEQ_KEY" \
-H "Content-Type: application/json" \
-d '{"operators":["UNO1"],"inputs":{}}'
The response carries the bare physics value, its unit and uncertainty, the generated master equation, and a signed envelope you can verify on any node.
See also
- The solvers — how an operator becomes a physical answer
- Operator selection — how a query picks operators
- All categories — the full reference index