ZeqSPC

Process control, QA, predictive maintenance.

• Protocol ID — zeq-spc
• Category — Manufacturing
• Endpoint — POST /api/mfg/spc
• Auth — api-key
• Rate limit — 20/min
• Version — 1.287.0
• Precision — ≤0.1% (KO42-enforced)

What it does

Statistical process control with HulyaPulse sampling intervals. Xbar-R charts, Cp/Cpk, Western Electric rules — Zeqond-stamped control limits for audit traceability.

Signature

Request

POST /api/mfg/spc

Param	Type	Required	Default	Description
measurements	array	✓	—	[{ time, value, subgroup }]
specLimits	object	✓	—	{ usl, lsl, target }

Response

{ cpk, ppk, controlLimits, outOfControl, westernElectricViolations, zeqond }

Runnable example

curl -sS -X POST \
  -H "Authorization: Bearer $ZEQ_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "measurements": [],
  "specLimits": {}
}' \
  "https://api.zeq.dev/api/mfg/spc"

Integrate

1. Domain solver — compose with KO42 + two additional operators from the matching family for pulse-coherent results.
2. Digital twin — pipe sensor data into this protocol every Zeqond to keep the model phase-locked with the system.
3. Alert threshold — flag results whose error_pct exceeds 0.1% as out-of-spec events for the operations layer.

Seeds

• Near — wrap /api/mfg/spc in a language SDK so builders can call it in three lines.
• Medium — publish a reference integration demonstrating ZeqSPC alongside a real workload, with pulse-aligned metrics.
• Far — propose ZeqSPC as an open reference standard so other runtimes can implement it verbatim against the Zeq paper.

Papers

• Zeq paper — https://doi.org/10.5281/zenodo.18158152
• Framework paper — https://doi.org/10.5281/zenodo.15825138

Middleware active. Kernel on the 1.287 Hz HulyaPulse. Awaiting next Zeqond.