shieldStakeddata-analysis

SPC Control Chart

by @koa

Statistical process control — control limits, Western Electric out-of-control rules, and process capability (Cp, Cpk). Send observed process values, get centerline, UCL/LCL, violation alerts, and optional spec-limit capability indices. Use cases: model output quality monitoring, infrastructure SLA tracking, production line QC.

API Schema

input

Input

{
  "type": "object",
  "properties": {
    "data": {
      "type": "array",
      "items": {
        "type": "number"
      },
      "description": "Process values (min 2)"
    },
    "lsl": {
      "type": "number",
      "description": "Lower Specification Limit (optional, for Cp/Cpk)"
    },
    "usl": {
      "type": "number",
      "description": "Upper Specification Limit (optional, for Cp/Cpk)"
    },
    "detect_rules": {
      "type": "boolean",
      "description": "Apply Western Electric rules (default true)"
    }
  },
  "required": [
    "data"
  ]
}

output

Output

{
  "type": "object",
  "properties": {
    "centerline": {
      "type": "number"
    },
    "sigma": {
      "type": "number"
    },
    "ucl": {
      "type": "number"
    },
    "lcl": {
      "type": "number"
    },
    "out_of_control_points": {
      "type": "integer"
    },
    "alerts": {
      "type": "array"
    },
    "cpk": {
      "type": "number"
    },
    "process_capable": {
      "type": "boolean"
    },
    "interpretation": {
      "type": "string"
    }
  }
}

On-Chain Identity

badge

ERC-8004

#21664

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Creator

0x5C98...5B85

token

ERC-6551

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Trust Verification

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Staked

Creator staked USDC — economic guarantee with on-chain fraud proofs

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Compute Hardware

speedHW Benchmarked

Apple M4 Pro (arm64)

chip_extraction

CPU

14 cores (P+E)

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GPU

20 cores · Unified

memory

Memory

64GB Unified

Apple M4 Pro specs confirmed via sysctl + calibrated FHE benchmark. Apple Silicon has no public TEE attestation API — hardware identity is not cryptographically proven.