{
  "schema": "mvps-cwt-overhead-receipt-v1",
  "issued_at": "2026-05-25T20:30:24Z",
  "platform": {
    "system": "Windows",
    "release": "11",
    "machine": "AMD64",
    "processor": "Intel64 Family 6 Model 154 Stepping 3, GenuineIntel",
    "python": "3.12.1"
  },
  "params": {
    "warmup_iters": 2000,
    "iters_fast": 200000,
    "iters_slow": 30000,
    "payload_bytes": 497,
    "scale_assumption": {
      "n_vantages": 1000,
      "tick_hz": 1,
      "snaps_per_sec": 1000
    }
  },
  "operations": [
    {
      "op": "json_encode",
      "iters": 200000,
      "median_ns": 6100.0,
      "mean_ns": 6514.117,
      "p95_ns": 8300.0,
      "p99_ns": 12100.0,
      "ops_per_sec": 163934.4262295082,
      "bytes_in": 497
    },
    {
      "op": "json_decode",
      "iters": 200000,
      "median_ns": 4200.0,
      "mean_ns": 4613.4415,
      "p95_ns": 6700.0,
      "p99_ns": 9900.0,
      "ops_per_sec": 238095.2380952381,
      "bytes_in": 497
    },
    {
      "op": "sha256",
      "iters": 200000,
      "median_ns": 700.0,
      "mean_ns": 761.165,
      "p95_ns": 800.0,
      "p99_ns": 900.0,
      "ops_per_sec": 1428571.4285714286,
      "bytes_in": 497
    },
    {
      "op": "hmac_sha256_CWT_hot",
      "iters": 200000,
      "median_ns": 2100.0,
      "mean_ns": 2369.4365,
      "p95_ns": 3300.0,
      "p99_ns": 4900.0,
      "ops_per_sec": 476190.4761904762,
      "bytes_in": 497
    },
    {
      "op": "hkdf_sha256_per_epoch",
      "iters": 200000,
      "median_ns": 4100.0,
      "mean_ns": 4343.2475,
      "p95_ns": 4800.0,
      "p99_ns": 6800.0,
      "ops_per_sec": 243902.43902439025,
      "bytes_in": 497
    },
    {
      "op": "ed25519_sign_Trust",
      "iters": 30000,
      "median_ns": 28700.0,
      "mean_ns": 29929.726666666666,
      "p95_ns": 34700.0,
      "p99_ns": 52200.0,
      "ops_per_sec": 34843.20557491289,
      "bytes_in": 497
    },
    {
      "op": "ed25519_verify_Trust",
      "iters": 30000,
      "median_ns": 78800.0,
      "mean_ns": 83337.96666666666,
      "p95_ns": 109100.0,
      "p99_ns": 164300.0,
      "ops_per_sec": 12690.355329949238,
      "bytes_in": 497
    }
  ],
  "derived": {
    "cwt_hot_path_us_per_snapshot": 2.1,
    "trust_hot_path_us_per_snapshot": 78.8,
    "baseline_json_decode_us": 4.2,
    "cwt_load_pct_of_one_core_at_1000Hz": 0.21,
    "trust_load_pct_of_one_core_at_1000Hz": 7.88,
    "baseline_load_pct_of_one_core_at_1000Hz": 0.42,
    "overhead_ratio_cwt_over_baseline_jsondecode": 0.5,
    "overhead_ratio_trust_over_baseline_jsondecode": 18.761904761904763,
    "speedup_cwt_over_trust": 37.523809523809526
  },
  "claims_supported": [
    "Section 14.1 of draft-melegassi-santos-ippm-mvps-cwt-00",
    "Section 9 of MVPS_CWT_MATHEMATICAL_PROOF.txt",
    "T-AUTH-CWT-1 numerical cost"
  ]
}