{
  "$schema": "https://json-schema.org/draft-07/schema#",
  "title": "BenchmarkSubmission",
  "description": "One row from the Research Paper Read iOS app's on-device benchmark.",
  "type": "object",
  "required": [
    "submission_id", "bench_version", "device_id", "device_name",
    "ios_version", "app_version", "model_name", "model_quant",
    "context_size", "thread_count", "prompt_tps", "gen_tps",
    "prompt_tokens", "generated_tokens", "total_time_s",
    "thermal_state", "is_charging", "is_simulator"
  ],
  "properties": {
    "submission_id":    { "type": "string", "description": "Client-generated UUID. Submissions with the same id are deduped." },
    "bench_version":    { "type": "integer", "minimum": 1, "description": "Bumped when the bundled prompt / token budget / sampling changes." },
    "device_id":        { "type": "string", "description": "sysctl hw.machine (e.g. iPhone17,2)." },
    "device_name":      { "type": "string", "description": "Human-readable mapping; falls back to device_id if unknown." },
    "ios_version":      { "type": "string" },
    "app_version":      { "type": "string", "description": "CFBundleShortVersionString (+build)." },
    "model_name":       { "type": "string", "description": "e.g. Qwen3.5-4B." },
    "model_quant":      { "type": "string", "description": "e.g. Q4_K_M." },
    "context_size":     { "type": "integer", "minimum": 1 },
    "thread_count":     { "type": "integer", "minimum": 1 },
    "prompt_tps":       { "type": "number", "exclusiveMinimum": 0 },
    "gen_tps":          { "type": "number", "exclusiveMinimum": 0 },
    "prompt_tokens":    { "type": "integer", "minimum": 0 },
    "generated_tokens": { "type": "integer", "minimum": 0 },
    "total_time_s":     { "type": "number", "exclusiveMinimum": 0 },
    "thermal_state":    { "type": "string", "enum": ["nominal", "fair", "serious", "critical"] },
    "is_charging":      { "type": "boolean" },
    "is_simulator":     { "type": "boolean" },
    "server_received_at": { "type": "integer", "description": "Unix timestamp added by the Space on accept." }
  }
}