{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://huggingface.co/datasets/OpenChainBench/benchmarks/blob/main/schemas/providers.schema.json",
  "title": "OCB providers row",
  "description": "One row per (bench, provider, snapshot_date). Detailed ranking with percentiles plus provider type / layer / tag classification.",
  "type": "object",
  "required": [
    "snapshot_date",
    "captured_at",
    "bench_slug",
    "provider_slug",
    "schema_version"
  ],
  "properties": {
    "snapshot_date":        { "type": "string", "format": "date" },
    "captured_at":          { "type": "string", "format": "date-time" },
    "bench_slug":           { "type": "string" },
    "provider_name":        { "type": "string" },
    "provider_slug":        { "type": "string" },
    "provider_type":        { "type": ["string", "null"] },
    "provider_layer":       { "type": ["string", "null"] },
    "provider_tag":         { "type": ["string", "null"] },
    "p50":                  { "type": ["number", "null"] },
    "p90":                  { "type": ["number", "null"] },
    "p99":                  { "type": ["number", "null"] },
    "mean":                 { "type": ["number", "null"] },
    "success_rate":         { "type": ["number", "null"] },
    "provider_sample_size": { "type": ["number", "null"] },
    "is_leader":            { "type": "boolean" },
    "schema_version":       { "type": "integer", "minimum": 1 }
  }
}