{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://raw.githubusercontent.com/api-evangelist/patch-io/main/json-schema/patch-io-project-schema.json",
  "title": "Patch Project",
  "description": "A verified carbon project listed on Patch.",
  "type": "object",
  "required": ["id", "name", "mechanism"],
  "properties": {
    "id": { "type": "string", "description": "Patch project identifier." },
    "production": { "type": "boolean" },
    "name": { "type": "string" },
    "description": { "type": "string" },
    "mechanism": { "type": "string", "enum": ["removal", "avoidance"] },
    "country": { "type": "string", "description": "ISO 3166-1 alpha-2 country code." },
    "state": { "type": "string" },
    "issuance_type": { "type": "string" },
    "latitude": { "type": "number" },
    "longitude": { "type": "number" },
    "project_partner": { "type": "string" },
    "verifier": { "type": "string" },
    "tagline": { "type": "string" },
    "standard": {
      "type": "object",
      "properties": {
        "type": { "type": "string" },
        "acronym": { "type": "string" }
      }
    },
    "technology_type": {
      "type": "object",
      "properties": {
        "slug": { "type": "string" },
        "name": { "type": "string" },
        "parent_technology_type": {
          "type": "object",
          "properties": {
            "slug": { "type": "string" },
            "name": { "type": "string" }
          }
        }
      }
    },
    "sdgs": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "number": { "type": "integer" },
          "title": { "type": "string" },
          "description": { "type": "string" }
        }
      }
    },
    "inventory": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "vintage_year": { "type": ["integer", "null"] },
          "vintage_start_year": { "type": ["integer", "null"] },
          "vintage_end_year": { "type": ["integer", "null"] },
          "amount_available": { "type": "integer", "description": "Available mass in grams." },
          "price": { "type": "integer" },
          "currency": { "type": "string" }
        }
      }
    },
    "photos": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "id": { "type": "string" },
          "url": { "type": "string", "format": "uri" }
        }
      }
    }
  }
}