# Recover missing source text

Source: https://musicnerd-docs.vercel.app/api-reference/knowledge/extract

Recover missing source text

## POST /api/artist/{id}/knowledge/sources/extract

Full OpenAPI specification: https://musicnerd-docs.vercel.app/spec/knowledge.json

## Authentication

This operation requires one of the security alternatives in the specification below. Security scheme definitions are included where present in the published specification.

[Authentication guide](https://musicnerd-docs.vercel.app/authentication)

## Operation and referenced schemas

```json
{
  "openapi": "3.1.0",
  "info": {
    "title": "Music Nerd shared artist knowledge — draft contract",
    "version": "1.0.0",
    "description": "Shared stored-evidence reads for approved claimants and administrators. Implementation preview contract; not released. No read initiates collection. Legacy extraction coverage is explicit; durable boundary storage and historical source versions remain unavailable."
  },
  "servers": [
    {
      "url": "https://musicnerd-api.vercel.app",
      "description": "Current API project; proposed routes are NOT available yet."
    }
  ],
  "paths": {
    "/api/artist/{id}/knowledge/sources/extract": {
      "post": {
        "operationId": "requestSourceExtraction",
        "summary": "Recover missing source text",
        "description": "Released with the source_extract schema migration. Queue one to twenty approved vault URL records with missing bodies. Existing originals and uploaded files are never overwritten. HTTP-only extraction records blocked/empty/unsupported results; it does not guarantee a complete article. Call deliberately from trusted host code, never during a read. Use research/status for results.\n\nRead `getResearchStatus` for `extractionOutcomes` on the returned job: source ID, result status, capture time, HTTP status, stored character count and truncation. A completed job means each selected source was attempted. A blocked or empty result does not supply original evidence.",
        "security": [
          {
            "privyBearer": []
          }
        ],
        "parameters": [
          {
            "name": "id",
            "in": "path",
            "required": true,
            "description": "Artist ID in this deployment environment. Authorize claimant/admin on each call.",
            "schema": {
              "type": "string",
              "format": "uuid"
            }
          }
        ],
        "requestBody": {
          "required": true,
          "content": {
            "application/json": {
              "schema": {
                "type": "object",
                "additionalProperties": false,
                "required": [
                  "sourceIds"
                ],
                "properties": {
                  "sourceIds": {
                    "type": "array",
                    "minItems": 1,
                    "maxItems": 20,
                    "uniqueItems": true,
                    "items": {
                      "type": "string",
                      "format": "uuid"
                    }
                  }
                }
              }
            }
          }
        },
        "responses": {
          "200": {
            "description": "Every selected eligible source already has text; no job queued.",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "jobId",
                    "queued"
                  ],
                  "properties": {
                    "status": {
                      "const": "ok"
                    },
                    "jobId": {
                      "type": [
                        "string",
                        "null"
                      ],
                      "format": "uuid"
                    },
                    "queued": {
                      "type": "integer",
                      "minimum": 0,
                      "maximum": 20
                    }
                  }
                }
              }
            }
          },
          "202": {
            "description": "Durable job queued; no fetching in the request.",
            "content": {
              "application/json": {
                "schema": {
                  "type": "object",
                  "required": [
                    "status",
                    "jobId",
                    "queued"
                  ],
                  "properties": {
                    "status": {
                      "const": "ok"
                    },
                    "jobId": {
                      "type": [
                        "string",
                        "null"
                      ],
                      "format": "uuid"
                    },
                    "queued": {
                      "type": "integer",
                      "minimum": 0,
                      "maximum": 20
                    }
                  }
                }
              }
            }
          },
          "400": {
            "description": "Invalid input.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Error"
                }
              }
            }
          },
          "401": {
            "description": "Missing or invalid access token.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Error"
                }
              }
            }
          },
          "403": {
            "description": "Not the approved claimant or an admin.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Error"
                }
              }
            }
          },
          "409": {
            "description": "A source extraction job is already pending or running for this artist.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Error"
                }
              }
            }
          },
          "503": {
            "description": "Storage unavailable; never represented as an empty successful corpus.",
            "content": {
              "application/json": {
                "schema": {
                  "$ref": "#/components/schemas/Error"
                }
              }
            }
          }
        }
      }
    }
  },
  "components": {
    "schemas": {
      "Error": {
        "type": "object",
        "additionalProperties": false,
        "properties": {
          "status": {
            "type": "string",
            "enum": [
              "error"
            ]
          },
          "error": {
            "type": "string"
          },
          "code": {
            "type": "string",
            "enum": [
              "invalid_input",
              "unauthenticated",
              "forbidden",
              "not_found",
              "revision_changed",
              "corpus_changed",
              "throttled",
              "storage_unavailable",
              "corpus_too_large",
              "response_too_large"
            ]
          }
        },
        "required": [
          "status",
          "error",
          "code"
        ]
      }
    },
    "securitySchemes": {
      "privyBearer": {
        "type": "http",
        "scheme": "bearer",
        "bearerFormat": "Access token",
        "description": "Existing authenticated Music Nerd user, approved artist claimant or admin. Credentials remain outside model arguments."
      }
    }
  }
}
```