diff --git a/doc/result.json b/doc/result.json
new file mode 100644
index 00000000..5a94cf20
--- /dev/null
+++ b/doc/result.json
@@ -0,0 +1,643 @@
+{
+  "$defs": {
+    "OptimizationResult": {
+      "description": "The result of a single optimization.",
+      "properties": {
+        "id": {
+          "description": "Unique identifier for the optimization result. Multi-start local optimizations should be separated for each startpoint.",
+          "title": "Id",
+          "type": "string"
+        },
+        "optimizer": {
+          "allOf": [
+            {
+              "$ref": "#/$defs/VersionedMetadata"
+            }
+          ],
+          "description": "Metadata on the optimizer used."
+        },
+        "startpoint": {
+          "anyOf": [
+            {
+              "items": {
+                "type": "number"
+              },
+              "type": "array"
+            },
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            }
+          ],
+          "description": "Starting point(s) for the optimization. May be multiple incase of swarm based optimizers. Dimension: (n_parameters) | (n_starts, n_parameters)",
+          "title": "Startpoint"
+        },
+        "endpoint": {
+          "description": "End point of the optimization. Dimension: (n_parameters)",
+          "items": {
+            "type": "number"
+          },
+          "title": "Endpoint",
+          "type": "array"
+        },
+        "fval": {
+          "description": "Final value of the objective function.",
+          "title": "Fval",
+          "type": "number"
+        },
+        "fval0": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Initial value of the objective function.",
+          "title": "Fval0"
+        },
+        "grad": {
+          "anyOf": [
+            {
+              "items": {
+                "type": "number"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Gradient at the endpoint. Dimension: (n_parameters)",
+          "title": "Grad"
+        },
+        "hess": {
+          "anyOf": [
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Hessian at the endpoint. Dimension: (n_parameters, n_parameters)",
+          "title": "Hess"
+        },
+        "history": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Link to file of History of the optimization process",
+          "title": "History"
+        }
+      },
+      "required": [
+        "id",
+        "optimizer",
+        "startpoint",
+        "endpoint",
+        "fval"
+      ],
+      "title": "OptimizationResult",
+      "type": "object"
+    },
+    "OptimizeResult": {
+      "description": "Optimization result for multiple optimization starts.",
+      "properties": {
+        "optimization_result": {
+          "items": {
+            "$ref": "#/$defs/OptimizationResult"
+          },
+          "title": "Optimization Result",
+          "type": "array"
+        }
+      },
+      "required": [
+        "optimization_result"
+      ],
+      "title": "OptimizeResult",
+      "type": "object"
+    },
+    "PetabProblemSnapshot": {
+      "description": "The PEtab problem as it was used for result generation.\n\nExtensive description of the PEtab data format can be found\nat https://petab.readthedocs.io/en/latest/documentation_data_format.html.",
+      "properties": {
+        "measurement_df": {
+          "items": {
+            "type": "object"
+          },
+          "title": "Measurement Df",
+          "type": "array"
+        },
+        "observable_df": {
+          "items": {
+            "type": "object"
+          },
+          "title": "Observable Df",
+          "type": "array"
+        },
+        "condition_df": {
+          "items": {
+            "type": "object"
+          },
+          "title": "Condition Df",
+          "type": "array"
+        },
+        "parameter_df": {
+          "items": {
+            "type": "object"
+          },
+          "title": "Parameter Df",
+          "type": "array"
+        },
+        "sbml_file": {
+          "description": "SMBL model as a string representation",
+          "title": "Sbml File",
+          "type": "string"
+        }
+      },
+      "required": [
+        "measurement_df",
+        "observable_df",
+        "condition_df",
+        "parameter_df",
+        "sbml_file"
+      ],
+      "title": "PetabProblemSnapshot",
+      "type": "object"
+    },
+    "ProfileResult": {
+      "description": "Profile results for multiple parameters and/or methods.",
+      "properties": {
+        "profile_results": {
+          "items": {
+            "$ref": "#/$defs/ProfilingResult"
+          },
+          "title": "Profile Results",
+          "type": "array"
+        }
+      },
+      "required": [
+        "profile_results"
+      ],
+      "title": "ProfileResult",
+      "type": "object"
+    },
+    "ProfilingResult": {
+      "description": "Profiling result for a single parameter profile.",
+      "properties": {
+        "id": {
+          "description": "Unique identifier for the profiling result",
+          "title": "Id",
+          "type": "string"
+        },
+        "profile_method": {
+          "$ref": "#/$defs/VersionedMetadata"
+        },
+        "profile_settings": {
+          "title": "Profile Settings",
+          "type": "object"
+        },
+        "profile_parameter_id": {
+          "description": "ID of the profiled parameter",
+          "title": "Profile Parameter Id",
+          "type": "string"
+        },
+        "profile_startpoint": {
+          "anyOf": [
+            {
+              "items": {
+                "type": "number"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Parameter vector from which the profile was started",
+          "title": "Profile Startpoint"
+        },
+        "profile_parameter_trace": {
+          "anyOf": [
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Dimension: (trace_length, n_parameters)",
+          "title": "Profile Parameter Trace"
+        },
+        "profile_objective_trace": {
+          "anyOf": [
+            {
+              "items": {
+                "type": "number"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Dimension: (trace_length)",
+          "title": "Profile Objective Trace"
+        },
+        "profile_confidence_interval": {
+          "anyOf": [
+            {
+              "maxItems": 2,
+              "minItems": 2,
+              "prefixItems": [
+                {
+                  "type": "number"
+                },
+                {
+                  "type": "number"
+                }
+              ],
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Confidence interval for the profile",
+          "title": "Profile Confidence Interval"
+        },
+        "profile_confidence_level": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Confidence level for the profile",
+          "title": "Profile Confidence Level"
+        }
+      },
+      "required": [
+        "id",
+        "profile_method",
+        "profile_settings",
+        "profile_parameter_id"
+      ],
+      "title": "ProfilingResult",
+      "type": "object"
+    },
+    "SampleResult": {
+      "description": "Sample result for multiple sampling executions.",
+      "properties": {
+        "sampling_results": {
+          "items": {
+            "$ref": "#/$defs/SamplingResult"
+          },
+          "title": "Sampling Results",
+          "type": "array"
+        }
+      },
+      "required": [
+        "sampling_results"
+      ],
+      "title": "SampleResult",
+      "type": "object"
+    },
+    "SamplingResult": {
+      "description": "Sampling result for a single sampling execution with one or more chains.",
+      "properties": {
+        "id": {
+          "description": "Unique identifier for the sampling result",
+          "title": "Id",
+          "type": "string"
+        },
+        "sampler": {
+          "$ref": "#/$defs/VersionedMetadata"
+        },
+        "sampler_settings": {
+          "description": "Settings for the sampler",
+          "title": "Sampler Settings",
+          "type": "object"
+        },
+        "parameter_startpoints": {
+          "anyOf": [
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "items": {
+                "type": "number"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Dimension: (n_chains, n_parameters) or (n_parameters)",
+          "title": "Parameter Startpoints"
+        },
+        "samples": {
+          "anyOf": [
+            {
+              "items": {
+                "items": {
+                  "items": {
+                    "type": "number"
+                  },
+                  "type": "array"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Dimension: (n_chains, n_samples, n_parameters) or (n_samples, n_parameters)",
+          "title": "Samples"
+        },
+        "parameter_trace": {
+          "anyOf": [
+            {
+              "items": {
+                "items": {
+                  "items": {
+                    "type": "number"
+                  },
+                  "type": "array"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Dimension (n_chains, trace_length, n_parameters) or (trace_length, n_parameters)",
+          "title": "Parameter Trace"
+        },
+        "log_posterior_trace": {
+          "anyOf": [
+            {
+              "items": {
+                "items": {
+                  "type": "number"
+                },
+                "type": "array"
+              },
+              "type": "array"
+            },
+            {
+              "items": {
+                "type": "number"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Dimension: (n_chains, trace_length) or (trace_length)",
+          "title": "Log Posterior Trace"
+        },
+        "number_of_chains": {
+          "anyOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Number of chains used in the sampling",
+          "title": "Number Of Chains"
+        },
+        "burn_in": {
+          "anyOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Number of burn-in samples",
+          "title": "Burn In"
+        },
+        "thinning": {
+          "anyOf": [
+            {
+              "type": "integer"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "default": null,
+          "description": "Thinning factor",
+          "title": "Thinning"
+        }
+      },
+      "required": [
+        "id",
+        "sampler",
+        "sampler_settings"
+      ],
+      "title": "SamplingResult",
+      "type": "object"
+    },
+    "VersionedMetadata": {
+      "additionalProperties": true,
+      "description": "Any kind of Metadata (e.g. packages) including version.\n\nAdditonal info may be added.",
+      "properties": {
+        "id": {
+          "title": "Id",
+          "type": "string"
+        },
+        "version": {
+          "title": "Version",
+          "type": "string"
+        }
+      },
+      "required": [
+        "id",
+        "version"
+      ],
+      "title": "VersionedMetadata",
+      "type": "object"
+    }
+  },
+  "description": "The result object structure.",
+  "properties": {
+    "system": {
+      "allOf": [
+        {
+          "$ref": "#/$defs/VersionedMetadata"
+        }
+      ],
+      "description": "System metadata"
+    },
+    "programming_language": {
+      "allOf": [
+        {
+          "$ref": "#/$defs/VersionedMetadata"
+        }
+      ],
+      "description": "Programming language."
+    },
+    "tool_origin": {
+      "allOf": [
+        {
+          "$ref": "#/$defs/VersionedMetadata"
+        }
+      ],
+      "description": "Origin tool in which the result was created."
+    },
+    "date": {
+      "anyOf": [
+        {
+          "format": "date-time",
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "default": null,
+      "description": "Time of saving.",
+      "title": "Date"
+    },
+    "author": {
+      "anyOf": [
+        {
+          "type": "string"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "default": null,
+      "description": "The name of the author responsible for the result.",
+      "title": "Author"
+    },
+    "petab_problem_snapshot": {
+      "allOf": [
+        {
+          "$ref": "#/$defs/PetabProblemSnapshot"
+        }
+      ],
+      "description": "Snapshot of the PEtab problem"
+    },
+    "optimization_result": {
+      "anyOf": [
+        {
+          "$ref": "#/$defs/OptimizeResult"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "default": null,
+      "description": "Optimization results"
+    },
+    "sample_result": {
+      "anyOf": [
+        {
+          "$ref": "#/$defs/SampleResult"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "default": null,
+      "description": "Sampling results"
+    },
+    "profile_result": {
+      "anyOf": [
+        {
+          "$ref": "#/$defs/ProfileResult"
+        },
+        {
+          "type": "null"
+        }
+      ],
+      "default": null,
+      "description": "Profiling results"
+    }
+  },
+  "required": [
+    "system",
+    "programming_language",
+    "tool_origin",
+    "petab_problem_snapshot"
+  ],
+  "title": "Result",
+  "type": "object"
+}
\ No newline at end of file
diff --git a/doc/result.yaml b/doc/result.yaml
new file mode 100644
index 00000000..7758ced2
--- /dev/null
+++ b/doc/result.yaml
@@ -0,0 +1,408 @@
+$defs:
+  OptimizationResult:
+    description: The result of a single optimization.
+    properties:
+      endpoint:
+        description: 'End point of the optimization. Dimension: (n_parameters)'
+        items:
+          type: number
+        title: Endpoint
+        type: array
+      fval:
+        description: Final value of the objective function.
+        title: Fval
+        type: number
+      fval0:
+        anyOf:
+        - type: number
+        - type: 'null'
+        default: null
+        description: Initial value of the objective function.
+        title: Fval0
+      grad:
+        anyOf:
+        - items:
+            type: number
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Gradient at the endpoint. Dimension: (n_parameters)'
+        title: Grad
+      hess:
+        anyOf:
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Hessian at the endpoint. Dimension: (n_parameters, n_parameters)'
+        title: Hess
+      history:
+        anyOf:
+        - type: string
+        - type: 'null'
+        default: null
+        description: Link to file of History of the optimization process
+        title: History
+      id:
+        description: Unique identifier for the optimization result. Multi-start local
+          optimizations should be separated for each startpoint.
+        title: Id
+        type: string
+      optimizer:
+        allOf:
+        - $ref: '#/$defs/VersionedMetadata'
+        description: Metadata on the optimizer used.
+      startpoint:
+        anyOf:
+        - items:
+            type: number
+          type: array
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        description: 'Starting point(s) for the optimization. May be multiple incase
+          of swarm based optimizers. Dimension: (n_parameters) | (n_starts, n_parameters)'
+        title: Startpoint
+    required:
+    - id
+    - optimizer
+    - startpoint
+    - endpoint
+    - fval
+    title: OptimizationResult
+    type: object
+  OptimizeResult:
+    description: Optimization result for multiple optimization starts.
+    properties:
+      optimization_result:
+        items:
+          $ref: '#/$defs/OptimizationResult'
+        title: Optimization Result
+        type: array
+    required:
+    - optimization_result
+    title: OptimizeResult
+    type: object
+  PetabProblemSnapshot:
+    description: 'The PEtab problem as it was used for result generation.
+
+
+      Extensive description of the PEtab data format can be found
+
+      at https://petab.readthedocs.io/en/latest/documentation_data_format.html.'
+    properties:
+      condition_df:
+        items:
+          type: object
+        title: Condition Df
+        type: array
+      measurement_df:
+        items:
+          type: object
+        title: Measurement Df
+        type: array
+      observable_df:
+        items:
+          type: object
+        title: Observable Df
+        type: array
+      parameter_df:
+        items:
+          type: object
+        title: Parameter Df
+        type: array
+      sbml_file:
+        description: SMBL model as a string representation
+        title: Sbml File
+        type: string
+    required:
+    - measurement_df
+    - observable_df
+    - condition_df
+    - parameter_df
+    - sbml_file
+    title: PetabProblemSnapshot
+    type: object
+  ProfileResult:
+    description: Profile results for multiple parameters and/or methods.
+    properties:
+      profile_results:
+        items:
+          $ref: '#/$defs/ProfilingResult'
+        title: Profile Results
+        type: array
+    required:
+    - profile_results
+    title: ProfileResult
+    type: object
+  ProfilingResult:
+    description: Profiling result for a single parameter profile.
+    properties:
+      id:
+        description: Unique identifier for the profiling result
+        title: Id
+        type: string
+      profile_confidence_interval:
+        anyOf:
+        - maxItems: 2
+          minItems: 2
+          prefixItems:
+          - type: number
+          - type: number
+          type: array
+        - type: 'null'
+        default: null
+        description: Confidence interval for the profile
+        title: Profile Confidence Interval
+      profile_confidence_level:
+        anyOf:
+        - type: number
+        - type: 'null'
+        default: null
+        description: Confidence level for the profile
+        title: Profile Confidence Level
+      profile_method:
+        $ref: '#/$defs/VersionedMetadata'
+      profile_objective_trace:
+        anyOf:
+        - items:
+            type: number
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Dimension: (trace_length)'
+        title: Profile Objective Trace
+      profile_parameter_id:
+        description: ID of the profiled parameter
+        title: Profile Parameter Id
+        type: string
+      profile_parameter_trace:
+        anyOf:
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Dimension: (trace_length, n_parameters)'
+        title: Profile Parameter Trace
+      profile_settings:
+        title: Profile Settings
+        type: object
+      profile_startpoint:
+        anyOf:
+        - items:
+            type: number
+          type: array
+        - type: 'null'
+        default: null
+        description: Parameter vector from which the profile was started
+        title: Profile Startpoint
+    required:
+    - id
+    - profile_method
+    - profile_settings
+    - profile_parameter_id
+    title: ProfilingResult
+    type: object
+  SampleResult:
+    description: Sample result for multiple sampling executions.
+    properties:
+      sampling_results:
+        items:
+          $ref: '#/$defs/SamplingResult'
+        title: Sampling Results
+        type: array
+    required:
+    - sampling_results
+    title: SampleResult
+    type: object
+  SamplingResult:
+    description: Sampling result for a single sampling execution with one or more
+      chains.
+    properties:
+      burn_in:
+        anyOf:
+        - type: integer
+        - type: 'null'
+        default: null
+        description: Number of burn-in samples
+        title: Burn In
+      id:
+        description: Unique identifier for the sampling result
+        title: Id
+        type: string
+      log_posterior_trace:
+        anyOf:
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        - items:
+            type: number
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Dimension: (n_chains, trace_length) or (trace_length)'
+        title: Log Posterior Trace
+      number_of_chains:
+        anyOf:
+        - type: integer
+        - type: 'null'
+        default: null
+        description: Number of chains used in the sampling
+        title: Number Of Chains
+      parameter_startpoints:
+        anyOf:
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        - items:
+            type: number
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Dimension: (n_chains, n_parameters) or (n_parameters)'
+        title: Parameter Startpoints
+      parameter_trace:
+        anyOf:
+        - items:
+            items:
+              items:
+                type: number
+              type: array
+            type: array
+          type: array
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        - type: 'null'
+        default: null
+        description: Dimension (n_chains, trace_length, n_parameters) or (trace_length,
+          n_parameters)
+        title: Parameter Trace
+      sampler:
+        $ref: '#/$defs/VersionedMetadata'
+      sampler_settings:
+        description: Settings for the sampler
+        title: Sampler Settings
+        type: object
+      samples:
+        anyOf:
+        - items:
+            items:
+              items:
+                type: number
+              type: array
+            type: array
+          type: array
+        - items:
+            items:
+              type: number
+            type: array
+          type: array
+        - type: 'null'
+        default: null
+        description: 'Dimension: (n_chains, n_samples, n_parameters) or (n_samples,
+          n_parameters)'
+        title: Samples
+      thinning:
+        anyOf:
+        - type: integer
+        - type: 'null'
+        default: null
+        description: Thinning factor
+        title: Thinning
+    required:
+    - id
+    - sampler
+    - sampler_settings
+    title: SamplingResult
+    type: object
+  VersionedMetadata:
+    additionalProperties: true
+    description: 'Any kind of Metadata (e.g. packages) including version.
+
+
+      Additonal info may be added.'
+    properties:
+      id:
+        title: Id
+        type: string
+      version:
+        title: Version
+        type: string
+    required:
+    - id
+    - version
+    title: VersionedMetadata
+    type: object
+description: The result object structure.
+properties:
+  author:
+    anyOf:
+    - type: string
+    - type: 'null'
+    default: null
+    description: The name of the author responsible for the result.
+    title: Author
+  date:
+    anyOf:
+    - format: date-time
+      type: string
+    - type: 'null'
+    default: null
+    description: Time of saving.
+    title: Date
+  optimization_result:
+    anyOf:
+    - $ref: '#/$defs/OptimizeResult'
+    - type: 'null'
+    default: null
+    description: Optimization results
+  petab_problem_snapshot:
+    allOf:
+    - $ref: '#/$defs/PetabProblemSnapshot'
+    description: Snapshot of the PEtab problem
+  profile_result:
+    anyOf:
+    - $ref: '#/$defs/ProfileResult'
+    - type: 'null'
+    default: null
+    description: Profiling results
+  programming_language:
+    allOf:
+    - $ref: '#/$defs/VersionedMetadata'
+    description: Programming language.
+  sample_result:
+    anyOf:
+    - $ref: '#/$defs/SampleResult'
+    - type: 'null'
+    default: null
+    description: Sampling results
+  system:
+    allOf:
+    - $ref: '#/$defs/VersionedMetadata'
+    description: System metadata
+  tool_origin:
+    allOf:
+    - $ref: '#/$defs/VersionedMetadata'
+    description: Origin tool in which the result was created.
+required:
+- system
+- programming_language
+- tool_origin
+- petab_problem_snapshot
+title: Result
+type: object
diff --git a/doc/result_pydantic.py b/doc/result_pydantic.py
new file mode 100644
index 00000000..e7bd7189
--- /dev/null
+++ b/doc/result_pydantic.py
@@ -0,0 +1,177 @@
+"""This contains the pedantic schema for the petab Result datastructure."""
+from datetime import datetime
+from typing import Optional, Union
+
+from pydantic import BaseModel, Field
+
+
+class VersionedMetadata(BaseModel, extra="allow"):
+    """Any kind of Metadata (e.g. packages) including version.
+
+    Additonal info may be added.
+    """
+
+    id: str
+    version: str
+
+
+class PetabProblemSnapshot(BaseModel):
+    """The PEtab problem as it was used for result generation.
+
+    Extensive description of the PEtab data format can be found
+    at https://petab.readthedocs.io/en/latest/documentation_data_format.html.
+    """
+
+    measurement_df: list[dict]
+    observable_df: list[dict]
+    condition_df: list[dict]
+    parameter_df: list[dict]
+    sbml_file: str = Field(description="SMBL model as a string representation")
+
+
+class OptimizationResult(BaseModel):
+    """The result of a single optimization."""
+
+    id: str = Field(
+        description="Unique identifier for the optimization result. "
+        "Multi-start local optimizations should be separated for "
+        "each startpoint."
+    )
+    optimizer: VersionedMetadata = Field(
+        description="Metadata on the optimizer used."
+    )
+    startpoint: Union[list[float], list[list[float]]] = Field(
+        description="Starting point(s) for the optimization. May be multiple in"
+        "case of swarm based optimizers. Dimension: (n_parameters) | (n_starts, n_parameters)"
+    )
+    endpoint: list[float] = Field(
+        description="End point of the "
+        "optimization. Dimension: (n_parameters)"
+    )
+    fval: float = Field(description="Final value of the objective function.")
+    fval0: Optional[float] = Field(
+        None, description="Initial value of the objective function."
+    )
+    grad: Optional[list[float]] = Field(
+        None, description="Gradient at the endpoint. Dimension: (n_parameters)"
+    )
+    hess: Optional[list[list[float]]] = Field(
+        None,
+        description="Hessian at the endpoint. Dimension: (n_parameters, n_parameters)",
+    )
+    history: Optional[str] = Field(
+        None,
+        description="Link to file of History of the optimization process",
+    )
+
+
+class SamplingResult(BaseModel):
+    """Sampling result for a single sampling execution with one or more chains."""
+
+    id: str = Field(description="Unique identifier for the sampling result")
+    sampler: VersionedMetadata
+    sampler_settings: dict = Field(description="Settings for the sampler")
+    parameter_startpoints: Optional[
+        Union[list[list[float]], list[float]]
+    ] = Field(
+        None,
+        description="Dimension: (n_chains, n_parameters) or (n_parameters)",
+    )
+    samples: Optional[
+        Union[list[list[list[float]]], list[list[float]]]
+    ] = Field(
+        None,
+        description="Dimension: (n_chains, n_samples, n_parameters) or (n_samples, n_parameters)",
+    )
+    parameter_trace: Optional[
+        Union[list[list[list[float]]], list[list[float]]]
+    ] = Field(
+        None,
+        description="Dimension (n_chains, trace_length, n_parameters) or (trace_length, n_parameters)",
+    )
+    log_posterior_trace: Optional[
+        Union[list[list[float]], list[float]]
+    ] = Field(
+        None,
+        description="Dimension: (n_chains, trace_length) or (trace_length)",
+    )
+    number_of_chains: Optional[int] = Field(
+        None, description="Number of chains used in the sampling"
+    )
+    burn_in: Optional[int] = Field(
+        None, description="Number of burn-in samples"
+    )
+    thinning: Optional[int] = Field(None, description="Thinning factor")
+
+
+class ProfilingResult(BaseModel):
+    """Profiling result for a single parameter profile."""
+
+    id: str = Field(description="Unique identifier for the profiling result")
+    profile_method: VersionedMetadata
+    profile_settings: dict
+    profile_parameter_id: str = Field(
+        description="ID of the profiled parameter"
+    )
+    profile_startpoint: Optional[list[float]] = Field(
+        None, description="Parameter vector from which the profile was started"
+    )
+    profile_parameter_trace: Optional[list[list[float]]] = Field(
+        None, description="Dimension: (trace_length, n_parameters)"
+    )
+    profile_objective_trace: Optional[list[float]] = Field(
+        None, description="Dimension: (trace_length)"
+    )
+    profile_confidence_interval: Optional[tuple[float, float]] = Field(
+        None, description="Confidence interval for the profile"
+    )
+    profile_confidence_level: Optional[float] = Field(
+        None, description="Confidence level for the profile"
+    )
+
+
+class OptimizeResult(BaseModel):
+    """Optimization result for multiple optimization starts."""
+
+    optimization_result: list[OptimizationResult]
+
+
+class SampleResult(BaseModel):
+    """Sample result for multiple sampling executions."""
+
+    sampling_results: list[SamplingResult]
+
+
+class ProfileResult(BaseModel):
+    """Profile results for multiple parameters and/or methods."""
+
+    profile_results: list[ProfilingResult]
+
+
+class Result(BaseModel):
+    """The result object structure."""
+
+    system: VersionedMetadata = Field(description="System metadata")
+    programming_language: VersionedMetadata = Field(
+        description="Programming language."
+    )
+    tool_origin: VersionedMetadata = Field(
+        description="Origin tool in which " "the result was " "created."
+    )
+    date: Optional[datetime] = Field(None, description="Time of saving.")
+    author: Optional[str] = Field(
+        None,
+        description="The name of the author responsible for the result.",
+    )
+    petab_problem_snapshot: PetabProblemSnapshot = Field(
+        description="Snapshot of the PEtab problem"
+    )
+    optimization_result: Optional[OptimizeResult] = Field(
+        None, description="Optimization results"
+    )
+    sample_result: Optional[SampleResult] = Field(
+        None, description="Sampling results"
+    )
+    profile_result: Optional[ProfileResult] = Field(
+        None, description="Profiling results"
+    )