> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lerian.studio/llms.txt
> Use this file to discover all available pages before exploring further.

# Verify Audit Hash Chain

> Verify the integrity of the audit hash chain up to the specified event. Returns whether the chain is intact and, if not, identifies the first broken entry.



## OpenAPI

````yaml /en/openapi/v3-current/flowker.yaml get /v1/audit-events/{id}/verify
openapi: 3.1.0
info:
  description: >-
    Complete API reference for Flowker workflow orchestration services including
    catalog management, workflow definitions, executor configurations, provider
    configurations, and workflow executions.
  title: Flowker API
  version: 1.1.0
servers:
  - url: https://flowker.sandbox.lerian.net
security:
  - ApiKeyAuth: []
tags:
  - name: Health API
    description: Health and version endpoints for monitoring the Flowker service.
  - name: Catalog API
    description: >-
      Browse built-in providers, executors, and triggers available in the
      Flowker catalog.
  - name: Workflows API
    description: >-
      Create, update, activate, deactivate, clone, and delete workflow
      definitions.
  - name: Executions API
    description: Start workflow executions and track their status and results.
  - name: Executor Configurations API
    description: >-
      Configure, test, and manage external executor connections used by workflow
      nodes.
  - name: Provider Configurations API
    description: Configure, test, enable, and disable provider integrations.
  - name: Dashboard API
    description: >-
      Retrieve aggregated summaries of workflows and executions for operational
      dashboards.
  - name: Audit API
    description: Query and verify audit events for compliance and operational visibility.
  - name: Webhooks API
    description: >-
      Receive webhook callbacks from external systems to trigger workflow
      executions.
paths:
  /v1/audit-events/{id}/verify:
    get:
      tags:
        - Audit API
      summary: Verify Audit Hash Chain
      description: >-
        Verify the integrity of the audit hash chain up to the specified event.
        Returns whether the chain is intact and, if not, identifies the first
        broken entry.
      operationId: verifyAuditHashChain
      parameters:
        - description: Unique identifier of the audit event to verify up to.
          in: path
          name: id
          required: true
          schema:
            format: uuid
            type: string
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HashChainVerificationOutput'
          description: >-
            Indicates that the request was successful and the response contains
            the verification result.
        '400':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: >-
            Indicates that the request was malformed or contained invalid
            parameters.
        '404':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: Indicates that the requested resource could not be found.
        '500':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ErrorResponse'
          description: >-
            Indicates an unexpected internal error. If this persists, please
            contact support.
components:
  schemas:
    HashChainVerificationOutput:
      description: Result of hash chain integrity verification.
      properties:
        isValid:
          description: Whether the hash chain is intact up to the specified event.
          example: true
          type: boolean
        firstInvalidId:
          description: >-
            Internal ID of the first entry with a broken hash. Present only when
            `isValid` is `false`.
          example: 42
          format: int64
          type: integer
        totalChecked:
          description: Total number of entries verified in the chain.
          example: 150
          format: int64
          type: integer
        message:
          description: Human-readable verification result summary.
          example: Hash chain integrity verified successfully
          type: string
      type: object
    ErrorResponse:
      properties:
        code:
          description: Machine-readable error code with the FLK prefix.
          example: FLK-0001
          type: string
        message:
          description: Human-readable explanation of the error.
          example: Invalid input provided
          type: string
        title:
          description: Short error category title.
          example: Bad Request
          type: string
      required:
        - code
        - message
        - title
      type: object
  securitySchemes:
    ApiKeyAuth:
      type: apiKey
      in: header
      name: X-API-Key
      description: >-
        API key for authenticating requests to the Flowker API. Provisioned via
        the API_KEY environment variable during deployment.

````