> ## Documentation Index > Fetch the complete documentation index at: https://docs.arcmira.com/llms.txt > Use this file to discover all available pages before exploring further. # Submit a transcript correction (unified ingestion) > Unified corrections ingestion for all kinds: line_edit, speaker_reassign, speaker_identify, add_person, entity_tag. Corrections are free (0 rows) and land as pending-review rows attributed to your API key; speaker_identify/add_person also create a community-flagged appearance immediately. Anchored kinds (line_edit, speaker_reassign, entity_tag) must echo the transcript `meta.revision` and an `anchor` ({ segmentIndex, contentHash: djb2 of the covered segment text }). Error semantics for outbox-style clients: 409 = revision/anchor mismatch — the transcript changed underneath the correction (body { reason, currentRevision }); drop or re-anchor the event and continue — the sequence number is consumed. 412 = seq mismatch (body { expectedSeq }); refetch the transcript, rebase local counters, and resend. Supports the Idempotency-Key header (client event UUID): replays return the stored final response verbatim with Idempotency-Replayed: true. ## OpenAPI ````yaml /openapi/arcmira-v1.json post /v1/videos/{video_id}/corrections openapi: 3.1.0 info: title: Arcmira API version: 1.0.0 contact: name: Arcmira url: https://arcmira.com servers: - url: https://api.arcmira.com security: [] paths: /v1/videos/{video_id}/corrections: post: tags: - Corrections summary: Submit a transcript correction (unified ingestion) description: >- Unified corrections ingestion for all kinds: line_edit, speaker_reassign, speaker_identify, add_person, entity_tag. Corrections are free (0 rows) and land as pending-review rows attributed to your API key; speaker_identify/add_person also create a community-flagged appearance immediately. Anchored kinds (line_edit, speaker_reassign, entity_tag) must echo the transcript `meta.revision` and an `anchor` ({ segmentIndex, contentHash: djb2 of the covered segment text }). Error semantics for outbox-style clients: 409 = revision/anchor mismatch — the transcript changed underneath the correction (body { reason, currentRevision }); drop or re-anchor the event and continue — the sequence number is consumed. 412 = seq mismatch (body { expectedSeq }); refetch the transcript, rebase local counters, and resend. Supports the Idempotency-Key header (client event UUID): replays return the stored final response verbatim with Idempotency-Replayed: true. requestBody: content: application/json: schema: type: object properties: kind: type: string enum: - line_edit - speaker_reassign - speaker_identify - add_person - entity_tag seq: type: integer exclusiveMinimum: 0 description: >- Per-video monotonic sequence number (strict FIFO per user+video). Optional for one-off submissions; required for outbox-style clients that depend on ordering. Any mismatch returns 412 with the expected value. revision: type: string description: >- The meta.revision from the transcript GET this correction was made against. Required for line_edit, speaker_reassign, and entity_tag. anchor: type: object properties: segmentIndex: type: integer minimum: 0 contentHash: type: string minLength: 1 description: >- djb2 hash of the covered segment text (joined with \n for ranges), computed against your projected view of the transcript. required: - segmentIndex - contentHash description: Required for line_edit, speaker_reassign, and entity_tag. payload: type: object additionalProperties: {} description: >- Kind-specific payload. line_edit: { segmentIndex, originalText, correctedText }. speaker_reassign: { selection: { startIndex, startChar, endIndex, endChar }, target: { kind: existing|new|role, speakerId, label?, role? } }. speaker_identify: { speakerId, entityId }. add_person: { speakerId, name }. entity_tag: { segmentIndex, charStart, charEnd, entityId } or { segmentIndex, charStart, charEnd, proposedName, proposedType }. required: - kind - payload responses: '200': description: Success content: application/json: schema: {} '201': description: >- Correction accepted ({ ok, kind, result }; result.id withdraws it later) content: application/json: schema: {} '400': description: Invalid request content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '401': description: Authentication error content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '402': description: Quota exceeded content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '403': description: Permission error content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '404': description: Not found content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '409': description: Conflict content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '412': description: Sequence mismatch ({ expectedSeq }) — refetch, rebase, resend content: application/json: schema: {} '429': description: Rate limit exceeded content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error '500': description: Server error content: application/json: schema: type: object properties: error: type: object properties: type: type: string code: type: string message: type: string param: type: string doc_url: type: string request_id: type: string required: - type - code - message - doc_url - request_id required: - error security: - bearerAuth: [] - apiKeyAuth: [] components: securitySchemes: bearerAuth: type: http scheme: bearer bearerFormat: arc_sk_* apiKeyAuth: type: apiKey in: header name: x-api-key ````