> ## Documentation Index
> Fetch the complete documentation index at: https://developers.t2000.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Anchor receipt

> Anchor a confidential receipt on Sui — emits a `ReceiptAnchored` event committing the response wire_hash + attested workload_id. Idempotent: re-anchoring returns the existing tx. Public. See /confidential-ai/verify.

Concepts: [Verify a response](/confidential-ai/verify). **Every confidential response is auto-anchored on Sui** — you rarely call this. **GET** looks up the stored anchor digest; **POST** is an idempotent backfill (returns the existing tx if already anchored). Then run [`t2 verify {id}`](/confidential-ai/verify) or browse [verify.t2000.ai](https://verify.t2000.ai).


## OpenAPI

````yaml POST /aci/anchor/{id}
openapi: 3.1.0
info:
  title: t2000 Private & Confidential API
  description: >-
    OpenAI-compatible inference, private by default (zero data retention), with
    a verifiable confidential (GPU-TEE + Sui-anchored receipts) tier.
  version: 1.0.0
servers:
  - url: https://api.t2000.ai/v1
security:
  - bearerAuth: []
paths:
  /aci/anchor/{id}:
    post:
      summary: Anchor receipt
      description: >-
        Anchor a confidential receipt on Sui — emits a `ReceiptAnchored` event
        committing the response wire_hash + attested workload_id. Idempotent:
        re-anchoring returns the existing tx. Public. See
        /confidential-ai/verify.
      operationId: anchorReceipt
      parameters:
        - name: id
          in: path
          required: true
          schema:
            type: string
            examples:
              - rcpt-…
          description: The receipt id to anchor.
      responses:
        '200':
          description: The on-chain anchor.
          content:
            application/json:
              schema:
                type: object
                properties:
                  anchored:
                    type: boolean
                  receiptId:
                    type: string
                  txDigest:
                    type: string
                  explorer:
                    type: string
      security: []
components:
  securitySchemes:
    bearerAuth:
      type: http
      scheme: bearer
      description: >-
        Your Private API key (`sk-…`) from agents.t2000.ai/manage. Agents can
        also call keyless over x402.

````