---
title: "Document Integrity & eIDAS Electronic Timestamp Anchor"
method: POST
path: "/v1/tools/anchor_document_integrity"
tags: ["TODO_TAGS_REVIEW"]
---

# Document Integrity & eIDAS Electronic Timestamp Anchor

`POST /v1/tools/anchor_document_integrity`

## Request

- Base URL: `https://ainumbers.co`
- URL: `https://ainumbers.co/v1/tools/anchor_document_integrity`
- Auth: none declared

Bind a document SHA-256 and claimed timestamp into an OCG execution_hash that serves as an eIDAS Art.41 / RFC 3161-aligned electronic timestamp: self-verifiable, no external TSA call. Optional C2PA manifest field. Feeds timestamp attestation verifier (art-122).

**Tool URL:** https://ainumbers.co/chaingraph/art-121-document-integrity-anchor.html
**AP2/Policy Mandate export:** yes

## Request body

- object
  - `claimed_timestamp` unknown
  - `document_hash` unknown
  - `document_type` unknown
  - `hash_algorithm` string: type not evidenced by kernel source

## Response `200`

Successful tool execution result

- object
  - `anchored` boolean
  - `document_hash` string
  - `document_type` string
  - `timestamp_claim` object
    - `algorithm` string
    - `standard` string
    - `timestamp` string

---

[API](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite.md) · [All operations](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/llms.txt) · [OpenAPI document](https://skmtc.dev/ainumbers/apis/ainumbers-co-fintech-intelligence-suite/revisions/b462e4f5bb28?raw)