---
title: "Anchored Extract Verifier"
method: POST
path: "/v1/tools/verify_anchored_extract"
tags: ["TODO_TAGS_REVIEW", "TODO_AP2_EXPORT_REVIEW"]
---

# Anchored Extract Verifier

`POST /v1/tools/verify_anchored_extract`

## Request

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

Verifies an extract's Merkle inclusion against a root only when that root is anchored by a recognized source: a recognized OCG artifact/chain envelope, or an external anchor (RFC 3161 timestamp, OpenTimestamps, Sigstore transparency log, or an on-chain commitment composed via verify_eth_state_proof, VR-1). Explicitly refuses (anchored:false) a self-produced root with no recognized anchor class; the universal self-produced hash-chain explorer stays dead. Not-X-use-Y: use art-280 (verify_reserve_proof) for Merkle-SUM Proof-of-Reserves inclusion specifically; this kernel verifies plain (non-sum) Merkle inclusion for any anchored extract.

**Tool URL:** https://ainumbers.co/chaingraph/art-286-anchored-extract-verifier.html

## Request body

- object
  - `anchor_evidence` unknown, required
  - `claimed_root` string: type not evidenced by kernel source
  - `extract` unknown, required
  - `source_class` unknown

## Response `200`

Successful tool execution result

- object
  - `anchor_note` string
  - `anchored` boolean
  - `anchored_extract_determination` string
  - `claimed_root` string
  - `computed_root` string
  - `escalation` string
  - `not_proven` object[]
    - `detail` string
    - `item` string
  - `regulatory_framework` string
  - `root_match` boolean
  - `source_class` string
  - `structural_error` 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)