---
title: "Conversion Receipt Builder"
method: POST
path: "/v1/tools/build_conversion_receipt"
tags: ["TODO_TAGS_REVIEW", "TODO_AP2_EXPORT_REVIEW"]
---

# Conversion Receipt Builder

`POST /v1/tools/build_conversion_receipt`

## Request

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

Binds one file-conversion event into a canonical receipt tying the input digest to the converter identity, the parameters, and the output digest. binding_sha256 is SHA-256 over the JCS-canonical receipt with binding_sha256 removed. Any external converter, including the heavy WASM Conversion Lab tools, can feed it digests, and it is the documented hand-off point for BrowserChain anchoring. This binds a transformation edge between two digests, which is a different job from anchor_document_integrity (art-121, existence and timestamp of one document). Returns the receipt plus checks for hex validity, converter identity completeness, and self-conversion. Zero network, zero PII.

**Tool URL:** https://ainumbers.co/chaingraph/art-191-conversion-receipt-builder.html

## Request body

- object
  - `converter` unknown, required
  - `input_filename` unknown
  - `input_sha256` unknown
  - `output_filename` unknown
  - `output_sha256` unknown
  - `parameters` unknown[], required
    - unknown
  - `source_format` unknown
  - `target_format` unknown

## Response `200`

Successful tool execution result

- object
  - `all_checks_pass` boolean
  - `checks` object[]
    - `check` string
    - `detail` string
    - `pass` boolean
  - `receipt` object
    - `binding_sha256` string
    - `converter` object
      - `name` string
      - `version` string
    - `input` object
      - `format` string
      - `sha256` string
    - `output` object
      - `format` string
      - `sha256` string
    - `parameters` object
      - `heading_ids` boolean
      - `table_support` boolean
    - `receipt_version` 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)