# Verify document authenticity with Claude: n8n workflow template

> Started by another system calling it, and works across Gmail. It hands the judgement calls to Claude.

Source: https://millionrounds.com/workflow/verify-document-authenticity-with-claude (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Documents and files](https://millionrounds.com/workflows?category=Documents+and+files#library)

# Verify document authenticity with Claude

Started by another system calling it, and works across Gmail. It hands the judgement calls to Claude. 13 steps, 1 branch: a working afternoon to understand properly.

Medium Calls a model: Claude

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fverify-document-authenticity-with-claude)

**13 steps** Medium: a working afternoon

**1** Branch: places the flow splits

**0** Loops or waits

**1** Service it connects to

## The flow

Starts it 1 Model 3 Logic 4 Service 5

The steps in the order they run, from what starts it.

- 1 **Document Submission Webhook** Webhook *Starts it*
- 2 **Anthropic Chat Model** Lm Chat Anthropic *Model*
- 3 **Validation Result Parser** Output Parser Structured *Model*
- 4 **Workflow Configuration** Set *Logic*
- 5 **Document Authenticity Validator** Agent *Model*
- 6 **Extract Document Content** Extract From File *Service*
- 7 **Check Document Authenticity** If *Logic*
- 8 **Prepare Blockchain Record** Set *Logic*
- 9 **Flag Forged Document** Set *Logic*
- 10 **Publish to Blockchain** Http Request *Service*
- 11 **Send Alert Email** Gmail *Service*
- 12 **Send Proof to Carriers** Http Request *Service*
- 13 **Send Proof to Regulatory Bodies** Http Request *Service*

## How it's built

- **Starts on:** Another system calling it
- **Steps:** 13, with 1 branch
- **Size:** Medium: a working afternoon
- **Connects to:** Gmail
- **Model:** Claude

## Questions

What does it need to run?

An n8n account, plus your own Gmail account, and a key for Claude. You connect your own accounts after importing it; none are included.

What starts it?

It starts on another system calling it.

Does it use AI?

Yes. It calls Claude. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Plan an afternoon. 13 steps is enough that you should read each one before running it.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 13 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fverify-document-authenticity-with-claude)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

## Connects to

Each opens the other workflows that use it.

[Gmail](https://millionrounds.com/workflows?service=Gmail#library)

## Workflows like it

Also documents and files, with the same services where possible, closest in size first.

- [**Generate RFP response documents with OpenAI Assistants** 13 steps · calls a model · Gmail, Google Docs](https://millionrounds.com/workflow/generate-rfp-response-documents-with-openai-assistants)
- [**Scan incoming Gmail attachments for threats with VirusTotal** 13 steps · calls a model · Gmail, Google Drive](https://millionrounds.com/workflow/scan-incoming-gmail-attachments-for-threats-with-virustotal)
- [**Extract passport data with OpenAI OCR** 13 steps · Gmail](https://millionrounds.com/workflow/extract-passport-data-with-openai-ocr)
- [**Generate verified gym trial passes with PDF** 13 steps · Gmail, Google Sheets](https://millionrounds.com/workflow/generate-verified-gym-trial-passes-with-pdf)
- [**Organize email attachments into Google Drive folders by company** 13 steps · Gmail, Google Drive](https://millionrounds.com/workflow/organize-email-attachments-into-google-drive-folders-by-comp)
- [**Compare supplier contract terms and draft pushback with Gemini** 14 steps · calls a model · Gmail](https://millionrounds.com/workflow/compare-supplier-contract-terms-and-draft-pushback-with-gemi)