Verify property ownership with blockchain, GPT-4 fraud detection, and compliance tracking
Ready for 3.0Ready for 3.0. This template uses no nodes that n8n 3.0 removes. No removed nodes, versions or helpers found. Static check, last run 2026-10-19.
What this workflow does
This AI workflow has 20 nodes and runs when someone submits an n8n form (“Blockchain Property Registration”) (plus 1 other trigger). Along the way it connects Google Sheets and OpenAI Chat Model.
How it runs
Trigger: When someone submits an n8n form (“Blockchain Property Registration”) (plus 1 other trigger).
- Workflow Configuration (Edit Fields (Set)): sets 3 fields: blockchainApiUrl, blockchainApiKey, dataTableName
- Query Property Records (Data table): get
- Check Transaction Type (If): checks a condition and branches into true / false
- AI Fraud Detection Agent (AI Agent): runs an AI agent, with model: OpenAI Chat Model; output parser: Fraud Risk Output Parser
- Verify on Blockchain (HTTP Request): calls an HTTP API
- Generate Property Hash (Code): runs custom JavaScript code
- Generate Lease Hash (Code): runs custom JavaScript code
- Check Fraud Risk Level (If): checks a condition and branches into true / false
- Return Verification Result (Respond to Webhook): sends the response back to the webhook caller
- Register on Blockchain (HTTP Request): calls an HTTP API (POST)
…plus 4 more steps. See the full node list below.
Services it uses
Before you upgrade to n8n 3.0
Nothing in this workflow is removed in n8n 3.0, so it should import and run after the upgrade.
Nodes used (12)
- n8n Form Trigger
n8n-nodes-base.formTrigger - Edit Fields (Set)
n8n-nodes-base.set - If
n8n-nodes-base.if - Code
n8n-nodes-base.code - HTTP Request
n8n-nodes-base.httpRequest - Data table
n8n-nodes-base.dataTable - Google Sheets
n8n-nodes-base.googleSheets - Webhook
n8n-nodes-base.webhook - Respond to Webhook
n8n-nodes-base.respondToWebhook - AI Agent
@n8n/n8n-nodes-langchain.agent - OpenAI Chat Model
@n8n/n8n-nodes-langchain.lmChatOpenAi - Structured Output Parser
@n8n/n8n-nodes-langchain.outputParserStructured
From the author
How It Works This workflow automates property registration verification, fraud detection, and blockchain-based compliance tracking by systematically assessing fraud risk, validating transactions, ensuring data immutability through cryptographic hashing, and…