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n8n-nodes-proofofauthenticity

v1.0.8

Published

ProofOfAuthenticity by CHECKHC - Blockchain timestamping with AI detection and C2PA content authenticity.

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Links

Git

Maintainers

checkhccheckhc

Keywords

n8nn8n-community-node-packageproofofauthenticitycheckhcblockchainsolanacertificationc2pacontent-authenticityai-detectiontimestampproof-of-authenticity

Readme

ProofOfAuthenticity

npm version License: MIT

Developed by CHECKHC - Blockchain content certification experts

Overview

ProofOfAuthenticity is an n8n community node that provides blockchain timestamping with optional AI authenticity detection and C2PA content authenticity metadata.

Features

  • Blockchain Timestamping - SHA-256 hash certified on Solana blockchain
  • AI Authenticity Detection - Detect AI-generated vs human-created content
  • C2PA Integration - Content Authenticity Initiative standard metadata

Operations

Create Certificate

Certify content with blockchain timestamp.

| Parameter | Description | |-----------|-------------| | Input Type | URL or Base64 | | File URL/Data | The file to certify | | Title | Certificate title (required) | | Author | Author name (optional) | | Description | Description (optional) | | Certification Mode | Simple or AI + C2PA |

Download C2PA File

Download the C2PA signed image file as binary output. Use this after creating a certificate with AI + C2PA mode.

| Parameter | Description | |-----------|-------------| | C2PA Download URL | The c2pa_download_url returned by Create Certificate (AI mode) | | Binary Property Name | Output binary property name (default: c2pa_file) |

Output: Binary file with C2PA metadata embedded.

Download PDF Certificate

Download the PDF certificate as binary output.

| Parameter | Description | |-----------|-------------| | IV Storage ID | The iv_storageid returned by Create Certificate | | Binary Property Name | Output binary property name (default: pdf_certificate) |

Output: PDF document with certification details.

List Certificates

List blockchain certificates with optional filters (hash, filename, signature).

Installation

Via n8n Community Nodes

  1. Go to Settings > Community Nodes
  2. Select Install
  3. Enter n8n-nodes-proofofauthenticity
  4. Click Install

Manual Installation

cd ~/.n8n/nodes
yarn add n8n-nodes-proofofauthenticity

Configuration

  1. Create a credential of type ProofOfAuthenticity API
  2. Enter your DigiCryptoStore instance URL
  3. Enter your API Key (Settings > API Keys)

Support

License

MIT

Powered by CHECKHC