n8n-nodes-digicryptostore

🔐 Blockchain Certification for Digital Content

📝 Two Powerful Nodes: DigiCryptoStore + SolMemo

Powered by CHECKHC - The Certified Human Data Layer for the AI Era

🌐 CHECKHC.net | 📦 App Platform | 💬 Discord Support

⚠️ Beta Status: This package is in active development. Features are functional but we're continuously improving based on user feedback. Join our Discord channel for support and updates.

🎯 What's Inside This Package?

This n8n community package provides two powerful nodes for blockchain-based content certification:

📄 1. DigiCryptoStore - NFT Document Certification

Permanent document certification with NFT minting on Solana blockchain. Perfect for legal documents, contracts, and archival storage.

📝 2. SolMemo - Hash Timestamping + AI Verification ✨ NEW!

Privacy-first blockchain timestamping with optional AI detection and C2PA authenticity. Perfect for photos, images, and confidential files.

Combined Key Features:

DigiCryptoStore Features:

• 📄 Document Certification - PDF, DOCX, XLSX, and more
• 🎨 NFT Minting - Each document gets a unique NFT on Solana
• ☁️ Permanent Storage - Arweave decentralized storage
• 💰 Automated Payments - CHECKHC tokens paid automatically

SolMemo Features:

• 🔐 Privacy-First - Hash-only mode (file never leaves your device)
• 🤖 AI Detection - Optional AI analysis (human vs AI content)
• 🏷️ C2PA Standard - Industry-standard authenticity metadata
• ⚡ Ultra-Fast - 30 seconds for simple hash, 2 minutes with AI
• 💸 Low Cost - From 1 credit (€0.08) for hash-only

Common Features:

• 🔒 Blockchain Proof - Immutable timestamping on Solana
• 🤖 Full Automation - Zero manual intervention
• 🔐 Secure - Private keys encrypted in n8n credentials
• 🇪🇺 GDPR Compliant - Privacy by design

Perfect For:

Use DigiCryptoStore for:

• 🏛️ Digital vaults and permanent document archiving
• 📊 High-volume B2B document certification (100s-1000s)
• ✅ Enterprise compliance and audit trails
• 🗄️ Legal document preservation with NFT proof

Use SolMemo for:

• 📸 Photography - Prove your images are human-created
• 🎨 Digital Art - Protect against AI copies
• 📝 Confidential Documents - Hash-only (GDPR compliant)
• 🏢 IP Protection - Timestamp creative work instantly
• 🗞️ Journalism - Verify photo authenticity with AI + C2PA

🚀 Quick Start

1. Install

cd ~/.n8n
npm install n8n-nodes-digicryptostore
n8n start

2. Configure Credentials

Credential A: DigiCryptoStore API

1. Get API key from: https://app2.photocertif.com
2. In n8n: Credentials → PhotoCertif API
3. Enter URL: https://app2.photocertif.com and your API key

Credential B: Solana Wallet

1. In n8n: Credentials → Solana API
2. Enter your wallet's private key (base58 format)
3. Recommended: Use a dedicated wallet with limited funds

3. Import Workflow

1. Download: workflow-docs-certification-v2.4.0.json
2. In n8n: Import from File
3. Select credentials
4. Execute!

📊 How It Works

Simple 4-Step Process:

1. 📤 Upload Your Document
   → PDF, DOCX, XLSX, or any file type
   → Add title, description, and owner information

2. 💳 Automated Payment
   → Pay a few CHECKHC tokens (~10 USD)
   → No manual wallet interaction needed

3. ✅ Certification & Verification
   → Advanced verification process
   → NFT certificate created on blockchain
   → Unique proof of authenticity

4. 🎉 Get Your Results
   → NFT certificate in your wallet
   → Permanent certification proof
   → Downloadable certified document

⏱️ Total Time: ~30-60 seconds
🤖 Automation: 100% automated (zero manual steps)
📦 Storage Options:

• Permanent - For assets you want to monetize or keep forever
• Erasable - GDPR-compliant option (personal data can be deleted on request)

💰 Pricing

Per Certification:

CHECKHC Payment (paid to DigiCryptoStore):

• ~10 USD per document (paid in CHECKHC tokens)
• Current rate: ~245 CHECKHC per certification

Blockchain Fees (paid in SOL from your wallet):

• Secure storage: ~0.02-0.05 SOL
• NFT minting: ~0.01 SOL
• Total: ~0.03-0.06 SOL per document

Wallet Requirements:

• SOL: 0.1-0.5 SOL for multiple certifications
• CHECKHC: System auto-swaps SOL→CHECKHC when needed

📚 Operations

The node provides these operations:

| Operation | Description | |-----------|-------------| | Get Pricing | Retrieve current CHECKHC pricing | | Upload | Upload document (base64 or URL) | | Submit Certification | Prepare certification with metadata | | Get Status | Check certification progress | | Wait for Certification | Poll until completion | | Download | Retrieve certified document |

🔧 Advanced Features

URL Upload Support

Upload from Google Drive, Dropbox, or any public URL:

{
  "fileUrl": "https://drive.google.com/uc?id=YOUR_ID&export=download",
  "title": "My Document",
  "file_extension": "pdf"
}

Batch Processing

Process multiple documents in a loop:

[
  {"storage_id": "iv_xxx1", "document_name": "Contract 1"},
  {"storage_id": "iv_xxx2", "document_name": "Contract 2"}
]

Custom Collections

Add documents to a Solana NFT collection:

{
  "collection_mint_address": "YOUR_COLLECTION_MINT"
}

Affiliate System

Track commissions with affiliate codes:

{
  "affiliate_code": "PARTNER_XYZ"
}

📦 What You Get

Each certification includes:

1. 🎫 NFT Certificate

   • Unique blockchain proof on Solana
   • Verifiable authenticity
   • Transferable ownership

2. 📄 Certified Document

   • Your original file with certification
   • Watermarked preview for sharing
   • Downloadable anytime

3. 🔒 Verification Data

   • All certification metadata
   • Cryptographic proof of authenticity
   • Compliant with industry standards

🇪🇺 GDPR Compliance:

• Choose permanent storage (ideal for NFT monetization)
• Or erasable storage (personal data can be deleted on request)

🔐 Security Best Practices

Wallet Security:

✅ DO:

• Use a dedicated wallet for n8n
• Store only necessary funds (~0.5 SOL + 10,000 CHECKHC)
• Private keys are encrypted in n8n credentials

❌ DON'T:

• Use your main wallet
• Store large amounts in n8n wallet
• Share your private key

API Key Security:

✅ DO:

• Use API keys with minimum required scopes
• Rotate keys regularly
• Monitor usage logs

🐛 Troubleshooting

"Insufficient SOL balance"

• Transfer more SOL to your n8n wallet
• Recommended: 0.1-0.5 SOL for multiple certifications

"Insufficient CHECKHC balance"

• The workflow automatically swaps SOL→CHECKHC
• Make sure you have enough SOL for the swap

"API Key invalid"

• Verify scopes: docs:read, docs:upload, docs:write
• Regenerate if needed

"Storage record not found"

• Upload the document first via /api/storage/docs/upload/iv_route
• Check the storage_id is correct

📖 Documentation

• QUICK_START_DIGICRYPTOSTORE.md - 2-minute setup guide
• WORKFLOW_V2.4.0_README.md - Detailed workflow documentation
• CHANGELOG.md - Version history

🆚 Comparison: DigiCryptoStore vs Manual Upload

| Feature | Manual Upload | DigiCryptoStore n8n | |---------|--------------|---------------------| | Setup Time | Every time | Once | | Time per Doc | 5-10 min | ~30-60 sec | | Human Interaction | Required | Zero | | Batch Processing | Manual | Automated | | Payment | Manual wallet | Automatic | | NFT Creation | Manual | Automatic | | Monitoring | Manual refresh | Automatic polling | | Scale | Limited | Unlimited |

📝 SolMemo - Privacy-First Blockchain Timestamping

🎯 What is SolMemo?

SolMemo is a revolutionary blockchain timestamping node that combines privacy, AI detection, and industry standards (C2PA).

Three Certification Modes:

1. 🔐 Simple Hash (1 credit - €0.08)

   • SHA-256 hash timestamped on Solana
   • File NEVER leaves your device (GDPR perfect)
   • Perfect for confidential documents
   • 30 seconds, fully automated

2. 🤖 AI Strict + C2PA (30 credits - €0.90)

   • Hash + AI analysis (2-level detection: Human/AI)
   • C2PA authenticity metadata (Adobe standard)
   • Perfect for documentary photos, legal evidence
   • 2-3 minutes processing

3. 🎨 AI Art + C2PA (30 credits - €0.90)

   • Hash + AI analysis (5-level detection: 100% human → 100% AI)
   • Accepts artistic post-production
   • Perfect for digital art, creative photography
   • 2-3 minutes processing

⚡ Quick Comparison:

| Feature | Simple Hash | AI + C2PA | |---------|-------------|-----------| | Privacy | ✅ File stays local | ⚠️ File uploaded | | Cost | 💸 1 credit (€0.08) | 💰 30 credits (€0.90) | | Speed | ⚡ 30 seconds | 🔄 2-3 minutes | | Use Case | Documents, IP, Contracts | Photos, Art, Journalism | | Proof | Hash + Blockchain | Hash + AI + C2PA + Blockchain |

🔧 SolMemo Operations:

| Operation | Description | |-----------|-------------| | Create Memo | Create blockchain memo with optional AI + C2PA | | List Memos | Retrieve all your blockchain timestamped files |

📊 SolMemo Workflow Example:

{
  "operation": "createMemo",
  "certificationMode": "simple",  // or "ai_strict" or "ai_art"
  "fileData": "base64...",        // or use "fileUrl"
  "title": "My Photo",
  "author": "John Doe",
  "description": "Original shot 2025",
  "iv_storageid": "optional-storage-id"
}

Output:

{
  "success": true,
  "memo": {
    "iv_storageid": "iv_xxx...",
    "blockchain_signature": "5xABc...",
    "hash_sha256": "abc123...",
    "ai_analysis": {  // Only if AI mode
      "is_ai_generated": false,
      "confidence": 0.95,
      "model": "strict"
    },
    "c2pa_created": true,  // Only if AI mode
    "c2pa_download_url": "https://...",
    "verification_url": "https://app2.photocertif.com/verify/xxx"
  }
}

🌟 Why Choose SolMemo?

✅ Privacy by Design - Hash mode keeps files local
✅ AI-Proof - Detect AI-generated content automatically
✅ Industry Standard - C2PA compatible (Adobe, Microsoft, BBC)
✅ Blockchain Immutable - Solana timestamping (400ms finality)
✅ Low Cost - From €0.08 per timestamping
✅ Free Tier - 30 free credits/month for all users

📸 Perfect for Photographers & Artists:

🎨 Protect your work in the AI era

With 34 million AI images created daily, proving your work is human-made has never been more critical. SolMemo provides:

• Blockchain proof of creation date
• AI analysis confirming human authorship
• C2PA metadata for industry compliance
• All automated from n8n

🔗 Links

• 🌐 Official Website: https://www.checkhc.net
• 📦 App Platform: https://app2.photocertif.com
• 📚 GitHub: https://github.com/checkhc/n8n-nodes-digicryptostore
• 📦 npm Package: https://www.npmjs.com/package/n8n-nodes-digicryptostore
• Discord Support (Primary): https://discord.com/channels/1324516144979382335/1429512698504151200
  • Real-time community support
  • Direct access to developers
  • Share workflows and tips
• Email Support: [email protected]

📄 License

MIT © CHECKHC

🏢 About CHECKHC - The Certified Human Data Layer

CHECKHC is building the Certified Human Data Layer for the AI Era.

🎯 Our Mission:

In a world flooding with AI-generated content (34M images/day), we provide forensic-grade certification to prove human authorship and prevent AI training collapse.

🛠️ Our Solutions:

For Individuals & Creators:

• 📝 SolMemo - Privacy-first hash timestamping (from €0.08)
• 🎨 Image Certification - AI detection + C2PA authenticity
• 📸 Free Tier - 30 credits/month for all users
• 🪙 $CHECKHC Token - Earn by certifying, spend on services

For Enterprises & B2B:

• 📄 DigiCryptoStore - NFT document certification with permanent storage
• 🤖 n8n Automation - This package! Full workflow automation
• 🏢 API Access - Bulk certification, custom integration
• 💼 White-Label - Private blockchain certification platform

For AI Companies:

• 🧬 Certified Training Data - Human-verified datasets
• ✅ EU AI Act Compliant - Regulation-ready from day one
• 🔬 Forensic Proof - Prevent AI-to-AI training collapse
• 📊 Dataset Marketplace - Access to certified human data

🌟 Why CHECKHC Leads the Market:

Technical Edge:

• 🔐 Triple Validation - Hash + Blockchain + AI + C2PA
• 🔒 Privacy by Design - GDPR-compliant hash-only mode
• ⚡ Solana Speed - 400ms blockchain finality
• 💸 Low Cost - 200x cheaper than Ethereum alternatives

Ecosystem Advantage:

• 🪙 Token Utility - $CHECKHC powers entire ecosystem
• 🔄 Two-Sided Marketplace - Creators supply, AI companies demand
• 📈 Network Effects - More users = more value = more adoption
• 🌐 Open Standards - C2PA, Solana, decentralized storage

First-Mover Lead:

• ⏰ 18-24 months ahead - Competitors just starting
• 🎯 Market Timing - EU AI Act enforcement 2025
• 💰 $22B TAM - Growing 30%/year
• 🚀 Proven Tech - Already deployed, already working

📈 Market Opportunity:

AI Training Data Market:        $10B/year (growing 50%/year)
Content Authenticity Market:    $15B/year (2027 projection)
Digital Notarization Market:    $3B/year
Creator Tools Market:           $5B/year
──────────────────────────────────────────────────────
Total Addressable Market:       $22B/year (2027)
CHECKHC Target (Year 3):        10-20% market share

Our Vision: Become the industry standard for human content certification, like DocuSign is for e-signatures.

🚀 Get Started Today:

For Creators:

1. Try for Free: Get 30 credits/month → app2.photocertif.com
2. Install n8n: Automate your workflow with this package
3. Join Community: Discord

For Enterprises:

1. Book Demo: See bulk certification in action
2. Pilot Program: Test with your documents/images
3. Custom Integration: API, white-label, or n8n automation

📧 Contact: [email protected]
🌐 Official Website: www.checkhc.net ⭐
💼 Platform: app2.photocertif.com

🪙 Get $CHECKHC Tokens:

• Buy: Jupiter Aggregator
• Earn: Certify content and earn tokens
• Stake: Coming soon - Governance + rewards

Token Address: 5tpkrCVVh6tjjve4TuyP8MXBwURufgAnaboaLwo49uau

🙏 Credits

Built with ❤️ by the CHECKHC team.

Powered by:

• n8n - Workflow automation platform
• Solana - High-performance blockchain
• Leading decentralized storage technologies
• Industry-standard NFT protocols

Made by CHECKHC - Making blockchain certification easy & accessible 🚀