Copyright Shield

What is Copyright Shield

Copyright Shield is a privacy-focused content protection application within the ProMediaFlow platform. It allows you to create permanent, tamper-proof proof of authorship for your digital assets—including applications, scripts, music, and project files—without ever uploading your raw files to external servers or the internet.

The application uses a trustless registry model. It calculates a unique cryptographic fingerprint of your file locally inside your web browser. By linking an external cryptocurrency wallet, you digitally sign this fingerprint and publish it to the blockchain, establishing verifiable proof of ownership while keeping your original creative work completely private on your local device.

Getting started

To start protecting your assets with Copyright Shield:

1. Open the App: Navigate to your ProMediaFlow dashboard and select Copyright Shield.
2. Prepare Your Wallet: Install and set up the MetaMask browser extension or mobile app. Make sure your wallet is unlocked and connected to the appropriate network before starting.
3. Select Your File: Have the digital asset you want to register ready on your local computer or device.

Note on Platform Credits & Costs: Registering assets with Copyright Shield consumes zero ProMediaFlow platform credits. However, recording your ownership proof on the blockchain requires authorizing network transaction fees (gas fees) native to the Polygon network, paid directly through your connected MetaMask wallet.

Key capabilities

• Polygon Ledger Registration: Publish your signed cryptographic fingerprints directly to the decentralized Polygon blockchain to create an immutable, permanent, and legally verifiable public record of ownership.
• Cryptographic Asset Signing: Use your connected wallet to digitally sign locally calculated content fingerprints, formally asserting your authorship over your digital work.
• Local Cryptographic Fingerprinting: Automatically generate a secure SHA-256 cryptographic fingerprint of your file inside your web browser. Because the fingerprint is calculated on your device, your actual files are never transmitted or stored externally.
• External Wallet Integration: Link your MetaMask wallet directly through the app interface to manage cryptographic signatures, approve signing requests, and authorize blockchain transactions.

How to use it

Registering an asset takes four steps:

1. Generate the Fingerprint: Select or drag your file into the application. Copyright Shield automatically calculates and displays its unique SHA-256 cryptographic hash.
2. Connect Your Wallet: Click the connection option within the application to link your external MetaMask wallet.
3. Sign the Hash: Review the computed content hash displayed on your screen, then approve the digital signature request inside your MetaMask wallet.
4. Complete On-Chain Registration: Confirm the final transaction in your wallet to broadcast your signed hash to the Polygon network. Once the transaction is validated on the network, your proof of authorship is permanently registered.

Tips & notes

• Permanent and Unalterable: Blockchain records cannot be edited, updated, or deleted once confirmed. Always double-check that you are fingerprinting the final, correct version of your file before authorizing the transaction.
• Privacy-First Design: Your raw files are never uploaded to ProMediaFlow servers, cloud storage, or the blockchain. Only the cryptographic fingerprint is processed and signed.
• Wallet Readiness: Ensure your MetaMask wallet is unlocked, active, and funded to cover native Polygon transaction (gas) fees prior to completing your registration.