The Privacy Dilemma
Why is private metadata on a public chain so hard?
It seems like a paradox. Public blockchains are designed to be transparent. Everyone can see everything. Thrifty NFT solves this "impossible" dilemma by implementing a Triple-Layer Encryption Protocol.
🛡️ The 3-Checkpoint Solution
We encrypt data at three distinct stages to ensure that "Public Ledger" does not mean "Public Access."
1. Contract Level Encryption
The tokenURI function—standard in all NFTs—is modified.
- The Mask: The actual URI is not readable by standard marketplace bots or explorers.
- Access Control: Only the verified owner's wallet can trigger the smart contract to reveal the location of the encrypted vault.
- Fallback: Even if one were to find the URI manually, the destination is useless without the key.
2. Dapp Level Decryption
Our marketplace is not just a UI; it is a Decentralized Gatekeeper.
No Middleman: The dapp uses your wallet signature to fetch the decryption keys from the decentralized network. We never see your keys.
3. IPFS Level Security
The final line of defense.
- Encrypted Storage: The content (e.g., the PDF or MP3) is encrypted before it is uploaded to IPFS.
- Redundancy: Even if our dapp goes offline, the content lives on IPFS forever. You can use our open-source recovery tool to decrypt your assets manually using your wallet.
📝 Summary
| Level | Status | Resilience |
|---|---|---|
| Contract | 🟢 Fully Decentralized | Immutable smart contract logic. |
| Dapp | 🟢 Decentralized API | Trustless API for key retrieval. |
| IPFS | 🟢 Encrypted & Distributed | Censorship-resistant storage. |
The Result: Even if the Thrifty website is seized, hacked, or deleted, you still own your data, and only you can read it.