In a Digital World, Proof is Everything.

We live in the era of deepfakes, AI hallucinations, and editable reality. Files can be altered. Metadata can be spoofed. When the stakes are high – in court, in copyright disputes, or in sensitive data compliance – a simple screenshot is no longer enough.

You need an anchor. You need proof that stands up to scrutiny, independent of any central server or authority.

nStamp: The Blockchain Seal for the AI Age

nStamp brings the permanence of the NEAR Protocol to your everyday files. We don’t store your data; we secure its fingerprint.

• 🛡️ Verifiable: Instantly prove that a document existed in its exact form at a specific date and time.
• 🔒 Private: Your files never leave your device. A cryptographic hash (digital fingerprint) is generated inside a Trusted Execution Environment (TEE) powered by Phala Network — ensuring tamper-proof processing. Only the hash is stored on-chain..
• ⚖️ Trustless: Powered by the decentralized NEAR network. No third-party gatekeepers. No one can delete or alter your record – not even us.
• 🔗 Domain-Verified: The connection between the app domain and smart contract is verified through the NEAR Domain System, so you always know you’re interacting with the authentic nStamp contract.

How It Works: 3 Steps

1. Hash:

Drag and drop any file – filled PDF, artwork, research data, or code. Your file is processed inside a Trusted Execution Environment (TEE) powered by Phala Network, which generates a unique SHA-256 hash with cryptographic attestation. The TEE guarantees that the hashing process is tamper-proof — no one, not even nStamp, can alter the computation.

2. Anchor on NEAR

Sign a transaction with your wallet. The hash is written to the NEAR blockchain, creating an unbreakable timestamped record linked to your identity.

3. Verify Anywhere

Need to prove it? Anyone can re-hash the original file and query the blockchain. If the fingerprints match, the proof is absolute. The link between the app domain (app.nstamp.xyz) and the smart contract (v1.nstamp.near) is publicly verifiable through the NEAR Domain System.

Who Needs nStamp?

⚖️ Legal Professionals

Judges are asking: “Did you use AI to draft this?” Create an audit trail. Stamp your research, AI prompts, and final human-verified drafts. Prove your process with cryptographic certainty.

🎨 Creators & Artists

Proving you’re the original creator in a world of generative AI. Timestamp your sketches, layers, and drafts as you work. Establish “Prior Art” before copyright registration is processed.

🤖 AI Developers

Black-box models lack transparency. Certify your model’s outputs and anchor attestations from Trusted Execution Environments (TEEs) to prove your AI ran exactly as claimed.

🔬 Researchers & Academics

Preprint fraud and data manipulation undermine credibility. Stamp your datasets, methodologies, and findings at each stage to create a verifiable research timeline.

 Powered by NEAR. Built by Learn NEAR Club.

Join thousands of users securing their digital history on one of the world’s fastest, most scalable blockchains.

• Negligible Cost: Fractions of a cent to stamp.
• Instant Finality: Records confirmed in seconds.
• Carbon Neutral: NEAR is a climate-neutral blockchain.
• TEE-Verified: Hashing powered by Phala Network’s Trusted Execution Environment.
• Domain-Verified: Contract authenticity confirmed via NEAR Domain System.