NFC NTAG424 DNA chips embedded in physical goods, linked to on-chain certificates. One tap with any smartphone proves authenticity — impossible to clone, impossible to fake. The counterfeiting era is over. Welcome to cryptographic proof of authenticity that lives in the product itself.
Good Authenticity is the most advanced product authentication system ever built. It fuses the cutting-edge NFC NTAG424 DNA chip by NXP — the gold standard in hardware authentication — with ATSHI Network's immutable Transaction Chains to create an unbreakable link between the physical product and its digital certificate.
Tap-to-Trust in 5 Steps
The NTAG424 DNA is not just another NFC chip. It is the most sophisticated anti-counterfeiting hardware ever mass-produced — and ATSHI Network unlocks its full potential with blockchain-backed verification.
Each tap generates a unique encrypted message using Secure Unique NFC (SUN). It is mathematically impossible to clone or replay — every tap produces a completely new cryptographic signature. Counterfeiters have zero chance.
Prevents replay attacks with absolute certainty. If someone copies a tap result, the counter will not match on the next verification. The chip knows how many times it has been read — and the blockchain knows too.
Military-grade encryption between chip and reader. The same encryption standard trusted by governments and intelligence agencies worldwide. Every communication is shielded from interception.
Standard NFC on any modern smartphone — tap and verify in under 3 seconds. No downloads, no accounts, no friction. Your customers simply tap and know. It could not be simpler.
The chip can detect physical tampering at the hardware level. Broken seal? Invalid certificate. Removed tag? Authentication fails. The product itself becomes its own security guard.
~$0.30–0.50 per chip at volume — a fraction of a percent of the product's value. Affordable enough for luxury goods, pharmaceuticals, wine, electronics, and collectibles. Enterprise-grade protection at scale.
From luxury handbags to life-saving pharmaceuticals — Good Authenticity is the universal weapon against counterfeiting. If your product has value, it deserves cryptographic protection.
Authenticate handbags, watches, sneakers, and haute couture. Digital certificate of authenticity with seamless ownership transfer. Every resale is verified. Every counterfeit is exposed. Luxury brands finally have an unbreakable seal of trust.
Provenance from vineyard to glass, cryptographically proven. Sealed bottle = valid certificate. Opened = ownership transferred. Protect prestigious vintages from fraud. Every bottle tells its true story.
Anti-counterfeiting for drugs that saves lives. Track from manufacturer to patient. Meet serialization requirements (EU FMD, DSCSA). Counterfeit medicines kill — Good Authenticity stops them at the source.
Digital certificate of authenticity for physical art, limited editions, sports memorabilia, and rare collectibles. Provenance is no longer a paper trail — it is an immutable, verifiable blockchain record.
Verify genuine components. Combat counterfeit parts in aviation, automotive, and medical devices where a fake part can cost lives. Every component authenticated from factory to assembly line.
Organic certification, fair trade verification, origin proof for premium products. Consumers tap and see exactly where their food comes from, how it was produced, and that every claim is real.
Under the hood, Good Authenticity is a masterpiece of cryptographic engineering. The NTAG424 DNA chip and the ATSHI Network smart contracts work in perfect concert to deliver instant, irrefutable proof of authenticity.
Verification Pipeline
See how ATSHI + NTAG424 DNA obliterates every existing authentication solution on every dimension that matters. This is not an incremental improvement — it is a generational leap.
| Feature | QR Codes | Standard NFC | Certilogo | VeChain ToolChain | ATSHI + NTAG424 |
|---|---|---|---|---|---|
| Clone Protection | None (copyable) | Basic UID | Cloud-based | Basic | Cryptographic SUN |
| Replay Attack | Vulnerable | Vulnerable | Cloud check | Limited | Rolling counter |
| App Required | Camera | Yes | Yes | Yes | No — native NFC |
| Blockchain Proof | No | No | No | VeChain (public) | Native Transaction Chain |
| Ownership Transfer | No | No | No | Limited | On-chain, verifiable |
| Cost per Unit | ~$0.01 | ~$0.15 | Subscription | ~$0.10–0.30 | ~$0.30–0.50 |
| Tamper Detection | No | No | No | No | Yes (chip-level) |
| Privacy | None | Limited | Cloud-dependent | Public chain | Per-field encryption |
ULTIM TRUST is the dedicated management platform for configuring NFC NTAG424 DNA chips and GS1 Digital Link pages on ATSHI Network.
Counterfeiting costs the global economy over $500 billion per year. Your brand, your customers, and your revenue deserve better than QR codes and paper certificates. Deploy NFC NTAG424 DNA + ATSHI Network and give every product an unbreakable, tap-to-verify proof of authenticity that lives forever on the blockchain.