Imprint Signet

Imprint Signet is your personal anti-counterfeit studio: issue tamper-proof NFC tags for anything you make, sell or collect — and let every item prove itself. ISSUE TAGS NO COPY CAN REUSE Create a batch, hold a blank NTAG 424 DNA tag to the top of your iPhone, done. Each tag is programmed with a unique cryptographic credential that lives only inside the chip's secure element — it can never be read out, cloned or reused, so a copied tag can never pass as genuine. One issued tag consumes one credit; credit packs are one-time consumable purchases — no subscription, no auto-renewal, and unused credits stay on your account. BUYERS NEVER NEED THIS APP Anyone with an NFC-capable iPhone can simply tap your tag: it opens a web page showing the product's provenance and an authenticity verdict computed from the tag's secure credential. In-app tap-to-verify is also available and always free and unlimited. MANAGE YOUR ISSUE Track batches and product info in one place. No feed, no catalog, nothing publicly browsable — a product record surfaces only when someone physically taps the matching tag. Sign in with email or phone, and delete your account any time from inside the app. Need help? Contact us at imprint@sumirock.com Privacy: https://imprint.sumirock.com/privacy Support: https://imprint.sumirock.com/support