🛡️ Is this card real? One tap tells you

An NFC tag can be rewritten by anyone — so we give the card a seal.

NFC tags are rewritable by design. Any phone with a free app can overwrite a card it finds with a phishing URL — and the finder can't tell the difference. What they see is still a web page, still saying "please contact the family". Almost no vendor handles this: once the card ships, whatever ends up on that tag is nobody's problem.

Every OMIPOKA link a finder can scan carries a cryptographic signature. The public page verifies it before rendering, and only then shows "✅ Verified OMIPOKA official card" at the top, along with the card's creation date. It works like the padlock in your browser's address bar — over time people learn the rule: no seal, no data. The badge covers the guardian series and blank link cards; video gift cards and digital business cards are a different context (you're receiving a gift or a business card, not finding something lost), so the badge is deliberately hidden there — while the tamper check and owner alerts still run.

When the signature doesn't match — the tag has been tampered with — the page doesn't quietly render the content. It replaces the whole screen with a warning and gives the finder three things to check: was this card actually shipped by OMIPOKA, is the address omipoka.com or app.omipoka.com, and if anything looks off, contact the owner directly instead of following a link. At the same moment, the owner gets a push notification, an email, and a LINE message.

Want it airtight? Smart accessories offer a Permanent Bind add-on — written and bound to one specific card before shipping, with no re-binding or unbinding afterwards. The card's content stays editable from your dashboard at any time.

See smart accessories & write services

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"Verified official card" badge on the public page

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Broken signature — full-screen warning

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Signature anomaly — owner alerted by push, email and LINE

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Optional permanent bind — no re-binding or unbinding