Tiny. Waterproof. Life-saving.
A fingernail-sized NFC patch that carries blood type, allergies, medications and emergency contacts. No battery, no internet, readable by any modern phone in one second.
Four core strengths
No power
Battery-free passive NFC. Ten-year retention with no charging infrastructure.
Survives disasters
Readable through blackouts, fire, flood and network loss. Fully offline.
Ransomware-immune
No honeypot — the patient carries the record regardless of hospital breaches or outages.
Zero viruses
A locked structure cannot carry viruses and is harmless to the host — safe on hospital and clinic PCs.
One patch. Any surface.

- Two formats — RadPatch (iron-on, hair-iron, peel & stick: clothing, gear, vehicles, pets) / RadCard™ (wallet or pocket, cloud access).
- Watch bands, key rings, phone cases, clothing, sports gear, pet collars — attach once, read anywhere.
- Intelligent Iron-ON (I²OP) — visible only at 3× zoom, washable and waterproof, rewritable (PIN-protected).
Specifications
| Item | Value |
|---|---|
| Size | From 3.5 × 3.5 mm · custom sizes |
| Technology | Passive NFC · WMSD format (iDataMap proprietary encrypted NFC) |
| Encryption | AES-256-GCM · HKDF-SHA256 · WMEC 32B master key |
| Durability | Waterproof · washable |
| Rewritable | Yes — PIN-protected |
| Application | Iron-on · hair-iron · peel & stick |
| Provisioning | Only WaveMed-provisioned tags are writable · third-party NFC blocked |
8:47 AM. A cycling accident.

Sarah wears a RadPatch on her helmet (blood type O-, penicillin allergy). After a crash she is unconscious with no ID. Paramedic Jin taps the helmet with 𝒱WaveMed — one second. Penicillin is avoided, the hospital is told O-, her family is contacted automatically. Sarah is stable.
