The Tinkers — Final Solution

T-Medic

“A digital notary for medical truth, secured by Cardano.”

The System

Hybrid Storage

Layer	Purpose
Off-chain DB	Accessibility, privacy
On-chain Hash	Truth, immutability

Certify on Cardano

• One-click wallet signature
• Hash embedded in transaction metadata
• Small ADA fee anchors permanently

Tamper Flagging

• Automatic comparison
• Current record vs. blockchain fingerprint
• Mismatch = immediate invalidation

Verification Link

• Generated after certification
• Anyone can audit on Cardanoscan
• Public proof of integrity

Technical Stack

• Fullstack Web — Modern interface
• Cardano — Metadata/Transaction
• Wallet Integration — One-click signing

Live Status

✅ Functional MVP on Cardano Preprod Testnet

Key Achievement

Successful on-chain anchoring of medical record metadata via wallet signature.

The Big Lesson

“T-Medic is not just a website; it is a standard for medical truth.”