Asset Lifecycle
7-state cryptographic lifecycle powering product authentication from manufacture to end-of-life.
State Flow
0: NONE
→
1: MINTED
→
2: BOUND
→
3: ACTIVATED
→
4: CLAIMED
→
5: FLAGGED
→
6: RECYCLED
Lifecycle Phases
Phase 1: Manufacturing
NONE → MINTED → BOUND. Brand mints a digital twin NFT and binds it to an NFC chip during manufacturing.
Phase 2: Supply Chain
ACTIVATED → CLAIMED. Product is activated for sale and eventually claimed by the consumer.
Phase 3: Protection
FLAGGED → RECYCLED. Suspicious items are flagged for investigation. Resolved items can be recycled.
State Transitions
| From | To | Function | Required Badge |
|---|---|---|---|
| NONE | MINTED | mintAsset() | CAN_MINT |
| MINTED | BOUND | bindNFC() | CAN_BIND |
| BOUND | ACTIVATED | activateAsset() | CAN_ACTIVATE |
| ACTIVATED | CLAIMED | claimAsset() | CAN_TRANSFER |
| ANY | FLAGGED | flagAsset() | CAN_FLAG |
| FLAGGED | RECYCLED | recycleAsset() | CAN_RECYCLE |
Actor Permission Matrix
| Actor | Mint | Bind | Activate | Transfer | Flag | Recycle | Govern |
|---|---|---|---|---|---|---|---|
| Admin | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| Manufacturer | ✓ | ✓ | — | — | — | — | — |
| Distributor | — | — | ✓ | ✓ | ✓ | — | — |
| Retailer | — | — | ✓ | ✓ | ✓ | — | — |
| Consumer | — | — | — | ✓ | ✓ | — | — |
| Auditor | — | — | — | — | ✓ | ✓ | — |
| Agent | — | — | — | — | ✓ | — | ✓ |
Verification Signals
5-signal weighted verification pipeline for authenticity assessment.
NFC Tag UID (30%)
AES-128 + SUN MAC cryptographic authentication
Owner Wallet (25%)
On-chain ownership verification via ERC-721
Lifecycle State (20%)
Valid state transition history check
Geolocation (15%)
Geographic plausibility analysis
Timestamp (10%)
Temporal consistency validation
NFC Authentication Flow
1
Consumer taps NFC tag with phone
2
Phone reads NTAG 424 DNA UID + SUN MAC
3
Gateway verifies AES-128 CMAC signature
4
On-chain lookup: asset state + ownership
5
5-signal verification pipeline runs
6
Result: confidence score (0-100) + verdict