[SECTION_TECH]
MATTER AND PROTOCOL
Two markings, two uses. The GS1 Digital Link QR carries the product passport and reads everywhere. The NTAG424 DNA chip carries proof of authenticity for the specimen. Here is what sits behind each.
[COMPONENT_00]GS1 DIGITAL LINK
Structured product link
Every piece is accompanied by a GS1 Digital Link QR. The URL is structured: it identifies the product, opens the public digital passport and traceability, with no app to install. This marking is systematic. Alone, it does not prove the authenticity of the specific specimen scanned.
[CAPABILITIES]
- Product link resolved without an app
- Public digital passport and history
- Camera and browser compatible
- Distinct from individual NFC proof
[EXPLODED_VIEW]
[COMPONENT_01]NXP NTAG424 DNA
NFC Chip Datasheet
Memory416 bytes
UID Length7 bytes
EncryptionAES-128
CMAC Length8 bytes
Read Range1 to 3cm depending on device
Data Retention50 years
After encodingIrreversible lock
Operating Temperature-25°C to +70°C
[SECURITY]
- • SUN messaging (Secure Unique NFC)
- • Per-chip diversified key, derived from the UID
- • Monotonic counter against replay
- • Encrypted dynamic address on every read
- • Heritage-grade durability
[COMPONENT_02]ARCHIVAL SUBSTRATE
Paper Material Properties
Weight600g laminated
CompositionCotton
Acid-FreeYes
Archival GradeISO 9706
SurfaceMatte
ColorNatural white
OpacityHigh
Thickness~1mm
[CERTIFICATIONS]
- • ISO 9706 archival standard
- • FSC-certified sourcing
- • Museum-grade permanence
- • Lignin-free and acid-free
[PARTNER_API]v1
Partner API & Integration
| METHOD | ENDPOINT | DESCRIPTION |
|---|---|---|
| POST | /api/v1/products | Register a product model |
| POST | /api/v1/certificates/mint | Certify a piece and anchor it |
| GET | /api/v1/certificates/{id}/proof | Retrieve the anchoring proof of a certification |
| GET | /api/v1/logs | Consult the audit log |
[EXAMPLE_REQUEST]
curl -X GET https://api.makesure.art/api/v1/certificates/{id}/proof \
-H "x-api-key: ms_live_YOUR_KEY"The partner API is available on request. Chip identifiers never circulate: only opaque public identifiers transit through the API, and the audit log is designed without personal data.