Proof Verification
Verify any Kendo Card
Enter a card UID or order proof reference to validate provenance in the Kronos ecosystem.
Identity
Guest Session
KR-ANON-PREVIEW
Trust surface
Read-only verification
Proof Verification
Verify any Kendo Card
Enter a card UID (from NFC scan) or an order number to see its full proof chain. Every card issued by Kendo Cards has a cryptographic proof anchor in the Kronos ecosystem.
How Proof Works
Order Created
When you place an order at kendocards.com, a proof anchor is generated — a SHA-256 hash of the order data, timestamped and signed.
Card Printed
Your card is printed on the Evolis Primacy 2. Full-colour YMCKO on CR80 PVC. Each card's design is linked to its proof anchor.
NFC Programmed
The NFC chip is programmed with your data: Kronos ID, order reference, wallet address (if provided), and the proof anchor hash.
Proof Verified
When you tap the card with any NFC reader, it reveals the proof data. Enter the card UID here to see the full chain — from order to print to ship.
Technical Details
Hash Algorithm: SHA-256
NFC Standard: MIFARE DESFire EV2 / NTAG 424 DNA
Card Format: CR80 (85.6mm × 53.98mm) PVC
Proof Chain: Kronos Architecture → KendoSoil Node
Identity Signing: Ed25519
NFC Memory Map: Sector 0 (Identity) · Sector 1 (Wallet) · Sector 2 (Proof) · Sector 3 (Access)