The Verification Layer for Card Grading.
Securing physical TCG slabs with immutable cryptographic proofs. Anchored to Bitcoin. Verifiable forever. Zero trust required.
Verify
Every certificate, publicly checkable.
Got a graded slab? Check it. Scan, verify, done.
Graded by Partner Lab · Verified by SatGrade
live demo · real certificate, anchored to Bitcoin mainnet
Technology
Your lab grades. We make it provable.
SatGrade is the cryptographic layer inside partner certificates. Invisible until someone needs proof.
Partner Grades
Your lab grades and seals the slab. Your brand, your expertise, your customer.
SatGrade Secures
Hashing runs in the background. Your labels print immediately, and Bitcoin anchoring completes right after. Zero disruption to your existing workflow.
Bitcoin Anchors
We batch-inscribe the daily Merkle root to Bitcoin via OP_RETURN. Permanent, immutable, independent of any server.
Buyers Verify
An encrypted NFC chip is bonded inside the slab before it seals. Any buyer taps it with a phone and the chip returns a one-time signature proving the physical object is genuine. The chip proves the object. Bitcoin proves the record.
On-chain data flow