MPE Vault ledger
Ken Griffey Jr. — chain of custody
Every hand this slab has passed through since it was graded, plus the authenticity fingerprint that ties the record to the physical card.
🔒 Verified · Secured in the MPE Vault
PlayerKen Griffey Jr.
Year1991
SetUpper Deck
Card #555
GradeMpe Mint
SerialMPE-13422635
⛓️ Authenticity & custody
🔐Authenticity fingerprint #d5cfb2761d0
🧾Ledger reference be83af3e05e
🏭Graded & encapsulated by MPE Grading
🏦Held in the MPE Vault · insured digital custody
🔗 Ownership & provenance
1 recorded hand-off since grading.
🔄
Jeffrey B. → Piggy’s Place ·
💰 Sales history
No recorded marketplace sales yet — this card hasn't changed hands on
MPE.