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# About this connected collectible
Courtyard **connected collectibles** are backed by unique, physical assets.
Keep it vaulted, sell with a click, or burn this NFT to have your identical physical item shipped anywhere in the world, at any time.
This NFT is uniquely identifiable by **[Proof of Integrity](https://docs.courtyard.io/courtyard/technology/proof-of-integrity)**, which is cryptographically derived from the fingerprint of the matching physical item ("Baseball Cards | PSA 62482625 | 2020 Bowman Chrome #CRAZC Zack Collins | PSA 9 MINT").
By purchasing, selling or owning this NFT, you agree to Courtyard's [NFT Terms & Asset Management Services Agreement](https://courtyard.io/nf...