ERC721

--- # Bring your IRL cards onchain Tokenize your card for free on [Courtyard.io](https://courtyard.io/?utm_source=card-description&utm_medium=opensea). Keep it vaulted, sell with a click, or burn this NFT to have the identical physical item shipped anywhere in the world, whenever you want. [Learn more](https://courtyard.io/about/?utm_source=card-description&utm_medium=opensea). --- # Proof of Integrity The token ID of this NFT is cryptographically derived from the fingerprint of the matching physical item ("Basketball | PSA 151666303 | 2025 Topps Finest 4 Kon Knueppel | 8 NM-MT"). [Learn more](https://docs.courtyard.io/courtyard/technology/proof-of-integrity/?utm_source=card-description&utm_medium=opensea). By purchasing, selling or owning this NFT, you agree to Courtyard.io's [Terms & Asset Management Services Agreement](https://courtyard.io/nft-terms/?utm_source=card-description&utm_medium=opensea).

Name

2025 Topps Finest #4 Kon Knueppel - Oil Spill Refractor (PSA 8 NM-MT)

Owner

0x0000000000000000000000000000000000000000

ID#74353206…775140

Rarity

N/A

Set

Topps Finest

Year

2025

Event

Sports Pro Pack

Grade

8 NM-MT