The artwork file can only be accessed by the NFT holder and issuer.
The complete ownership history, along with the artwork's authenticity and uniqueness, is securely stored in the Startrail Registry Record (SRR).

This smart contract exists on the L2 Polygon network using Startbahn platform called Startrail.
Transferring to accounts not registered on the Startbahn platform may require direct contract interaction.
The preferred method of transfer is to create a Startbahn Cert. account.

SBI Art Auction, Tokyo, March 12, 2022