Sakutaro Poems NFTs

Thirty-nine poems from Sakutaro Hagiwara's late self-selected collection "Shukumei" have been inscribed on the blockchain as full-on-chain NFTs. These NFTs have a little mysterious property in that their contents change depending on the owner. These NFTs will be issued on multiple blockchains. NFTs can be issued on chains such as Ethereum, Polygon, BSC, Arbitrum, Optimism, Shiden, Avalanche C-Chain, Flow, Tezos, Sui, Aptos, etc. Up to 39 NFTs can be issued for each chain. I like the literary works of Sakutaro Hagiwara. What can we do to add value to this and keep it in the digital space for a long time? How enduring are the NFT standards and SVG data? Which chains should be used to ensure that they remain in place for a long time? This is an experiment that will be conducted many years into the future.