[neuralkoi]

You might be interested in Arweave or IPFS:

Arweave network is like Bitcoin, but for data: A permanent and decentralized web inside an open ledger. [0]

The InterPlanetary File System (IPFS) is a decentralized protocol, hypermedia, and peer-to-peer (P2P) network for distributed file storage and sharing. The shadow libraries Anna's Archive and Library Genesis host books via IPFS. [1]

[0] https://www.arweave.org/

[1] https://en.wikipedia.org/wiki/InterPlanetary_File_System

[qsera]

If I remember correctly IPFS alone won't guarantee that the file will be around.

[h33t-l4x0r]

You have to pay some service to keep it pinned. Also cross your fingers and hope IPFS is still a thing in 100 years.