Just a cursory look at the CLI, it looks like you have the ability to get stats on each block (including size, https://docs.ipfs.io/reference/cli/#ipfs-block-st

Just a cursory look at the CLI, it looks like you have the ability to get stats on each block (including size, https://docs.ipfs.io/reference/cli/#ipfs-block-stat https://docs.ipfs.io/reference/cli/#ipfs-block-stat), and pin them (https://docs.ipfs.io/how-to/pin-files/#three-kinds-of-pins https://docs.ipfs.io/how-to/pin-files/#three-kinds-of-pins). I'm betting someone could create an open source project to traverse the Merkel tree, choose random blocks, and pin them... It could be made smarter by also checking the number of peers per block and prioritize the least pinned blocks. Edit: And a related discussion I found: https://www.reddit.com/r/ipfs/comments/b4he2m/idea_partialselective_pinning/ https://www.reddit.com/r/ipfs/comments/b4he2m/idea_partialse...