Help me understand. Why sign resources? To prove authorship? What prevents me from signing a resource that's actually "someone else's"? Your idea about content

Help me understand. Why sign resources? To prove authorship? What prevents me from signing a resource that's actually "someone else's"? Your idea about content-addressable storage (ie. by hash) has been implemented in networks like IFPS [1], Freenet [2], and Bittorrent [3]. With the introduction of a recent spec called subresource integrity [4], a content-addressable cache/database was proposed, but it has an interesting security implication (failure mode) discussed in this HN thread [5]. [1] https://ipfs.io/ https://ipfs.io/ [2] https://freenetproject.org/ https://freenetproject.org/ [3] http://stackoverflow.com/questions/3844502/how-do-bittorrent-magnet-links-work http://stackoverflow.com/questions/3844502/how-do-bittorrent... [4] https://www.w3.org/TR/SRI/ https://www.w3.org/TR/SRI/ [5] https://news.ycombinator.com/item?id=10310594 https://news.ycombinator.com/item?id=10310594