Nix is already most of the way there with content-addressed packages. An IPFS project is also in the works using this feature. A blockchain is unnecessary becau

Nix is already most of the way there with content-addressed packages. An IPFS project is also in the works using this feature. A blockchain is unnecessary because reproducible packages can be checked with `nix build --rebuild` and stores are signed by default. A bridge is unnecessary because Nix wraps language-specific package managers when building and does not allow network access in its sandbox.