github.com/makew0rld/merkdir merkdir creates Merkle trees from your directories, and can generate inclusion proofs for any files in those directories. === Use Case Let's say you have a bunch of files in your ~/Documents folder, some public, some private. Run merkdir on the directory, and you get a root hash which anonymously represents all your documents. Now you can publish that, sign it, timestamp it, whatever you like. At some later date, you can publish one of these (unchanged) documents along with the inclusion proof generated by merkdir. This will provably connect the file back to root hash that you published/signed/etc in the past. Using the power of Merkle trees, merkdir allows you to prove things about millions of files at once. It can make signing or timestamping all the files in your home directory efficient and secure.