kitetorrent/io.github.yuroyami.kitetorrent.torrent/Merkle/pad

pad

fun pad(blocks: Int, pieces: Int): Sha256Hash

The pad hash for a tree level that holds pieces real nodes, given the full leaf level holds blocks nodes. Starts from SHA-256(0) (the all-zero leaf pad) and folds it up (pad = SHA-256(pad || pad)) once per level until the level width reaches blocks. From merkle_pad.