canonical tree hashing Chunk Size: 4 KB (4096 bytes) Content is split into fixed 4 KB chunks (4096 bytes). Each chunk is hashed via `hash_leaf(data, counter, is_root)`. At 56 input bytes per rate block, one 4 KB chunk requires ⌈4096/56⌉ = 74 absorptions. The last chunk may be shorter. No…