//clika-runtime/io.clika.runtime/Ops/hashChain
hashChain
[common]
fun hashChain(rows: Tensor, parent: Tensor, seed: Long = 0): Tensor
hashChain(rows: Tensor, parent: Tensor, seed: Long = 0L): the hash_chain operator. Rowwise 128-bit CHAINED hash: for rows [N, ..] and a [2] UInt64 parent (zeros = the chain's zero element), row i's digest hashes (digest i-1 ‖ row i's packed bytes); one dispatch computes a whole sequence's rolling content hashes. Same portability contract as hash_64.