OP_RETURN
XolosArmy Opinion: eCash stays true to Electronic Cash, while BCH drifts toward Ethereum UTXO. Read more: https://xolosarmy.xyz/blog/electronic-cash.html
Hive just made an eCash clone, but still not sure why we need that? AFAIK BCH SDK already handle most of the smart transactions that we need. I would even go into coding for the kids.
