OP_CAT proposal to introduce smart contracts to Bitcoin finally obtains ‘BIP number’

Quantum Cats is one of the most popular epitaph projects to date, but OP_CAT itself is far from universally accepted. For example, there is speculation that approval from BIP editor and Bitcoin Core developer Luke Dashjr has been withheld, even though Heilman and Sabouri submitted their BIP proposal months ago. Chain experiment.