Offered by CryptoConsortium.org
A Certified Bitcoin Expert shares all of the knowledge as their CBP peers, but with much more depth. CBXes also possess expert-level knowledge about the Bitcoin protocol and network and have demonstrated the ability to develop applications which integrate with the Bitcoin network.
CBXes understand how peers communicate on the Bitcoin network, how transactions are crafted at the byte level and how Bitcoin scripts can be written to customize the behaviour of transactions.