I will be updating ElectrumX to provide merkle proofs along with block headers.

Then lightweight SPV clients like Electron Cash can securely verify transactions without downloading 530,000+ headers on initial start.

"PoW change is the only way"

Do you think Cobra-Bitcoin could be Santa Claus?
ref.

https://twitter.com/CobraBitcoin/status/1000067287372713985

P.S. thanks @memo for poll feature! It's great!