fractional reserve bitcoin system?

Coinbase knows that at certain time/place,
its clients won’t withdraw their bitcoin

100% altogether at the same time

proof of reserve?

Coinbase has become the root of all evils, the FEDERAL RESERVE of Bitcoin

decentralization will kill them https://image.nostr.build/8d7e55949e83cd53e032f9075f23ac4e908348a4e2b715a5445cf01bdf9f7014.jpg