<ul><li>BlackRock submitted an amendment to its physically-backed Bitcoin ETF, requiring Bitcoin withdrawals to be processed within 12 hours.</li><li>The amendment aims to address concerns about Coinbase potentially trading in 'paper BTC' instead of real Bitcoin held for the ETFs.</li><li>Coinbase CEO, Brian Armstrong, assured investors that all transactions are processed on the blockchain and the Bitcoin for the ETFs is real and accounted for.</li><li>There were concerns that the recent slump in Bitcoin's price could be attributed to Coinbase holding Bitcoin in ways that didn't reflect its market value.</li></ul>

BlackRock Bitcoin ETF requires 12-hour BTC withdrawals

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