Riot Platforms has repaid and terminated its $200 million bitcoin-backed credit facility with Coinbase Credit, according to an SEC filing, releasing the digital assets it had pledged as collateral. The Nasdaq-listed bitcoin miner completed the full voluntary prepayment of all outstanding principal on September 21 and disclosed the transaction in a Form 8-K filed on September 25. The filing states that all obligations under the credit agreement were satisfied and discharged, and the agreement was terminated. The prepayment closed out a secured borrowing arrangement that Riot had used to raise capital while pledging its bitcoin and other digital assets.