According to an announcement by Coinbase Assets on social media, the cryptocurrency exchange Coinbase plans to shut down offline for 8 hours at 9:00 on March 4, 2023 Pacific time (01:00 on March 5, Beijing time) for scheduled technical system upgrades. It is reported that the impact of this outage is relatively large. At that time, Coinbase․ com website and mobile app, Coinbase Pro, Coinbase Card, Coinbase Prime, and Exchange transactions and transfers will not be possible. Coinbase wallet transfers cannot be used, token sending/receiving and transaction submission will continue to be used, and there may be some delays in Coinbase custody, but Coinbase derivatives, Coinbase Cloud and Coinbase NFT will not be affected.