[News Brief] Apr 22, morning | The U.S. and Japan jointly intervene in the foreign exchange market for the first time in 15 years to defend the yen

With the CLARITY Act removed from the Senate schedule on Monday, the key question has become whether the bill can be revived within 72 hours before the Senate goes into recess.

CryptoSlate reported that, under normal procedure, a motion to proceed would need to be filed by Wednesday for a standard Friday vote. It added that a vote could take place sooner if advanced through a bipartisan petition or unanimous consent.

Democratic staff on the U.S. Senate Banking Committee released a new analysis of the CLARITY Act, renewing objections that the bill would leave open channels for President Trump to profit from his cryptocurrency businesses.

This follows financial disclosure documents showing that Trump earned about $1.4 billion in crypto-related income in 2025. Bitcoin.com News said the analysis could further complicate the bill’s prospects ahead of a Senate vote. The exact voting schedule and any official response from the Senate Banking Committee have not been confirmed.

USDC Treasury, under Circle, the issuer of the stablecoin USDC, minted 250 million USDC on the Solana blockchain.

Whale Alert, an on-chain tracking service, reported the minting activity. Whale Alert provides real-time tracking and disclosure of large token mints, burns, and transfers. This issuance increased the circulating supply of USDC on the Solana network.

Bitcoin hardware wallet maker Coldcard discarded inventory loaded with firmware found to contain a vulnerability and has temporarily suspended shipments of new devices.

The company advised users to move their funds to another wallet. Odaily reported that Coldcard took these measures. Specific details about the vulnerability and its scope of impact have not been confirmed.

A fourth coordinated attack suspected of targeting Coldcard hardware wallet users is reportedly underway.

Between blocks 960,778 and 960,792, 218 transactions occurred over about two and a half hours, affecting 462 addresses and draining 388.92748828 BTC to 216 new destination addresses. MarsBit reported this on Aug. 3, citing monitoring by Galaxy’s head of research. Similar transactions are still awaiting confirmation in the mempool, and previously identified transactions were found to have Replace-By-Fee (RBF) enabled. All transaction inputs were confirmed to be no earlier than the Coldcard firmware boundary point. During the period, the sweep rate reached 13.8 per block, about 45 times higher than the 0.3 per block seen in a control period before the incident. The transaction pattern was one-to-one, with each victim address corresponding to one new destination address; only one destination address received funds twice, and no central collection address was identified. Some funds have already been moved to secondary intermediary addresses.

The United States and Japan reportedly carried out a joint foreign exchange market intervention to defend the yen for the first time in 15 years.

Crypto Briefing said the coordinated intervention signals rising concern over global financial market instability and could trigger broader volatility across risk assets, including cryptocurrencies. Specific details such as the scale and timing of the intervention, as well as the dollar-yen exchange rate level, were not provided in the report.

South Korea’s KOSPI index extended its intraday decline to as much as 5% during the morning session on Aug. 3.

At the same time, shares of Samsung Electronics and SK Hynix also widened their losses to around 8%. Odaily reported that the KOSPI and the two chipmakers’ stock declines had expanded to those levels that day.

Licensed digital asset exchange HashKey Exchange has been approved to open a client funds account with JPMorgan Chase.

HashKey is the first licensed digital asset exchange in Asia to receive such approval. TechFlow Post reported the development. The timing of the approval, operational details of the account, and the background were not confirmed.

The combined July trading volume of prediction market platforms Polymarket, Polymarket US, and Kalshi reached a record high of $50.6 billion.

According to The Block, Polymarket US recorded a 54% increase in trading volume to $5 billion, while Polymarket’s volume fell 26% to $7.9 billion. Kalshi’s individual trading volume was not specified.

Spot XRP exchange-traded funds (ETFs) recorded net inflows.

The result stood out because it came while the broader cryptocurrency market was under pressure. U.Today said the timing of the inflows was particularly notable given recent market conditions. However, the exact size and timing of the inflows were not disclosed.