Kraken announced plans to launch its first perpetual futures product regulated by the U.S. Commodity Futures Trading Commission (CFTC) in the U.S. market within the next 30 days. Eligible U.S. clients will be able to trade perpetual futures contracts for digital assets such as BTC, ETH, SOL, XRP, ADA, LINK, DOGE, LTC, and AVAX through Kraken Pro. Kraken stated that it will gradually expand the types of contracts and product features, and offer more collateral options in the future. The perpetual futures on Kraken Pro are provided by NinjaTrader Clearing, LLC (operating under the name Kraken Derivatives US), a CFTC-registered futures commission broker. The related spot margin and perpetual futures products will be offered on Bitnomial Exchange, a CFTC-regulated exchange recently acquired by Kraken's parent company, Payward.

Odaily Planet Daily reports that Circle has released a "Post-Quantum Security White Paper," outlining a phased post-quantum resilience roadmap for the long-term security of the Arc blockchain ecosystem. This roadmap covers multiple technical areas, including quantum-secure signatures, private execution environments, validator hardening, infrastructure migration, and account recovery, and is applicable to core components such as the Arc network, USDC, smart contracts, and validators. Circle stated that it plans to provide post-quantum signature support upon the Arc mainnet launch (2026) to enhance the ecosystem's ability to cope with future quantum computing threats.

In the past hour, total liquidations across the network reached $11.16 million, with $8.40 million from long positions, with $2.76 million from short positions. BTC liquidation $1.27 million, ETH liquidation $2.02 million.

According to Odaily Seer, the probability of Strategy selling Bitcoin before May 31st on Polymarket has dropped to 23%, a 17% decrease in 24 hours. Furthermore, the probability of selling before June 30th is 67%, down 6% in 24 hours; and the probability of selling before December 31st is 88%, down 3% in 24 hours. Strategy withdrew 411 BTC from Coinbase today, exactly the same amount deposited the previous day, seemingly refuting the sell rumors. Odaily Seer continues to monitor the prediction market, seeing changes before pricing.

According to data from SoSoValue, Ethereum spot ETFs saw a total net outflow of $17.9112 million yesterday (May 29th, Eastern Time). The Ethereum spot ETF with the largest single-day net inflow was the Fidelity ETF (FETH), with a net inflow of $10.5337 million. FETH's historical total net inflow has reached $2.153 billion. This was followed by the BlackRock Stalled ETH ETF (ETHB), with a net inflow of $9.3242 million. ETHB's historical total net inflow has reached $531 million. The Ethereum spot ETF with the largest single-day net outflow was the BlackRock ETF (ETHA), with a net outflow of $40.7173 million. ETHA's historical total net inflow has reached $11.435 billion. As of press time, the Ethereum spot ETF has a total net asset value of $11.266 billion, with an ETF net asset ratio (market capitalization as a percentage of Ethereum's total market capitalization) of 4.63%, and a cumulative net inflow of $11.374 billion.