WuBlockchain

HashKey Exchange, Hong Kong's leading licensed virtual asset exchange under HashKey Holdings Limited (3887.HK), an established comprehensive digital asset company in Asia, announced that its HashKey Earn Channel has listed US Yield Coin (USYC) - a tokenized money market fund. Circle International Bermuda Limited's USYC is available only to Professional Investors. Eligible investors may submit subscription and redemption requests for USYC in USDC through the HashKey Earn Channel on a daily basis without a daily cut-off time. This provides investors with greater flexibility in managing their asset allocation.
The underlying exposure of USYC primarily consists of short-duration U.S. Treasury bills and reverse repurchase agreements backed by short-term U.S. government securities. Each USYC token represents a share in Hashnote International Short Duration Yield Fund Ltd. Following the listing of USYC, eligible Professional Investors can access a tokenized investment product with exposure primarily to short-duration U.S. government securities-related assets through the HashKey Earn Channel, further diversifying their digital asset portfolios.
The HashKey Earn Channel has established an RWA product offering covers multiple asset classes, including tokenized money market funds, precious metals, fixed-income assets, stablecoins and equity assets (certain products are available to professional investors only). The listing of USYC further expands HashKey Exchange’s RWA product offering, and strengthens the platform’s capabilities in tokenized asset distribution and institutional on-chain asset services.

The U.S. Treasury will buy back up to $6 billion of 10- to 20-year Treasuries on Sept. 10, triple the size of its previous long-dated operation, as part of plans to expand buybacks and improve liquidity in the world’s largest sovereign bond market. The move follows a bond selloff that pushed 30-year yields to their highest since 2007; yields continued rising after the announcement, with the benchmark 10-year yield reaching 4.8528%, its highest since November 2023.

Flop Labs CEO and BitMEX co-founder Arthur Hayes released a draft of the FLOP Network v0.5.0 yellow paper, outlining an AI inference metering and settlement network built on Substrate/FRAME with BABE block production and AlephBFT finality. The project’s roadmap targets a testnet launch in Q4 2026, with token airdrops tied to test participation, followed by a mainnet launch in Q1 2027. The yellow paper remains a draft, with several parameters and mechanisms still subject to change.

Arthur Hayes: The AI Bubble Could Trigger a Larger Financial Crisis in 2028
On August 22, 2026, BitMEX co-founder Arthur Hayes said in an interview with Unchained that once the market begins to question the returns on AI capital expenditures, the financing cycle could reverse, potentially triggering a financial crisis around 2028 that is more severe than the 2008 crisis.
At that point, governments may still respond with large-scale money printing to stabilize the markets. This, he argues, is the core logic behind why Bitcoin could ultimately benefit significantly from the bursting of the AI bubble.

U.S. spot Bitcoin ETFs recorded $120 million in net outflows on Sept. 9, while spot Ether ETFs posted $34.75 million in net inflows, according to SoSoValue. Morgan Stanley’s MSBT led Bitcoin ETF inflows with $4.49 million, while BlackRock’s Staked ETH ETF (ETHB) led Ether products with $22.94 million.

U.S. spot Bitcoin ETFs recorded $120 million in net outflows on Sept. 9, while spot Ether ETFs posted $34.75 million in net inflows, according to SoSoValue. Morgan Stanley’s MSBT led Bitcoin ETF inflows with $4.49 million, while BlackRock’s Staked ETH ETF (ETHB) led Ether products with $22.94 million.

Trezor said its third-party email provider has been breached. The company warned that an email titled “Critical Security Alert: STM32 Entropy Vulnerability” did not come from Trezor and is a phishing attempt, urging users not to click any links. Trezor has taken down the domain and is investigating how the hackers gained access to its legitimate domain.

WuBlockchain data shows that spot trading volume across 14 major exchanges reached $510.4 billion in August, up 19.0% MoM from $429.0 billion in July, with 13 exchanges recording increases. Binance ranked first with $243.1 billion in volume and a 47.6% market share, followed by OKX at $46.9 billion and Coinbase at $40.9 billion. The top three exchanges accounted for 64.8% of total spot volume.

Hunter Biden’s LAPTOP meme coin is trading at around $1.614, down approximately 99.5% from its all-time high of $314.94, GMGN data shows. The token fell as low as $1.116 and has recorded roughly $11.74 million in total trading volume. LAPTOP launched on Base on September 9 with a total supply of 1 billion tokens. Based on the previously disclosed initial circulating supply of 350 million tokens, its circulating market capitalization is estimated at approximately $565 million, with a fully diluted valuation of about $1.61 billion.
On-chain analyst @ai_9684xtpa reported that market makers GSR, G20 and Wintermute received 15.5 million, 5 million and 2.5 million LAPTOP tokens, respectively, representing a combined 2.3% of the total supply.

Vitalik Buterin has proposed EIP-8288, a recursive STARK mempool design that he hopes will be included in Ethereum’s I-Star upgrade, following Hegota.
The proposal aggregates transaction dependencies in the mempool and generates recursive STARK proofs. It aims to reduce the cost of quantum-safe signatures and privacy transactions, support new signature or proof schemes such as Falcon and ML-DSA without requiring EVM changes, and enable private account abstraction.

VerifiedX Foundation has launched a $15 million financing round with Cantor Fitzgerald as its investment banking partner. The project said it has secured initial institutional capital but did not disclose the amount raised so far or the participating investors. The funding is intended to support institutional Bitcoin distribution, custody integrations, exchange listings, and lending infrastructure. VerifiedX also plans to expand its custody integration with BitGo for vBTC and vBTC.b on Base, and pursue centralized exchange listings for vBTC and its native token VFX.

Consensys Software Inc. will split into two independently operated companies. MetaMask will focus on its consumer platform, with Joseph Lubin serving as chairman and CEO.
A newly formed Consensys will retain the protocols and institutional infrastructure businesses, including Linea, with Lubin as executive chairman. MetaMask says users’ apps, assets, keys and access will remain unchanged. The wallet has more than 100 million downloads across roughly 190 countries.

Plume has launched FACTOR, a limited-capacity vault developed in partnership with Tradeable and Deep Ocean Partners. The product directly invests in a curated and actively managed portfolio of invoice factoring and working capital facilities underwritten in partnership with the lender of record, without an intermediary issuer. It offers weekly liquidity and targets a net APY of 14% or more.
This post is sponsored by Plume.

Bastion Trading Limited, a 9.99% shareholder of Solana treasury company SkyAI (Nasdaq: SKYA), said in a Schedule 13D filed with the SEC that it intends to vote “WITHHOLD ALL” on all five incumbent directors at the company’s September 18 annual meeting. Bastion said it is “deeply concerned” about the company’s bylaw amendments that it believes curtailed shareholder rights, the Board’s adoption of a “poison pill” without a shareholder vote, and related-party transactions involving entities linked to a director’s family member.
Separately, independent director Annemarie Tierney resigned from the Board and from its audit and compensation committees on December 19, 2025, approximately two months after being elected at an October special meeting. According to a subsequent company filing, Tierney had raised concerns with management regarding potential conflicts of interest and related-party transactions involving entities connected to the digital asset treasury strategy.
SkyAI, formerly known as Sharps Technology, raised more than $400 million through a PIPE financing in August 2025 to build a Solana treasury and currently holds approximately 2 million SOL.
Other PIPE investors included ParaFi, Pantera, FalconX, Arrington Capital, Avenir, CoinFund, Arche Capital, Electric Capital, and Saba Capital. SKYA currently has a market capitalization of around $59 million, with its share price down roughly 86% over the past year. Shareholders will also vote on a new equity incentive plan authorizing the issuance of up to 5.145 million shares, or 7.2% of a fully diluted share base.

Blockchain analytics firm TRM Labs has completed a follow-on funding round from existing investors, doubling its valuation to $2 billion from about $1 billion roughly six months ago. CEO Esteban Castano did not disclose the amount raised, describing it as relatively small. TRM expects annual recurring revenue to reach $100 million in the coming years and currently has about 500 employees.
The company is also expanding into AI-powered criminal investigations and plans to launch a new platform in November to detect AI-related crimes, including deepfake financial fraud. Previously, Chainalysis accused ICE of awarding TRM Labs a roughly $95 million blockchain analytics contract without a competitive bidding process and questioned the procurement process.

Statistics compiled by the WuBlockchain team:
https://data.wublockchain.xyz/dashboard/exchange_volume
In August 2026, spot trading volume across major exchanges totaled about $510.4 billion, increased approximately 19.0% from $429.0 billion in July 2026. The sample covers 14 exchanges, of which 13 rose and 1 fell month over month.
By notional volume, the top three were Binance $243.1 billion (47.6% share), OKX $46.9 billion (9.2% share), Coinbase $40.9 billion (8.0% share). On concentration, the largest venue held about 47.6%, while the top three combined for about 64.8%.
Note: The data may involve significant wash-trading or bot activity. Figures have been preprocessed, including outlier removal, calibration, and standardization.
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Osmosis said an exploit on the Nomic chain allowed an attacker to double-spend nBTC and send fake vouchers to Osmosis. Osmosis and IBC were not compromised.
39.84 nBTC, representing about 36% of Alloyed BTC’s backing, is affected. Osmosis has paused inflows and outflows, while an emergency upgrade froze 22.65 BTC in the attacker’s address.
Osmosis plans to seek governance approval to seize the frozen assets and use BTC from the community pool to restore full backing.