WuBlockchain’s daily crypto selection highlighted four market developments across wallet security, AI compute demand, spot bitcoin ETF access and stablecoin supply flows.
UniSat changes the default mnemonic for new wallets to 24 words
UniSat said in its August 2026 security update that browser extension wallet v1.7.19 has changed the default mnemonic length for newly created wallets from 12 words to 24 words. The update also adjusted the wallet creation process and mnemonic management flow.
The company described the move as a long-term security configuration upgrade. Existing 12-word wallets still comply with the BIP-39 standard, and users do not need to make an urgent migration solely because the default setting has changed. UniSat also said it had taken repair or hardening steps based on the scope of impact after receiving several recent community security reports.
Anthropic signs a $9.1 billion long-term cloud computing agreement with Riot Platforms
Anthropic has entered into a long-term cloud computing agreement worth about $9.1 billion with bitcoin mining company Riot Platforms to secure computing capacity for Claude.
Under the deal, Riot will provide 191MW of data center capacity from its Rockdale campus in Texas. The contract runs for 20 years. The item also indicates Riot is moving further from bitcoin mining toward AI data center operations.
BlackRock lowers the minimum size for in-kind BTC conversions into IBIT
According to a post from Bloomberg ETF analyst Eric Balchunas, investors can now convert BTC in kind into IBIT with the minimum size cut from the previous $25 million to $1 million.
BlackRock head of digital assets Robbie Mitchnick said the firm wants to push that threshold lower over time, with the goal of eventually making the mechanism available to investors of any size.
USDT’s 60-day rolling supply change drops by about $4 billion
USDT’s 60-day rolling supply change has declined by about $4 billion. Of that total, $870 million was reduced in the past 11 days alone.
Analyst Stacy Muur said some investors appear to be exiting directly by converting stablecoins into fiat. Stablecoin yields may also be another factor.