Capstone - GoKawiil

DOJ Seizes Bank Accounts Linked to Tether Amid Capstone Fraud Probe

The Financial Times reported that the US Department of Justice has seized millions of dollars in bank accounts and crypto wallets connected to Tether Limited, issuer of the Tether stablecoin. The seizures stem from an FBI investigation into Capstone, an unlicensed payment processor accused of running an elder-fraud scheme that funneled illicit funds into crypto, with the money reportedly moving through offshore bank EQIBank, which serviced both Tether and Bitfinex.

futurism.com · 2026-09-25

Developer builds B200 attention CUDA kernel reaching 94.4% of FlashAttention-4 speed

A technical blog post walks through building a custom attention kernel for Nvidia's Blackwell B200 GPU entirely from scratch, using CUDA and some PTX code. Through a 14-step progression of optimizations illustrated with 60 diagrams, the kernel reaches 94.4% of FlashAttention-4's performance on 4K, 8K, and 16K sequence shapes, and is demonstrated by plugging it into a video-generation model.

iaroslavelistratov.github.io · 2026-09-02