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TXRANK, a dynamic, real-time tool for detecting anomalous blockchain transactions, generates tracing representations of activity and trains a large language model as an Intrusion Detection System. Traditional models have well-defined search spaces, rules, and patterns, but TXRANK is unrestricted in these ways, enabling it to detect a broader set of anomalies. Tested on Ethereum transactions, it effectively identified abnormal transactions in a dataset of 68 million transactions with an average throughput of 2,284 transactions per second. Contributions to the crypto ecosystem through this work include custom data encoding, domain-specific tokenization, and a tree encoding method tailored for EVM trace representation.
Kraken is defying the IRS's demands for user information, claiming it's an "unjustified treasure hunt." The crypto exchange seeks a federal court order to halt the inquiry, arguing the IRS's request exceeds previous case boundaries.
21Shares and ARK Investment Management refiled an application for a spot-Bitcoin ETF, ARKB, citing enhanced investor protections. Despite previous rejections from the SEC, the firms argue that regulated crypto options can prevent fraud and scams for US investors.