Industry experts discuss Bitcoin sidechain hack and OpenAI intellectual property dispute

A Bitcoin sidechain suffered a $300 million loss due to a consensus bug, with hackers demanding a bounty after returning 85% of the funds. Meanwhile, a dispute has emerged between OpenAI and a mathematician regarding the origin of a Millennium Prize-adjacent proof. Experts also analyzed the release of new frontier models Astra and Fable 5.1, the limitations of data privacy toggles in AI training, and the implications of a recent resignation by an Anthropic researcher.