Unchained Daily’s latest newsletter highlights several crypto and financial policy developments, including a proposed post-quantum Bitcoin signature from Blockstream researchers and backing for 49% of the Trump family’s bank holding company by the so-called "spy sheikh." The newsletter also flags a finalized definition of "unsafe or unsound practice" by the OCC and FDIC, alongside plans for Charles Schwab to add Solana, Avalanche, and Chainlink. The post promotes the latest daily roundup and subscription access.