SD HB1155

Adds Bitcoin to the list of authorized investments for South Dakota state public moneys, amending § 4-5-26

Caps Bitcoin investments at 10% of total state moneys made available for investment

Requires Bitcoin holdings to be stored through one of three methods: directly by the State Investment Council using a secure custody solution, through a qualified custodian, or via SEC-approved exchange-traded products

Defines Bitcoin specifically as the digital asset native to the blockchain network originating from the January 3, 2009 genesis block with the greatest cumulative proof of work

Mandates detailed security requirements for custody solutions including exclusive private key control, encrypted hardware storage, geographically diverse data centers, multi-party governance, and regular security audits