The Litterbox is the Jupiter Strategic Reserve Trust which stewards and maintains a treasury for the long-term benefit of the Jupiter ecosystem. 50% of Jupiter's onchain revenue is sent to the Litterbox Trust, which has the mandate to accumulate $JUP.
The Litterbox Trust will likely be used by the Jupiverse stakeholders (including the Jupiter DAO) to accelerate the adoption of Jupiter products, growth of the Jupiter community, and proliferation of Jupiter ideas.
You can follow on Twitter for daily updates on the Litterbox Trust here, or see the Trust onchain here.