phase-0

Phase 0 — Setup (once)

1. Key systems

   • Wallet has:
     • spending key
     • viewing key (for decrypting outputs)
   • Sequencer committee has:
     • threshold encryption key shares (for mempool encryption)
     • signing keys (for batch approvals)

2. Rollup state on Solana

   • program stores:
     • state_root
     • nullifier_root
     • batch_index