# Design Properties

**Non-Interactivity**: The communication round for exchanging signatures is non-interactive, given the independent signature requirements of P2WSH. This also ensures that the signatures aren't aggregated on a single server. 

**Accountability**: P2WSH is chosen to keep signatories accountable for liveness. If they fail to sign, they get slashed for their bond or eventually get jailed.

**Delayed Withdrawal**: If a client owns 4% of the total reserve supply (Eg. $40M in a $1B reserve), then intuitively, it would take \~4 bitcoin blocks to unlock and process the 100% value of withdrawal request, given the funds are locked in consecutive fragments. 

**Bitcoin Data Availability**: Twilight ensures that the refund transaction is always available for an exit on bitcoin network using inscriptions.