# zkSync Vault as Trust Anchor

The vault embodies the following invariants:

1. **Accounting is local and deterministic.**\
   No external system can alter vault state.
2. **Execution is external and replaceable.**\
   Strategies can change chains without changing user guarantees.
3. **NAV correctness is mandatory.**\
   Invalid data is ignored automatically.
4. **Share supply is immutable except through vault logic.**\
   No strategy or bridge can mint or burn shares.
5. **Cross-domain behavior is abstracted away.**\
   Users interface with a single vault regardless of multi-chain execution.

These invariants differentiate Multistake from common yield aggregators and make cross-chain execution economically safe.


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