Zone structure
Admission contract
Defines who can transact; anchored to a KYB decision from the operator.
Private state tree
Balances and transactions committed as opaque commitments; only Zone participants can resolve.
Bridge
Value enters and leaves through public stablecoin issuance; enforces admission and AML controls.
Three-step flow
1
Deposit
rem.zone.deposit() moves funds from the public rail into the Zone. Sender and amount public; recipient and intent stay in Zone.2
Transact privately
rem.zone.transfer() — transfers encrypted; external observers see nothing.3
Withdraw
rem.zone.withdraw() — uses cryptographic commitments; REM cannot block legitimate exits.Capabilities
- Encrypted intra-zone transactions — opaque to everyone except Zone participants and the operator
- Non-custodial — REM can view for compliance but cannot move, freeze, or confiscate
- EVM-compatible — existing Solidity, wallets, and tooling work unchanged
- TIP-403 compliance — policies defined on the public rail replicate to the Zone automatically
- Mainnet-interoperable — withdraw to the public rail anytime; liquidity pools unified
- Multi-token — supports any TIP-20 token (stablecoins, tokenised assets) across multiple zones
Trust model
Use cases
Corporate payroll
Pay staff in stablecoins without leaking salaries to the public chain.
Treasury management
Move balances between entities and counterparties without revealing positions.
Intercompany B2B settlement
Settle at scale across subsidiaries, with policy enforcement and unified reporting.
Institutional flows
Private settlement layer for funds, asset managers, and tokenised-asset issuers where positions and counterparties must stay confidential.
Quickstart
Custom solutions
Settlement Zones are not a self-serve product. Every zone is a designed deployment — REM works with you on admission, governance, bridge integration, and operator tooling.Zone design
Topology, participant model, governance, and admission rules tailored to the use case (payroll, treasury, B2B settlement, institutional flows).
Admission contracts
Custom KYB and access logic — including multi-operator setups, tiered participants, and revocation flows.
Bridge integration
Connect Zone liquidity to your existing treasury, core banking, or other Settlement Zones — including circuit breakers and rate limits.
Operator tooling
Compliance dashboards, supervised viewing, regulator access, sequencer monitoring, and incident playbooks.
Commission a Zone
Tell us the participants, the flows, and the regulator. We’ll come back with a Zone design and operating proposal.

