A reference architecture for peer-to-peer digital-asset exchange using configurable smart contracts, liquidity, price inputs, wallets, and optional cross-chain components.
Reference blueprint
Make the trading flow and its control model inspectable.
A reference architecture for peer-to-peer digital-asset exchange using configurable smart contracts, liquidity, price inputs, wallets, and optional cross-chain components.
Reference architectureNot a deployed serviceValidation required
Reduce reliance on selected intermediaries without hiding the custody, liquidity, oracle, governance, bridge, and market risks that remain.
Illustrative architecture. Production suitability must be established for the target environment.
Operating flow
Follow the decision path, not a feature list.
Each stage needs a named actor, an authoritative input, a control decision, and evidence of the resulting state.
Authorise
An eligible wallet signs an order or swap request.
Evaluate
Policy, balance, allowance, price, and slippage checks run.
Execute
Configured contract or liquidity-pool logic processes the trade.
Settle
Assets and fees move according to the selected network model.
Observe
Events feed monitoring, reconciliation, and user-facing records.
Actors
Accountability attaches to roles.
The blueprint coordinates participants; it does not transfer every participant’s obligations to the technology provider.
Trader
Authorises an order or swap from an eligible wallet
Liquidity provider
Supplies assets under the selected market model
Protocol operator
Governs contracts, fees, upgrades, and exceptions
Oracle or bridge provider
Supplies external price or cross-chain dependencies
Risk and oversight
Defines eligibility, monitoring, and response controls
Controlled workflowRoles connect through explicit permissions, approvals, and evidence.
Controlled boundary
Be precise about what the architecture can prove.
A recorded event can be inspectable and tamper-evident while its source, legal effect, market outcome, or physical truth remains externally governed.
What the blueprint can govern
- Documented contract, fee, and liquidity-pool rules
- Permissions, wallet interfaces, and administrator powers
- In-scope execution records and monitoring events
- Configured price, slippage, and optional bridge policies
What the blueprint does not establish
- Wallet custody and recovery unless separately included
- Liquidity depth, market price, spreads, and impermanent loss
- Oracle, bridge, and underlying-network security
- User eligibility, market access, and regulatory treatment
Design inputs
Name the assumptions and dependencies before selecting components.
A
Before design
Assumptions to make explicit
- Supported assets, markets, wallets, and jurisdictions are approved.
- Custody, signing, recovery, and administrator models are documented.
- Price sources and failure policies are selected and monitored.
- Liquidity and fee behaviour is modelled for expected conditions.
D
Across the system
Dependencies to diligence
- Blockchain network and execution contracts
- Wallet and signing infrastructure
- Liquidity providers or automated-market-maker pools
- Price oracles and monitoring
- Optional bridges and cross-chain messaging
Diligence path
Turn failure modes into validation gates.
The target design should not proceed on architecture diagrams alone. Each material risk needs an owner, test, evidence source, and acceptance decision.
Risk map
Smart-contract exploit or unsafe upgrade
Price manipulation, ordering effects, or excessive slippage
Liquidity loss or unavailable market depth
Bridge, oracle, or network failure
Administrator abuse, ineligible access, or inadequate redress
Validation gates
- 01
Complete contract audit, threat modelling, and upgrade review.
- 02
Simulate low liquidity, volatility, slippage, and ordering scenarios.
- 03
Test oracle, bridge, sequencer, and network failure behaviour.
- 04
Verify custody, administrator-key, monitoring, and response controls.
- 05
Obtain asset, market-structure, legal, and jurisdictional review.
Reference architecture is not production approval.
The blueprint does not certify a product, validate source data, establish legal or regulatory treatment, or guarantee security, interoperability, performance, availability, cost, liquidity, or adoption.
Validate the blueprint
Test the decentralised exchange operating model against a real environment.
Use a workshop to map roles, source systems, controls, failure modes, evidence, and open decisions. Any production scope follows separate technical, legal, and commercial review.