Technical Architecture¶
Implementation blueprint for whale trading infrastructure on Solana
Core Architecture Principles¶
Performance First¶
- Target Latency: <400ms from intent to execution confirmation
- Throughput: 1,000+ orders/second sustained
- Availability: 99.9% uptime with graceful degradation
- Scalability: Handle $1B+ daily volume from day one
Security by Design¶
- Multi-signature governance: 5-of-9 for critical operations
- Formal verification: All critical paths mathematically proven
- Zero-trust architecture: Every component independently verified
- Emergency controls: Circuit breakers at every layer
Privacy Native¶
- ZK-first design: Privacy built into core protocols, not added on
- Mixing by default: All transactions use privacy pools when possible
- Selective disclosure: Compliance without sacrificing privacy
- Anonymity preservation: Maintain whale trading patterns private
System Architecture Overview¶
┌─────────────────────────────────────────────────────────────┐
│ Client Interface Layer │
│ ┌─────────────┐ ┌──────────────┐ ┌─────────────────────┐ │
│ │Professional │ │ Mobile Apps │ │ API Gateway │ │
│ │ Trading │ │ │ │ │ │
│ │ Interface │ │ │ │ - Rate limiting │ │
│ └─────────────┘ └──────────────┘ │ - Authentication │ │
│ │ - Request routing │ │
│ └─────────────────────┘ │
├─────────────────────────────────────────────────────────────┤
│ Service Layer │
│ ┌─────────────┐ ┌──────────────┐ ┌─────────────────────┐ │
│ │ Order │ │ Intent │ │ Privacy │ │
│ │ Management │ │ Processing │ │ Services │ │
│ │ │ │ │ │ │ │
│ │ - Validation│ │ - Strategy │ │ - ZK Proof Gen │ │
│ │ - Routing │ │ - Matching │ │ - Mixing Pools │ │
│ │ - Tracking │ │ - Execution │ │ - Stealth Routing │ │
│ └─────────────┘ └──────────────┘ └─────────────────────┘ │
├─────────────────────────────────────────────────────────────┤
│ Execution Engine Layer │
│ ┌─────────────┐ ┌──────────────┐ ┌─────────────────────┐ │
│ │ TWAP │ │ VWAP │ │ Smart Routing │ │
│ │ Executor │ │ Executor │ │ Engine │ │
│ │ │ │ │ │ │ │
│ │ - Time │ │ - Volume │ │ - Liquidity Agg │ │
│ │ Splitting │ │ Analysis │ │ - Venue Selection │ │
│ │ - Random │ │ - Market │ │ - Route Optimization│ │
│ │ Timing │ │ Adaptation │ │ - Execution Quality │ │
│ └─────────────┘ └──────────────┘ └─────────────────────┘ │
├─────────────────────────────────────────────────────────────┤
│ Blockchain Layer (Solana) │
│ ┌─────────────┐ ┌──────────────┐ ┌─────────────────────┐ │
│ │ OTC Trading │ │ Algorithm │ │ Privacy Pool │ │
│ │ Program │ │ Execution │ │ Program │ │
│ │ │ │ Program │ │ │ │
│ │ - Escrows │ │ - TWAP/VWAP │ │ - ZK Verification │ │
│ │ - RFQ │ │ - Intent │ │ - Nullifier Mgmt │ │
│ │ - Dark Pool │ │ Solving │ │ - Commitment Trees │ │
│ │ - Settlement│ │ - MEV Shield │ │ - Mixing Logic │ │
│ └─────────────┘ └──────────────┘ └─────────────────────┘ │
├─────────────────────────────────────────────────────────────┤
│ Infrastructure Layer │
│ ┌─────────────┐ ┌──────────────┐ ┌─────────────────────┐ │
│ │ Oracle │ │ Cross-Chain │ │ Data & Storage │ │
│ │ Aggregator │ │ Bridges │ │ Services │ │
│ │ │ │ │ │ │ │
│ │ - Pyth │ │ - Wormhole │ │ - Arweave (history) │ │
│ │ - Switchbd │ │ - LayerZero │ │ - IPFS (metadata) │ │
│ │ - Chainlink │ │ - Hyperlane │ │ - Redis (cache) │ │
│ │ - Custom │ │ - Axelar │ │ - Postgres (state) │ │
│ └─────────────┘ └──────────────┘ └─────────────────────┘ │
└─────────────────────────────────────────────────────────────┘
Solana Program Architecture¶
Program Dependencies and Communication¶
┌─ Main Controller Program (moby-controller) ────────────────┐
│ │
│ Controls and coordinates all operations │
│ ├─ Program upgrades and governance │
│ ├─ Emergency pause mechanisms │
│ ├─ Cross-program invocation routing │
│ └─ Global state management │
│ │
├─ CPI Calls ───────────────────────────────────────────────┤
│ │
│ ┌─ OTC Trading Program ──┐ ┌─ Algorithm Execution ──────┐ │
│ │ (moby-otc) │ │ (moby-executor) │ │
│ │ │ │ │ │
│ │ • Fixed price orders │ │ • TWAP implementation │ │
│ │ • RFQ system │ │ • VWAP implementation │ │
│ │ • Dark pools │ │ • Intent processing │ │
│ │ • Escrow management │ │ • Solver competition │ │
│ │ • Settlement logic │ │ • MEV protection │ │
│ └────────────────────────┘ └────────────────────────────┘ │
│ │
│ ┌─ Privacy Program ───────┐ ┌─ Oracle Aggregator ────────┐ │
│ │ (moby-privacy) │ │ (moby-oracle) │ │
│ │ │ │ │ │
│ │ • ZK proof verification │ │ • Multi-oracle aggregation │ │
│ │ • Commitment trees │ │ • Price feed validation │ │
│ │ • Nullifier management │ │ • Staleness checking │ │
│ │ • Privacy pools │ │ • Manipulation detection │ │
│ │ • Mixing protocols │ │ • Emergency price feeds │ │
│ └─────────────────────────┘ └────────────────────────────┘ │
└────────────────────────────────────────────────────────────┘
External Program Integration:
├─ DEX Programs: Raydium, Orca, Phoenix, Serum
├─ Bridge Programs: Wormhole, Allbridge, Portal
├─ Oracle Programs: Pyth, Switchboard, Chainlink
└─ Lending Programs: Solend, Mango, Marginfi
Critical Account Structures¶
Global State Accounts¶
// Main system state
#[account]
#[derive(InitSpace)]
pub struct GlobalState {
pub authority: Pubkey, // 32 bytes
pub paused: bool, // 1 byte
pub emergency_mode: bool, // 1 byte
pub total_volume_traded: u64, // 8 bytes
pub total_fees_collected: u64, // 8 bytes
pub supported_tokens: Vec<Pubkey>, // 4 + 32*n bytes
pub fee_collector: Pubkey, // 32 bytes
pub upgrade_authority: Pubkey, // 32 bytes
pub created_at: i64, // 8 bytes
pub last_updated: i64, // 8 bytes
}
// Program configuration
#[account]
#[derive(InitSpace)]
pub struct ProgramConfig {
pub max_compute_units: u32, // 4 bytes
pub priority_fee_multiplier: u16, // 2 bytes
pub slippage_tolerance_bps: u16, // 2 bytes
pub max_accounts_per_tx: u8, // 1 byte
pub risk_parameters: RiskParams, // Variable size
pub fee_structure: FeeStructure, // Variable size
}
OTC Trading Accounts¶
#[account]
#[derive(InitSpace)]
pub struct OTCOrder {
pub order_id: [u8; 32], // Unique order identifier
pub maker: Pubkey, // Order creator
pub taker: Option<Pubkey>, // Order acceptor (if filled)
pub token_mint_a: Pubkey, // Sell token
pub token_mint_b: Pubkey, // Buy token
pub amount_a: u64, // Sell amount
pub amount_b: u64, // Buy amount
pub filled_amount_a: u64, // Amount filled (sell side)
pub filled_amount_b: u64, // Amount filled (buy side)
pub min_fill_amount: u64, // Minimum partial fill
pub expiry: i64, // Expiration timestamp
pub order_type: OTCOrderType, // Fixed, RFQ, Dark
pub privacy_level: PrivacyLevel, // Public, Stealth, Anonymous
pub status: OrderStatus, // Created, Partial, Filled, Cancelled
pub created_at: i64,
pub updated_at: i64,
pub fees_paid: u64,
pub slippage_tolerance: u16, // Basis points
pub maker_fee_bps: u16,
pub taker_fee_bps: u16,
}
#[account]
#[derive(InitSpace)]
pub struct OTCEscrow {
pub order_id: [u8; 32],
pub escrow_authority: Pubkey,
pub token_account_a: Pubkey, // Escrow token account A
pub token_account_b: Pubkey, // Escrow token account B
pub deposited_amount_a: u64,
pub deposited_amount_b: u64,
pub release_conditions: Vec<ReleaseCondition>,
pub settlement_instructions: Vec<SettlementInstruction>,
}
Algorithm Execution Accounts¶
#[account]
#[derive(InitSpace)]
pub struct TWAPOrder {
pub order_id: [u8; 32],
pub trader: Pubkey,
pub token_in: Pubkey,
pub token_out: Pubkey,
pub total_amount_in: u64,
pub executed_amount_in: u64,
pub min_amount_out: u64,
pub received_amount_out: u64,
pub time_window_seconds: i64,
pub num_intervals: u32,
pub current_interval: u32,
pub randomness_factor: u8, // 0-100, timing randomization
pub max_slippage_bps: u16,
pub next_execution_time: i64,
pub interval_amounts: Vec<u64>, // Pre-calculated execution amounts
pub venue_preferences: Vec<VenueWeight>,
pub execution_history: Vec<ExecutionRecord>,
pub status: AlgorithmStatus, // Active, Paused, Completed, Cancelled
pub privacy_enabled: bool,
pub created_at: i64,
pub updated_at: i64,
}
#[account]
#[derive(InitSpace)]
pub struct VWAPOrder {
pub order_id: [u8; 32],
pub trader: Pubkey,
pub token_pair: TokenPair,
pub total_amount: u64,
pub executed_amount: u64,
pub target_participation_bps: u16, // Basis points of market volume
pub volume_curve_type: VolumeCurveType,
pub time_horizon_hours: u8,
pub rebalance_frequency_minutes: u16,
pub market_conditions: MarketConditions,
pub volume_forecast: Vec<VolumeDataPoint>,
pub execution_schedule: Vec<VWAPInterval>,
pub adaptive_parameters: AdaptiveParams,
}
Privacy System Accounts¶
#[account]
#[derive(InitSpace)]
pub struct PrivacyPool {
pub pool_id: [u8; 32],
pub merkle_tree_root: [u8; 32],
pub merkle_tree_height: u8, // Usually 20 for ~1M deposits
pub next_leaf_index: u32,
pub commitment_scheme: CommitmentScheme,
pub zk_circuit_id: [u8; 32],
pub verification_key_hash: [u8; 32],
pub nullifier_hashes: Vec<[u8; 32]>, // Spent nullifiers
pub min_deposit_amount: u64,
pub deposit_fee_bps: u16,
pub withdrawal_delay_seconds: i64,
pub anonymity_set_size: u32, // Current participants
pub total_deposited: u64,
pub total_withdrawn: u64,
pub pool_statistics: PoolStatistics,
pub compliance_module: Option<ComplianceModule>,
}
#[account(zero_copy)] // Large account, use zero-copy
pub struct CommitmentTree {
pub tree_height: u8,
pub filled_subtrees: [u8; 32; 20], // Merkle tree subtree hashes
pub zeros: [u8; 32; 20], // Zero hashes at each level
pub current_root_index: u8,
pub next_index: u32,
pub roots: [[u8; 32]; 100], // Ring buffer of recent roots
}
#[account]
#[derive(InitSpace)]
pub struct PrivateTransaction {
pub tx_id: [u8; 32],
pub nullifier_hash: [u8; 32],
pub commitment: [u8; 32],
pub encrypted_amount: Vec<u8>, // ElGamal encrypted amount
pub encrypted_memo: Vec<u8>, // Optional encrypted memo
pub zk_proof: Vec<u8>, // Serialized proof
pub public_amount: i64, // Positive for deposits, negative for withdrawals
pub fee: u64,
pub created_at: i64,
}
Data Flow Architecture¶
Order Processing Flow¶
graph TD
A[User Intent] --> B[Order Validation]
B --> C{Order Type}
C -->|OTC| D[Escrow Creation]
C -->|TWAP/VWAP| E[Algorithm Engine]
C -->|Intent| F[Solver Network]
D --> G[Settlement]
E --> H[Execution Queue]
F --> I[Solution Selection]
H --> J[DEX Routing]
I --> J
G --> K[State Update]
J --> K
Privacy Flow¶
graph TD
A[Private Intent] --> B[ZK Proof Generation]
B --> C[Commitment Creation]
C --> D[Privacy Pool Deposit]
D --> E[Execution via Mixer]
E --> F[Nullifier Generation]
F --> G[Settlement]
Account Structure¶
Core Account Types¶
// Main Controller State
pub struct ControllerState {
pub authority: Pubkey,
pub paused: bool,
pub fee_collector: Pubkey,
pub supported_programs: Vec<Pubkey>,
pub emergency_contacts: Vec<Pubkey>,
}
// OTC Escrow Account
pub struct OTCEscrow {
pub seller: Pubkey,
pub buyer: Pubkey,
pub token_mint_a: Pubkey,
pub token_mint_b: Pubkey,
pub amount_a: u64,
pub amount_b: u64,
pub expiry: i64,
pub partial_fill_allowed: bool,
pub min_fill_size: u64,
pub escrow_state: EscrowState,
pub privacy_mode: PrivacyLevel,
}
// TWAP Order State
pub struct TWAPOrder {
pub trader: Pubkey,
pub token_in: Pubkey,
pub token_out: Pubkey,
pub total_amount: u64,
pub executed_amount: u64,
pub time_window: i64,
pub num_splits: u32,
pub current_split: u32,
pub randomness_factor: u8,
pub price_deviation_limit: u16,
pub min_output_per_interval: u64,
}
// Privacy Pool Account
pub struct PrivacyPool {
pub pool_id: Pubkey,
pub anonymity_set_size: u32,
pub min_deposit: u64,
pub withdrawal_delay: i64,
pub merkle_tree_root: [u8; 32],
pub compliance_module: Option<ComplianceHook>,
}
Cross-Program Integration¶
Supported DEX Protocols¶
- Serum: Central limit order book
- Raydium: Automated market maker
- Orca: Concentrated liquidity
- Phoenix: Next-gen order book
- Lifinity: Proactive market maker
Integration Pattern¶
pub enum DexIntegration {
DirectCPI {
program_id: Pubkey,
instruction_data: Vec<u8>,
},
AggregatorRoute {
jupiter_program: Pubkey,
route_data: Vec<u8>,
},
CustomAdapter {
adapter_program: Pubkey,
execution_params: Vec<u8>,
},
}
Compute & Storage Optimization¶
Compute Budget Management¶
- Max Compute Units: 1,400,000 per transaction
- Priority Fee: Dynamic based on network congestion
- Account Pre-allocation: Reduces runtime compute costs
Storage Strategy¶
- On-chain: Critical state, active orders, proofs
- Arweave: Historical data, analytics
- IPFS: Metadata, documentation
- Shadow Drive: High-frequency cache
Scalability Considerations¶
Horizontal Scaling¶
- Multiple program deployments for load distribution
- Account sharding for parallel processing
- Regional node optimization
Vertical Optimization¶
- Instruction packing
- Account compression
- State rent optimization
- Compute unit efficiency
Security Architecture¶
Multi-layer Security¶
- Program Level: Input validation, access controls
- Account Level: Owner verification, state consistency
- Network Level: Oracle validation, MEV protection
- Economic Level: Stake requirements, slashing conditions
Emergency Procedures¶
- Circuit Breaker: Immediate pause capability
- Upgrade Path: Controlled migration procedures
- Recovery Mode: State reconstruction capabilities
- Governance Override: Multi-sig emergency controls
Cross-Chain Architecture¶
Bridge Integration¶
pub struct CrossChainOrder {
pub source_chain: ChainId,
pub destination_chain: ChainId,
pub wormhole_message_hash: [u8; 32],
pub layerzero_packet_id: Option<u64>,
pub bridge_provider: BridgeProvider,
pub timeout: i64,
pub retry_params: RetryConfig,
}
Supported Bridges¶
- Wormhole: Primary cross-chain messaging
- LayerZero: Alternative messaging protocol
- Custom Bridges: Protocol-specific implementations
Monitoring & Observability¶
Metrics Collection¶
- Transaction success rates
- Execution latency percentiles
- Slippage measurements
- Privacy pool entropy
- Cross-chain settlement times
Alerting System¶
- Performance degradation alerts
- Security incident notifications
- Liquidity shortage warnings
- Oracle deviation alerts
Future Architecture Evolution¶
Planned Enhancements¶
- Parallel Execution: Transaction parallelization
- State Compression: Merkle tree state management
- Advanced Oracles: Custom oracle networks
- AI Integration: Machine learning for execution optimization