CCTP
CCTP Bridge
Circle's Cross-Chain Transfer Protocol (CCTP) enables native USDC transfers between Solana and Arbitrum. The strategy uses CCTP for capital deployment and repatriation.
Bridge Architecture
CCTP provides:
Native USDC transfers
No wrapped tokens
Burn and mint mechanism
Attestation service
Outbound Flow (Solana → Arbitrum)
When deploying capital:
Burn USDC on Solana
Get burn attestation
Mint USDC on Arbitrum
Deploy to arbitrage vault
Process characteristics:
~15 minute finality
No slippage
Fixed fee structure
Inbound Flow (Arbitrum → Solana)
When realizing performance:
Withdraw from arbitrage vault
Burn USDC on Arbitrum
Get burn attestation
Mint USDC on Solana
Epoch Batching
Bridge operations are batched per epoch:
Single outbound for all deposits
Single inbound for all redemptions
Reduces transaction costs
Simplifies reconciliation
Batching benefits:
Lower total fees
Reduced operational complexity
Better capital efficiency
Error Handling
Bridge failures are handled through:
Attestation verification
Retry mechanisms
Manual intervention if needed
Epoch-based reconciliation
The epoch system provides natural checkpoints for verifying bridge operations completed successfully.
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