Solana (Anchor Parity)
Achieving ERC-7540-style queue parity on Solana using Anchor programs.
Account Model
- Vault — state, parameters, NAV.
- Queue — pending redemptions; streamed processing.
- Claim — claim tickets (SPL or PDA-authority).
- Config/Oracle — parameters and attested inputs.
Parity with 7540
- Request → Pending → Claim flow mirrors EVM semantics.
- Fixed-cost per-user ops; keeper batching; idempotent checkpoints.
Settlement
- USDC via CCTP.
- Message lanes: choose production-ready bridge; reuse EVM schema.