Core engineering and protocols for PQC Bundler Node Architecture.
In the account abstraction ecosystem, bundlers replace miners/validators as the transaction ingestion layer. Bundlers listen to the specialized UserOperation alternative mempool, simulate validation off-chain, package multiple UserOperations into a single bundle, and submit them to the EntryPoint contract via handleOps. The bundler pays the L1 gas upfront and is reimbursed with a profit margin.
Because verifying ML-DSA signatures requires polynomial matrix multiplication, a malicious actor could spam the mempool with invalid signatures to exhaust bundler CPU resources. PQCAA incorporates hardware-accelerated SIMD verification in its mempool ingress pipeline, validating signatures in sub-15ms and maintaining reputation tables that immediately ban malicious peers.