Layer 2: Access Control & Native AA (The Gatekeeper)

Layer 2 acts as the intelligent "Gatekeeper" of the Blockchain. Here, Bullbit executes a digital identity revolution by replacing default authentication logic with a Custom AnteHandler deeply integrated into the protocol.

• Native Multi-Curve Support: BullChain breaks compatibility barriers by simultaneously supporting two cryptographic signature standards at the Native layer:

  • secp256k1: For traditional Crypto wallets and automated trading bots.

  • secp256r1 (NIST P-256): For WebAuthn/Passkey standards. This means BullChain Validators can "understand" and directly verify signatures generated from the Secure Enclave on iPhone/Android without going through any intermediate Smart Contracts, turning personal devices into Hardware Wallets with the highest security level.

• Stateful Verification for High Frequency: BullChain's AnteHandler accesses the SessionStore directly to verify transactions. This process eliminates cumbersome sequential Nonce checks (a bottleneck of Ethereum), allowing Liquidity Providers (LPs) and professional Traders to send batches of parallel orders without worrying about stuck transactions due to Nonce errors.

• Protocol-Level Gas Abstraction: Fee Grant logic is no longer an external application but is Hard-coded into the Blockchain logic. The system automatically identifies valid transactions from user Passkeys and executes a Gas waiver mechanism right at the gateway. For end-users, the concept of "Gas" is completely invisible.