Basant basantzp

⚡ Principal Protocol Engineer & EVM Systems Architect

High-Throughput DeFi Primitives • Cancun EVM Optimization (EIP-1153) • Anti-LVR Uniswap v4 Hooks • Modular Account Abstraction (ERC-4337 / ERC-7579) • ZK Merkle Accumulators • Bitcoin Core Script VM
"In code we trust, on-chain we verify." — Engineering deterministic, gas-optimized, and formally verified blockchain infrastructure from first principles.

🏛️ Flagship Protocol Architectures

Protocol / System	Architecture & Engineering Focus	Rigor & Testing	Live Deployments
v4-volatility-fee-hook	Uniswap v4 Dynamic Volatility Fee Hook Realized tick-variance tracking with exponential moving average decay. Protects liquidity providers against Loss-Versus-Rebalancing (LVR) and toxic MEV arbitrage via automated dynamic swap fee tiers.	8 / 8 Tests Passing Foundry Fuzz Testing (`256 runs`) Bit-packed single-slot storage layout	🌐 Live App 📦 GitHub Repo
100-solidity-projects	Master Protocol Curriculum (100 Contracts) Production-ready EVM architecture across 10 pillars: ERC Standards, AMMs, Lending, ZK Groth16, Cancun EIP-1153 transient storage, Diamond Proxies, DAOs, ERC-7579 AA, and Rollup Settlement.	201 / 201 Tests Passing Foundry Invariant & Unit Fuzzing Cancun `tstore`/`tload` gas-optimized	🌐 Live Curriculum 📦 GitHub Repo
bitcoin-testnet-cpp	High-Performance Bitcoin Core Testnet4 Suite Modern C++17 Bitcoin suite featuring a step-by-step Opcode Script VM evaluator, SegWit (BIP-173) and Taproot (BIP-350) address generator, multithreaded SHA-256 block miner, and raw transaction deserializer.	Zero External Dependencies OpenSSL 3.0+ cryptographic primitives Native C++17 architecture	📦 GitHub Repo
aether-erc4337-paymaster	Enterprise ERC-4337 Account Abstraction Paymaster Production AA gas sponsorship paymaster with EIP-712 cryptographic signature verification, Chainlink oracle ERC-20 multi-token payments, and strict invariant state checks.	Foundry Tested Stateful invariant validation ERC-4337 v0.7 compliant	📦 GitHub Repo
aegis-zk-accumulator	EVM Sparse Merkle Tree Cryptographic Accumulator High-performance Sparse Merkle Tree (SMT) accumulator and vault written in C11 and Solidity for efficient zero-knowledge membership proofs and stateless verification on EVM chains.	Formal Verification C11 native memory performance O(log N) verification complexity	📦 GitHub Repo
local-evm-studio	Foundry Anvil Web Control Center Zero-dependency browser command center for local EVM instances: JSON-RPC console, sandbox state snapshots (`anvil_mine`, `evm_snapshot`), and 1-click MetaMask connector.	Production Deployed Sub-millisecond RPC telemetry Zero cloud dependency	🌐 Live Application 📦 GitHub Repo
degencheck-web3	High-Throughput Multi-Chain Security Engine Sub-second smart contract security scanner and DEX execution companion for Solana, Base, and EVM chains. Real-time honeypot, mint-trap, and LP lock verification.	Production Deployed Real-time GoPlus & RugCheck integration Anti-MEV Telegram bot routing	🌐 Live Application 📦 GitHub Repo

🔬 Protocol Engineering Stack & Mental Models

                           ╔═════════════════════════════════════════════════╗
                           ║      DECENTRALIZED SYSTEMS ARCHITECTURE        ║
                           ╚═════════════════════════════════════════════════╝
                                                      │
         ┌───────────────────┬────────────────────────┴───────────────────────┬───────────────────┐
         ▼                   ▼                                                ▼                   ▼
┌─────────────────┐ ┌─────────────────────────┐              ┌────────────────────────┐ ┌─────────────────┐
│  DeFi & AMMs    │ │   Cancun EVM Low-Level  │              │  Account Abstraction   │ │ Bitcoin Core    │
├─────────────────┤ ├─────────────────────────┤              ├────────────────────────┤ ├─────────────────┤
│• Uniswap v4 Hook│ │• EIP-1153 tstore/tload  │              │• ERC-4337 Bundlers     │ │• Testnet4 Engine│
│• Anti-LVR Curves│ │• Yul Fixed-Point Math   │              │• ERC-7579 Modular AA   │ │• Script VM Eval │
│• Curve Invariant│ │• Custom Memory Allocator│              │• EIP-712 Paymasters    │ │• Taproot BIP-350│
│• Morpho Blue Mkts││• Namespaced Storage     │              │• Session Key Guards    │ │• SegWit BIP-173 │
└─────────────────┘ └─────────────────────────┘              └────────────────────────┘ └─────────────────┘

1. Advanced EVM & Cancun Optimization

Transient Storage (EIP-1153): Single-transaction reentrancy locks reducing overhead from 2,100 gas (sstore) to 100 gas (tstore), intra-tx fee accumulators, and zero-storage transient routers.
Yul Inline Assembly: Custom memory bump allocators bypassing standard Solidity memory expansion penalties, high-performance function selector jump tables, and bitwise fixed-point WAD ($10^{18}$) / RAY ($10^{27}$) arithmetic.
Storage Engineering: Multi-variable bit-packing into single 32-byte slots and ERC-7201 formulaic namespaced storage collision detectors.

2. High-Frequency DeFi & Liquidity Primitives

Anti-LVR Mechanics: Continuous tick displacement tracking and exponential half-life volatility decay curves dynamically adjusting pool fee tiers to capture toxic flow as LP yields.
Concentrated & Multi-Asset AMMs: Uniswap v3 $Q64.96$ tick ranges, Balancer generalized geometric invariant pools ($\prod B_i^{w_i} = k$), and Curve Newton-Raphson amplification pools.
Lending & Margin Markets: Overcollateralized CDP stablecoin minters, isolated peer-to-peer agreements, Dutch auction liquidation engines, and multi-collateral margin baskets.

3. Account Abstraction & Applied Cryptography

ERC-4337 & ERC-7579: Modular smart accounts, gas sponsorship verifying paymasters, scoped temporary session key plugins, and pre-execution spending guardian policy hooks.
Biometric & Off-Chain Verification: WebAuthn / Passkey P-256 (secp256r1) signature verification, EIP-712 structured meta-transactions, and blind signature anonymous ballot schemes.
Zero-Knowledge & Accumulators: Groth16 zk-SNARK pairing checks on the alt_bn128 curve (0x08 precompile), and Sparse Merkle Tree (SMT) accumulator architectures.

4. Bitcoin Core & Script VM

Opcode Execution Engine: Deterministic stack machine implementing OP_DUP, OP_HASH160, OP_EQUALVERIFY, OP_CHECKSIG, and OP_CHECKMULTISIG.
Address Encodings: Native SegWit (Bech32, BIP-173) and Taproot (Bech32m, BIP-350) key derivation and signing.

🛠️ Tooling & Infrastructure

📊 Verification & Protocol Rigor

All protocol repositories enforce:

Strict Invariant Property Testing: State machine fuzzing via Foundry (--runs 256 to 10,000+).
Cancun EVM Compatibility: Tested and verified against Ethereum Cancun hardfork opcodes (evm_version = "cancun").
Formal Code Formatting: Standardized via forge fmt.
Zero External Baggage: Self-contained, custom-error driven contracts designed for gas minimization and audit readiness.

_{"In code we trust, on-chain we verify." • Basant Pokhrel — Open Source Protocol Engineering}

🌐 Active Open-Source Protocol Contributions

Ecosystem & Target	Scope & Architecture	Pull Request
Mastering Ethereum	Core Protocol Literature & Standards Addressed maintainer review feedback from `@alessandromazza98` on Chapter 2 (Ethereum Basics) Further Reading.	🚀 PR #1332
Awesome Solidity	Curated EVM Directory (7,000+ ⭐) Added `100-solidity-projects` to Resources > Examples > Educational with full invariant fuzzing coverage.	🚀 PR #226
Awesome Uniswap Hooks	Uniswap v4 Dynamic Hook Ecosystem Contributed `v4-volatility-fee-hook` (Anti-LVR & toxic MEV mitigation) to Community Examples.	🚀 PR #99
Awesome Account Abstraction	ERC-4337 Standards Index (1,000+ ⭐) Contributed `aether-erc4337-paymaster` (Enterprise EntryPoint v0.7 Paymaster with Chainlink settlement) to Code > Paymasters.	🚀 PR #1190
Awesome Foundry	Foundry Framework Registry (1,100+ ⭐) Added `100-solidity-projects` (201/201 Foundry unit & invariant tests on Cancun EVM) to Projects Using Foundry.	🚀 PR #58

Navigation Menu