QuantumDEX Whitepaper

Abstract

QuantumDEX is the native decentralised exchange of the ThiChain Layer 1 blockchain — a quantum-safe, dharmic-ethics-embedded proof-of-karma blockchain. Unlike existing DEXs that treat all users identically, QuantumDEX introduces karma-adjusted trading: fees, liquidity incentives, and governance weight are dynamically computed from each participant's on-chain karma score, creating an ecosystem that rewards constructive, non-harmful behaviour.

QuantumDEX combines an automated market maker (AMM) with a perpetuals engine, a cross-chain bridge with ML-DSA-65 (NIST FIPS 204) post-quantum signatures, and governance via veQBIT vote-escrow — all governed by the Five Yamas ethical framework.

1. Background

1.1 The Problem with Existing DEXs

Current decentralised exchanges operate on purely financial logic: fees are flat, liquidity mining rewards short-term capital, and governance is dominated by large token holders. This produces:

• Mercenary liquidity — capital leaves immediately when incentives end
• Governance plutocracy — whale votes override community consensus
• Quantum vulnerability — ECDSA signatures are broken by quantum computers, threatening all existing DEX state by approximately 2030
• Ethics-blind execution — protocols cannot distinguish predatory from constructive behaviour

1.2 ThiChain as Foundation

ThiChain L1 provides three capabilities unavailable on any other chain:

• Proof of Karma consensus — validator selection weight = karma × stake, making validator behaviour consequential
• ML-DSA-65 cryptography — NIST FIPS 204 post-quantum signatures natively at the protocol layer
• Dharmic Validator precompile (0x0423) — on-chain ethical validation of contract operations against the 5 Yamas

2. Architecture

2.1 ThiChain Integration Layer

All QuantumDEX contracts interact with ThiChain-native precompiles:

3. Karma-Adjusted AMM

3.1 Fee Model

Standard AMMs charge flat fees. QuantumDEX charges fees inversely proportional to karma score:

3.2 x·y = k with Karma Modifier

The invariant is the standard constant product formula. Karma modifies the effective fee component f extracted before the invariant check, incentivising long-term positive-sum behaviour rather than pure arbitrage extraction.

3.3 TWAP Oracle

Price feeds use time-weighted average prices accumulated in QuantumPair._update(). Perpetuals mark prices are sourced from IQuantumTWAPOracle.getMarkPrice() — not spot price — to prevent oracle manipulation attacks.

4. Perpetuals Engine

QuantumPerps supports up to 20× leverage on supported pairs. Liquidations are capped at MAX_LIQUIDATION_BPS = 5000 (50% of position) to honour the Ahimsa principle — protecting counterparties from catastrophic loss.

5. Tokenomics

6. Governance

Protocol upgrades, fee parameter changes, and gauge weights are controlled by veQBIT holders via QuantumGovernor.sol. All passed proposals execute through a 48-hour TimelockController — honouring the Aparigraha principle of non-hasty action.

The Six Sages Council (ThiChain-native) provides a non-binding advisory layer for proposals with significant dharmic implications.

7. Security

• 1,827+ passing tests (Hardhat + Vitest), 0 failures
• Reentrancy guards on all 8+ entry points in QuantumRouter
• ML-DSA-65 post-quantum signatures on bridge (3,309-byte signatures)
• Internal self-audit engine: 96.2/100 overall score
• External security audit: planned post-testnet (Q3 2026)

See the Security page and Bug Bounty programme for details.

8. Roadmap