Protocol
Overview
A first-principles look at how SwapBlok achieves non-custodial, cross-chain trading
SwapBlok is a cross-chain decentralised exchange where the non-custodial guarantee is enforced by cryptography at every layer, not by policy, not by legal terms, and not by the behaviour of any company including SwapBlok itself.
Most DEXes solve custody within a single chain. SwapBlok solves it across four: Ethereum, Solana, Bitcoin, and Tron, connected through a trustless bridge architecture where no single party ever holds enough key material to move funds without the user's explicit co-signature.
The system is designed so that SwapBlok, the bridge provider, the relayer, and any third party are all cryptographically incapable of accessing user funds: at the wallet layer, at the bridge layer, and at the settlement layer simultaneously.
SwapBlok is composed of four protocol layers:
┌──────────────────────────────────────────────────────────┐
│ LAYER 1 — EXTERNAL CHAINS │
│ Ethereum · Solana · Bitcoin · Tron │
│ 2MPC dWallet vaults — user key share + network key share│
└─────────────────────┬────────────────────────────────────┘
│ Merkle proofs via permissionless relayers
┌─────────────────────▼────────────────────────────────────┐
│ LAYER 2 — SB CHAIN (IMMUTABLE LEDGER) │
│ RDPoS Consensus · Wrapped Asset Minting · Bridge Module │
└─────────────────────┬────────────────────────────────────┘
│
┌─────────────────────▼────────────────────────────────────┐
│ LAYER 3 — EXCHANGE ENGINE │
│ AMM (x × y = k) · Order Book DEX · Exchange Router │
└─────────────────────┬────────────────────────────────────┘
│
┌─────────────────────▼────────────────────────────────────┐
│ LAYER 4 — INCENTIVE LAYER │
│ SBT Token · LP Rewards · Witness Rewards · Governance │
└──────────────────────────────────────────────────────────┘All four layers are non-custodial, transparent, and permanently recorded on SB Chain's immutable ledger.