Abstract

SwapBlok is a cross-chain, non-custodial decentralised exchange (DEX) built on SB Chain, an immutable ledger forked from BitShares and extended with Randomised Delegated Proof of Stake (RDPoS) consensus. SwapBlok enables trustless swaps between Ethereum, Solana, Bitcoin, and Tron through a cryptographic bridge architecture powered by two-party multi-party computation (2MPC) dWallets provided by ika.xyz on the Sui network.

The SwapBlok Wallet, built on dfns.io's non-delegated signing architecture, gives users a hardware-secured, seed-phrase-free interface to SB Chain. No key material is held by SwapBlok or dfns.io in a form that permits unilateral signing. User sovereignty over private keys is enforced by cryptography, not policy.

The system is designed so that no party, including SwapBlok itself, can access, freeze, reverse, or redirect user funds at any point in the transaction lifecycle. Non-custody is enforced mathematically at both the wallet layer (dfns.io MPC-TSS) and the bridge layer (ika.xyz 2MPC). Every transaction is permanently and irreversibly recorded on SB Chain's immutable ledger.

SBT, the native utility token of SB Chain, has a fixed total supply of one billion tokens distributed across nine allocations: 35% to team, contributors and foundation (vested), 20% to witness block rewards, 10% to a pre-TGE community airdrop, and 20.5% to liquidity provider and staking rewards released over five years. SBT powers witness rewards, on-chain governance, and a fee-funded buyback-and-burn programme that links token value directly to exchange volume. A transparent Foundation governance roadmap commits to full community governance within four years of mainnet launch.