Executing trades and finalizing market-making yield directly on Bitcoin L1 without custodial risk.
Bitcoin Layer 1 settlement provides the cryptographic and consensus foundation for all Nexus operations. The protocol leverages Bitcoin primitives to achieve trustless multi-party coordination without introducing bridging or wrapped-asset security assumptions.
Nexus builds upon Bitcoin's fundamental cryptographic mechanisms:
UTXO Model: Every transaction output represents verifiable ownership through cryptographic signatures, enabling precise tracking of asset states and ownership transfers.
Multi-Signature Scripts: Native Bitcoin functionality requiring multiple parties for spending authorization, eliminating single points of control.
PSBT Standard: As detailed in the PSBT Engine, this format secures coordination across multiple parties before any transaction is broadcast.
DotSwap Nexus achieves cryptographic trustlessness through the systematic elimination of trusted third parties in the settlement layer.
Asset Custody
Funds remain in user-controlled UTXOs until atomic execution
Users verify ownership through private key control
Transaction Execution
All operations are embedded in verifiable Bitcoin transactions
Complete blockchain transparency and auditability
Settlement Finality
Bitcoin consensus provides irreversible confirmation
Standard block explorer verification
Because L1 Settlement uses pure Bitcoin:
No Smart Contract Risk: Execution relies on core Bitcoin script execution, avoiding Turing-complete vulnerabilities.
No Bridge Risk: Direct Bitcoin Layer 1 settlement entirely eliminates cross-chain dependencies.
No Upgrade Risk: Protocol changes require explicit user adoption of new UTXO formats rather than forced administrative updates.
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