SolvBTC enables BTC-backed asset operations across Solana and Stellar.
57Blocks led smart contract, backend, and frontend development to build a secure vault system supporting multi-signature cross-chain transactions.
What 57Blocks Delivered
Smart Contracts: Implemented Solana - Stellar vaults with dual-signature verification (Ed25519 + Secp256k1) and EIP-712-style domain separation to prevent replay attacks. Fixed Stellar require_auth bypass risks in multi-contract calls.
Backend: Built cross-chain signature handler, snapshot bot for token holders, and multisig coordination for upgrades and transactions.
Frontend: Delivered full dApp with wallet integration, ledger management, and cross-chain UI workflows.
Tech Stack: Rust, Anchor, Soroban, TypeScript, Solana/web3.js, Stellar-SDK, Next.js, AWS, PostgreSQL.
Business Impact
Enabled seamless Solana - Stellar interoperability with secure authorization and audit trails.
Simplified cross-chain transaction management and user operations.
Current Status
57Blocks continues supporting SolvBTC’s mainnet deployment and audit preparation.
