protocol identification
two sourcesIdentification — Solstice Finance. Name: Solstice Finance / Solstice Labs. Website: solstice.finance; documentation is linked from the Solstice site, with the public whitepaper serving as the principal technical document. Category: Solana-native synthetic stablecoin, basis-trading/yield protocol, and YieldVault framework.
Dates and deployment. Solstice Labs was announced on September 20, 2024; the public USX/YieldVault launch occurred on September 30, 2025. Chain: Solana only (100% of listed TVL). Native/governance token: SLX.
Address set. Candidate addresses reported by two independent web sources are: USX mint 6FrrzDk5mQARGc1TDYoyVnSyRdds1t4PbtohCD6p3tgG; eUSX mint 3ThdFZQKM6kRyVGLG48kaPg5TRMhYMKY1iCRa9xop1WC; USX program USXyiSTsPEWz55pSK7sZoUL79ntoVGQbaTDT57tH6bx; YieldVault program eUSXyKoZ6aGejYVbnp3wtWQ1E8zuokLAJPecPxxtgG3; SLX mint SLXdx4BUt2v9uJQNzWqSfzTJ9UKLUDsvxHFMEEdrfgq. Required Dune cross-check is unavailable in this run; therefore the requested >=2-source cross-check including Dune and Dune-based on-chain verification are: Not verifiable as of September 4, 2026. Solana Explorer pages were located for the USX program, but retrieved content did not show a verified-source status; token-mint explorer verification is likewise Not verifiable as of September 4, 2026.
Fork lineage. No evidence was found that Solstice’s protocol programs are a fork of a named upstream protocol. The public Solstice GitHub organization exposes metadata/integration repositories and unrelated infrastructure forks, not the core USX/YieldVault source; upstream diff, modifications, and audit coverage of any fork are Not verifiable as of September 4, 2026. Officially listed Halborn audits cover Solstice programs, but do not establish fork lineage.
Malicious modifications in comparable Solstice forks: Not verifiable as of September 4, 2026.