USX 백서 전문

protocol direction, runs governance processes, and hosts the Risk Committee that reviews audits and approves deployments. Equinox Strategies Ltd BVI-licensed Approved Manager. Operates Equinox Fund, which backs eUSX, and handles portfolio management for the on-chain yield tokens, including custody at qualiﬁed venues and segregated account ﬂows. Issuance vehicles Purpose-built issuers — USX Ltd, SLX Ltd, and prefUSX Ltd — mint and redeem their respective on-chain tokens. Each is ring-fenced to a single asset to keep liability and accounting clean. SOLSTICE.FINANCE 08 ●03 · ARCHITECTURE 3.2 · YIELDVAULT · 3.3 · PROOF OF SOLVENCY · 3.4 · AUDIT 3.2 · YIELDVAULT AS PRIMITIVE A common wrapper, applied many times. YieldVault is the primitive that turns a licensed off-chain strategy into a composable on-chain token. The spec deﬁnes how capital enters, how performance is reﬂected, how redemption clears, and how the strategy manager is accounted for. Every yield-bearing Solstice token (eUSX, strcUSX, and future vaults) sits within YieldVault, so liquidity venues, lending markets, and wallets integrate easily across all of our tokens. FIGURE 3.2 — CAPITAL FLOW THROUGH A YIELDVAULT USX Settlement asset YieldVault Mint · NAV · Redeem CAPACITY · CAPS · PAUSE PRIMITIVE Off-chain Strategy Licensed manager Vault token eUSX · strcUSX REDEMPTION · BURN VAULT TOKEN · RECEIVE USX + ACCRUED YIELD Each strategy sits inside its own vault with capacity managed at the vault level. The protocol can add new strategies, run them side by side, and report their performance to users without creating systemic dependencies between them. 3.3 · ACCOUNTABLE PROOF OF SOLVENCY Reserves you can verify. USX is overcollateralized and backed by a diversiﬁed reserve: audited dollar reserves, tokenized Treasuries, and delta-neutral hedged positions across major digital assets. Reserve composition is published on the Solstice Proof of Solvency dashboards, updated continuously, and independently veriﬁable. Off-chain reserves sit at regulated custodians under segregated account structures. The same dashboards report liabilities alongside reserves, so coverage ratio and its composition are visible without relying on periodic attestations alone. 3.4 · AUDIT AND SECURITY Independent, on cadence. Smart contracts supporting USX, the YieldVault framework, and staked-asset accounts are audited by independent ﬁrms including Halborn and Sep2. Strategy-speciﬁc contracts, including those backing forthcoming Nexus credit markets and future vaults, follow the same cadence. Risk parameters are reviewed by the Foundation's Risk Committee before each deployment, and again at regular intervals once live. SOLSTICE.FINANCE 09 ●SECTION 04 PRODUCT STACK SECTION 04 04. Product stack. Three on-chain primitives are live or in active development: USX, eUSX, and strcUSX. All sit inside the shared YieldVault framework. aiUSX and tbUSX extend the shelf as forward-looking primitives. USX eUSX strcUSX aiUSX 2026 tbUSX 2026 4.1 · USX USX — the settlement asset. USX is the overcollateralized settlement layer at the base of the Solstice ecosystem. Every protocol action routes through it. Depositing into a yield vault mints against USX. Redemption clears back to USX. Payments inside Nexus settle in USX. It's the single entry point to the protocol and the single exit point back out. USX is backed by a diversiﬁed reserve: audited dollar reserves, tokenized Treasuries, and delta-neutral hedged positions in major digital assets. Composition is reported continuously through the Accountable Proof of Solvency framework described in §3.3. Beyond settlement, USX works as an on-chain settlement layer. It's accepted as collateral on Solana lending venues, trades as a quote asset on DEX liquidity, and settles payments through Nexus. Inside YaaS integrations, USX is the common denominator that lets third-party applications distribute yield without building crypto infrastructure of their own. TYPE Overcollateralized settlement asset NETWORK Solana — native RESERVE Audited cash · tokenized Treasuries · delta-neutral hedged crypto CUSTODY Regulated custodians, segregated account structures REPORTING Accountable Proof of Solvency dashboards (continuous) ROLE Mint & redeem reference for every YieldVault SOLSTICE.FINANCE 10 ●04 · PRODUCT STACK 4.2 · EUSX 4.2 · EUSX eUSX — delta-neutral yield. eUSX is the protocol's ﬂagship yield product. A user deposits USX into the eUSX vault, and that capital is deployed into the delta-neutral strategy run by Equinox Strategies Ltd. The strategy captures perpetual-futures funding through fully hedged positions and targets returns that don't track the direction of the underlying assets. STRATEGY Delta- neutral Funding capture across major perpetual-futures venues. Fully hedged spot & perp. MANAGER Equinox BVI-licensed Approved Manager operating Equinox Fund I. WRAPPER YieldVault Mint with USX, hold to accrue, redeem to USX + yield. Structural details for institutional readers. TOPIC DETAIL Custody & segregation The strategy runs inside a regulated fund (Equinox Fund I), with custody at qualiﬁed venues and segregated account ﬂows. Wrapper mechanics eUSX is a yield-bearing token whose value tracks Equinox Fund performance. Redemption burns eUSX and returns USX plus accrued yield, subject to redemption queue and capacity controls. Track record Equinox Fund has operated the underlying strategy across multiple years of live trading. Performance is published on Solstice reporting dashboards and refreshed on a regulated cadence. Any ﬁgure shared with partners or allocators reﬂects current fund status. Composability eUSX composes across the rest of DeFi. It's accepted as collateral in Solana lending markets, trades on DEX venues, and plugs into structured products that decompose its principal and yield components for secondary distribution. A yield-bearing dollar position whose return doesn't track the direction of the underlying assets, wrapped in a token that composes across the network. SOLSTICE.FINANCE 11 ●04 · PRODUCT STACK 4.3 · STRCUSX 4.3 · STRCUSX strcUSX — tokenized institutional credit. strcUSX gives on-chain holders exposure to Strategy Inc.'s STRC preferred shares, a Nasdaq- listed ﬁxed-income instrument issued by the company holding the largest corporate Bitcoin treasury in the world. It's the ﬁrst such instrument tokenized on Solana. How the wrapper works The wrapper works the same way eUSX does. A user mints strcUSX by depositing USX. The capital behind the vault holds a basket of STRC exposure through an institutional custody structure. The token accrues yield across the STRC exposure. Redemption burns strcUSX and returns USX plus accrued yield. What makes it structurally distinct What makes strcUSX structurally distinct is the yield source. Delta-neutral returns depend on funding markets across crypto venues. Preferred-share dividends depend on Strategy Inc.'s corporate cash ﬂows and capital structure decisions. The two are uncorrelated, so holders can pair eUSX and strcUSX as diversiﬁers rather than substitutes. aiUSX and tbUSX add two more uncorrelated drivers when they launch. Both products share the same YieldVault plumbing and the same USX entry and exit asset. Inside the protocol they compose the same way. UNDERLYING STRC preferred shares (Strategy Inc., Nasdaq-listed) YIELD SOURCE Preferred-share dividends, uncorrelated to crypto funding WRAPPER YieldVault. Mint with USX, redeem to USX + yield CUSTODY Institutional custody structure for STRC basket FIRST OF First STRC-linked instrument tokenized on Solana Two yield engines, one settlement asset. eUSX and strcUSX work as diversifiers across the same base. EUSX Funding-driven Returns track perpetual-futures funding markets across crypto venues. STRCUSX Dividend- driven Returns track Strategy Inc. preferred-share distributions and capital structure. TOGETHER Uncorrelated Pair them inside the same wallet. All vault tokens settle into USX on the way in and out — aiUSX and tbUSX extend the set of uncorrelated drivers. SOLSTICE.FINANCE 12 ●04 · PRODUCT STACK 4.4 · YIELDVAULT · 4.5 · FUTURE VAULTS 4.4 · YIELDVAULT An extensible strategy wrapper. YieldVault is the general version of the wrapper pattern that sits behind eUSX and strcUSX. It deﬁnes a common contract surface that every Solstice yield token inherits: distribution, composability, and reserve transparency, all from the same primitive. Common contract surface SURFACE SPECIFICATION Mint & redeem Both ﬂows denominated in USX. Single entry, single exit per vault token. Strategy accounting NAV calculation, performance attribution, fee routing. All handled at the vault level. Risk segmentation Capacity caps, capital controls, pause and restrict triggers per vault. Reporting Reserve and performance dashboards published continuously per vault. From a user's point of view, any Solstice vault token behaves the same way: mint with USX, hold the token to earn yield, redeem back to USX. Standardization is what lets Solstice scale. It extends from two live strategies to a shelf of institutional-grade yield sources without renegotiating wallet, DEX, lending, or payment integrations each time. 4.5 · FUTURE VAULTS Two named, more on the shelf. Two forward-looking primitives extend the YieldVault shelf into yield sources uncorrelated with the strategies already live. Both are in active design and remain subject to product, custody, and regulatory readiness. Detailed speciﬁcations will follow as each approaches launch. FORWARD-LOOKING · 2026 aiUSX On-chain exposure to AI infrastructure ﬁnancing through institutional partners: compute, inference, and training capacity credit. Yield drivers are uncorrelated to crypto funding and corporate ﬁxed-income distributions. FORWARD-LOOKING · 2026 tbUSX Programmable exposure to sovereign-rate and treasury infrastructure, engineered to live inside DeFi venues from day one. Composable as collateral, as a quote asset, and as a base layer for structured products. Beyond these two, additional vaults are in active design: higher-grade credit exposures, tokenized real-world assets, and third-party strategies onboarded into the standard YieldVault contract surface. Each follows the same framework. A licensed manager runs the off-chain portfolio, and Solstice standardizes the on-chain token, the reserve transparency, and the distribution path. SOLSTICE.FINANCE 13 ●SECTION 05 SOLSTICE NEXUS SECTION 05 05. Solstice Nexus. Nexus is Solstice's consumer application: yield, credit, payments, and AI-driven optimization in a single mobile-ﬁrst app. Section 4 describes the underlying assets. Nexus is where most users touch them. It rolls out in four phases. Each builds on the last. Each adds a new category of functionality and another reason to hold stSLX, the staked-SLX access key. Phase numbering reﬂects rollout sequence, not strict dependency. Subsequent pages of this section detail each phase, its mechanics, and its relationship to staked SLX. PHASE 01 Yield Optimiser In development Deterministic rate engine across audited Solana DeFi venues. Risk tiers (Safe / Balanced / Max Yield) and atomic deployment. PHASE 02 AI Copilot Planned Watches positions, ﬂags drift, surfaces idle capital, proposes cross-product moves. Every action explainable. PHASE 03 Credit & Yield Card In development Borrow against USX- denominated assets. Spend via Apple Pay or Google Pay through a regulated card-issuing partner. PHASE 04 Progressive Autonomy Planned Tiered autonomy across Guided, Smart, and Autonomous, gated by stSLX locks and user- deﬁned guardrails. SOLSTICE.FINANCE 14 ●05 · NEXUS 5.1 · OPTIMISER · 5.2 · COPILOT 5.1 · PHASE 1 — IN DEVELOPMENT Yield Optimiser. Phase 1 is a deterministic rate engine. A user picks a risk tier (Safe, Balanced, or Max Yield) and Nexus allocates across a basket of audited Solana DeFi venues. The optimiser evaluates pools continuously, shows an allocation with an expected yield and an explicit breakdown, and runs the full multi-step deployment in a single atomic transaction. Yield comes from Solstice-native products (eUSX, strcUSX, future vaults) and from integrated external protocols. When rates change, Nexus proposes a rebalance rather than moving funds silently. INPUTS User-selected risk tier · live pool data · Solstice yield products OUTPUT Allocation with expected yield, breakdown, and atomic deploy REBALANCE User-approved. Never silent. POSITION Entry point to Nexus and the ﬁrst lift over a passive dollar position 5.2 · PHASE 2 — PLANNED AI Copilot. Phase 2 layers an AI copilot on top of the optimiser. The copilot watches positions continuously and surfaces things worth acting on. ALERT Yield drift When a position's return falls out of its expected band, the copilot proposes an alternative. DETECTION Idle capital Dollar balances sitting in a wallet without exposure are ﬂagged with a one-tap path to an appropriate vault. SUGGESTION Cross-product Opportunities that combine products. For example, staking SLX unlocking a feature the user would beneﬁt from. A uniﬁed Earn interface sits underneath the copilot. Users see eUSX, strcUSX, and any additional vaults side by side, with risk segmentation and AI-guided defaults. Every copilot action is explainable: the user sees the current position, the proposed change, the reason, and the downstream economics before approving. Watches positions. Flags drift. Surfaces idle capital. Always proposes, never executes silently. SOLSTICE.FINANCE 15 ●05 · NEXUS 5.3 · CREDIT · 5.4 · AUTONOMY 5.3 · PHASE 3 — IN DEVELOPMENT Credit market & Yield Card. Credit market Borrow against USX-denominated assets (USX, eUSX, strcUSX) without selling the underlying. Borrowing capacity is calibrated against Solstice's reserve visibility, and locked stSLX scales the amount a user can access. Because Solstice controls minting, reserves, and proof of solvency end to end, in-house lending runs on a tighter credit framework and passes better terms through to users. Yield Card Issued by a regulated card-issuing partner (to be announced) under a major card network, within the partner's regulatory perimeter. Users will be able to spend via Apple Pay or Google Pay, with transactions settling through USX conversion or a collateralized credit route, subject to user preference and partner compliance. Availability will be limited to jurisdictions the partner supports. 5.4 · PHASE 4 — PLANNED Progressive Autonomy. Phase 4 introduces tiered autonomy. Users opt into a level that matches their preference and their staked SLX position. TIER I Guided Default mode. The copilot proposes. The user conﬁrms each action. DEFAULT · NO STAKE REQUIRED TIER II Smart The copilot executes inside pre- approved guardrails deﬁned by the user: max leverage, protocol whitelist, loss threshold, rebalance cadence. stSLX REQUIRED TIER III Autonomous User-conﬁgured automation rules, including leveraged strategies and cross-protocol rotations, execute within user- deﬁned guardrails. stSLX LOCK · HIGHEST TIER Important. Automation is user-conﬁgured rule execution, not discretionary management by Solstice. Users retain ownership and control of assets at all times. Solstice does not provide investment advice and is not a ﬁduciary. Higher autonomy tiers are gated by stSLX locks. Sophisticated users get a clear path to delegated execution, with the most advanced tier tied to a meaningful protocol position. Each tier has its own risk framework, its own audit scope, and a path back to a more conservative tier if the user chooses. Progressive Autonomy is forward-looking and remains subject to technology, regulatory, and governance readiness checks. SOLSTICE.FINANCE 16 ●SECTION 06 YIELD-AS-A-SERVICE SECTION 06 06. Yield-as-a- Service. Yield-as-a-Service (YaaS) is Solstice's B2B distribution layer. It lets ﬁntechs, neobanks, payroll platforms, and corporate treasuries embed Solstice yield into their existing products without building or maintaining crypto infrastructure of their own. YaaS runs in two directions. OUTBOUND Solstice yield → partner platforms A partner integrates once and offers Solstice yield on dollar balances their users already hold. INBOUND External strategies → YieldVault tokens External yield strategies can be wrapped into YieldVault tokens and distributed through Solstice's Solana-native rails. A licensed strategy that onboards through YaaS reaches the Solana ecosystem, composable lending markets, and Solstice's consumer application without building distribution from scratch. Every YaaS integration flows through USX as the base asset. That routing deepens USX liquidity, expands distribution, and gives partners a single economic token to integrate against. Partner platforms that stake SLX at the institutional tier unlock direct minting and redemption access and priority integration onboarding, in place of standard integration fees. Payroll providers can offer yield on accrued but undisbursed wages. Neobanks can present a yield-bearing dollar balance next to the regular deposit account. Card issuers can earn yield on the ﬂoat between authorization and settlement. SOLSTICE.FINANCE 17 ●SECTION 07 SLX UTILITY & ACCESS SECTION 07 07. SLX utility & access. SLX is the native token of Solstice Finance, trading on major exchanges as the foundational asset of the ecosystem. Staking and stSLX. Staking SLX mints stSLX, the liquid staking token that acts as the access key to protocol features. stSLX works across the protocol. It can be locked for deeper access, held liquid for ordinary protocol use, or combined with other Solstice positions inside Nexus. As the product stack grows, so does SLX utility: every new vault, every new Nexus phase, and every new YaaS integration is built to carry an SLX access or priority component. What SLX is not. On its own, SLX does not represent equity, debt, or ownership. Holding SLX does not entitle the holder to dividends, proﬁts, or any guaranteed ﬁnancial return. Value derives from utility within the Solstice system, which activates through staking. stSLX unlocks. Staking is the access key. The deeper the lock, the deeper the access across vaults, credit, autonomy, and governance. Priority vault entry when new YieldVault capacity opens. Instant redemption of eUSX and other yield tokens, available to all users with stSLX as an alternative to standard unlock fees. Credit market access inside Nexus, with locked stSLX scaling borrowing capacity. Higher autonomy tiers inside Nexus Progressive Autonomy. Governance weight on protocol parameters, as the governance framework activates. SOLSTICE.FINANCE 18 ●SECTION 08 GOVERNANCE SECTION 08 08. Governance. Solstice governance is operational. Its job is protocol health, risk conﬁguration, and resource direction. It does not distribute ﬁnancial entitlements, and staked SLX confers no right to fees, proﬁts, or other economic distributions. Governance activates in phases. Early protocol operation is centralized around the Solstice Foundation's Risk Committee, which sets initial parameters, reviews audits, and approves deployments. As the system matures, staked SLX holders are expected to take on a widening share of parameter decisions, ﬁrst through signaling and then through binding votes, under the Foundation's stewardship. 8.1 · PROTOCOL-WIDE GOVERNANCE Parameters governed at the protocol level. CATEGORY PARAMETERS INFLUENCED Ecosystem Development Direction of protocol resources toward grants, integrations, and infrastructure. Resource Cadence Cadence, sizing, and execution of resource deployment. Access Thresholds Baseline locked stSLX requirements across products. Treasury Deployment Use of treasury-controlled reserves. Operational governance first. Binding token votes second — once the protocol's risk surface is mature enough to be governed safely by token holders alone. ACTIVATION CADENCE Today — Risk Committee operates parameters. Community signaling on selected proposals. Phase 2 —