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Record sog_st_fxusd
fxUSD/f(x) Protocol fxUSD
Also recorded as fxUSD, f(x) fxUSD, f(x) Protocol USD
- Lifecycle
- Active
- Issuance
- Protocol-based
- Reference target
- US dollar
- Primary organization
- f(x) ProtocolNo additional recorded relationship
- Launch
- 2024-02-27
- Redemption
- Protocol Based
- Backing
- Crypto-collateralized
- Stabilization
- Hybrid
- Last review
- 2026-06-24
- Evidence
- 9 source records
Reviewed assessment
Identity and current state
This summary reports reviewed facts and uncertainty. It is not a rating or recommendation.f(x) Protocol stablecoin backed by onchain collateral positions and supported by protocol stability mechanisms.
| Name | f(x) Protocol fxUSD |
|---|---|
| Symbol | fxUSD |
| Aliases | fxUSD, f(x) fxUSD, f(x) Protocol USD |
| Asset class | Stablecoin |
| Lifecycle status | Active |
| Issuance status | Protocol-based |
| Canonical record ID | sog_st_fxusd |
| Route slug | fx-protocol-fxusd |
| Record confidence | High |
| Last reviewed | 2026-06-24 |
- Name
- f(x) Protocol fxUSD
- Symbol
- fxUSD
- Aliases
- fxUSD, f(x) fxUSD, f(x) Protocol USD
- Asset class
- Stablecoin
- Lifecycle status
- Active
- Issuance status
- Protocol-based
- Canonical record ID
sog_st_fxusd- Route slug
fx-protocol-fxusd- Record confidence
- High
- Last reviewed
- 2026-06-24
Record coverage
| Section | Entries |
|---|---|
| Organizations | 1 |
| Sources | 9 |
| Reserve reports | 1 |
| Reserve components | 1 |
| Model-history events | 1 |
| Regulatory notes | 0 |
| Deployments | 1 |
| Issuer-control actions | 0 |
| Open questions | 2 |
| Events | 2 |
Primary display is a navigation and summary choice only. It does not replace other organizations or imply sole legal responsibility, operational control, reserve custody, or historical continuity.
- Governance
- Protocol Governed
- Primary display organization
- f(x) Protocol
- Primary display role
- Protocol operator
- Display selection mode
- Deterministic Policy
- Current relationships
- 1
- Ended relationships
- 0
- Unknown relationship state
- 0
- Freeze capability
- 0 recorded yes · 0 recorded no · 1 not recorded
- Blacklist capability
- 0 recorded yes · 0 recorded no · 1 not recorded
- Deployment control-event references
- 2
- Observed issuer-control events
- 0
- Relationship coverage
- 1 recorded relationship
| Organization | Organization category | Regulatory character | Jurisdiction | Role | Display priority | From | Until | Relationship status |
|---|---|---|---|---|---|---|---|---|
| f(x) Protocol | Protocol or software system | Protocol or decentralized system | Decentralized | Protocol operator | Primary display | Not yet recorded | Not yet recorded | Active relationship |
Protocol or software system
Primary displayf(x) Protocol
- Functional role
- Protocol operator
- Relationship status
- Active relationship
- Regulatory character
- Protocol or decentralized system
- Jurisdiction
- Decentralized
- From
- Not recorded
- Until
- Not recorded
Mechanism
How the asset works
Reference, backing, stabilization, exit, valuation, and yield remain separate facts.- Reference target
- US dollar
- Reference kind
- Fiat
- Comparison category
- US dollar
- Target value
- Not yet recorded
- Reference methodology
- fxUSD targets one U.S. dollar through collateralized positions, oracle-priced mint and redemption, and stability-pool mechanisms.
- Public backing model
- Crypto-collateralized
- Canonical backing types
- Crypto Collateral, Stablecoin Collateral
- Reserve component categories
- Crypto Collateral
- Primary stabilization mechanism
- Hybrid
- Recorded model description
- Fully Collateralized Crypto Positions with Stability Pool
- Redemption / exit model
- Protocol Based
- Valuation source
- Public information is incomplete
- Yield / rebase profile
- None recorded
- Classification notes
- Base fxUSD remains separate from fxSAVE and position or receipt products; V1/V2 continuity remains explicit.
Reserve and redemption
Reserve and redemption
Recorded components, disclosures, reports, and redemption conditions remain explicit.Reserve components
- Onchain stETH and WBTC collateral positions with stability-pool supportCrypto Collateral · No aggregate current percentage is asserted.
| Disclosure status | Onchain Protocol Collateral and Contract Disclosures |
|---|---|
| Backing types | Crypto Collateral, Stablecoin Collateral |
| Summary | fxUSD is supported by onchain collateral positions and protocol stability-pool mechanisms. |
| As of | 2026-06-22 |
| Profile confidence | High |
- Disclosure status
- Onchain Protocol Collateral and Contract Disclosures
- Backing types
- Crypto Collateral, Stablecoin Collateral
- Summary
- fxUSD is supported by onchain collateral positions and protocol stability-pool mechanisms.
- As of
- 2026-06-22
- Profile confidence
- High
| Current status | Protocol Based |
|---|---|
| Settlement asset | Supported Collateral or Stability Pool Assets |
| Eligible parties | Users of supported f(x) Protocol routes. |
| Retail access | Protocol Based Subject to Access |
| Institutional access | Protocol Based Subject to Access |
| Minimum amount | Protocol transaction dependent. |
| Fee | Protocol, oracle, pool, and network terms apply. |
| Settlement time | Protocol and liquidity dependent. |
| Regional limits | Interface and network restrictions may apply. |
- Current status
- Protocol Based
- Settlement asset
- Supported Collateral or Stability Pool Assets
- Eligible parties
- Users of supported f(x) Protocol routes.
- Retail access
- Protocol Based Subject to Access
- Institutional access
- Protocol Based Subject to Access
- Minimum amount
- Protocol transaction dependent.
- Fee
- Protocol, oracle, pool, and network terms apply.
- Settlement time
- Protocol and liquidity dependent.
- Regional limits
- Interface and network restrictions may apply.
| Date | Publisher | Type | Assets covered | Record confidence |
|---|---|---|---|---|
| Not yet recorded | f(x) Protocol | Protocol Collateral and Stability Context | Crypto Collateral, Stablecoin Collateral | High |
f(x) Protocol
Not yet recorded- Type
- Protocol Collateral and Stability Context
- Assets covered
- Crypto Collateral, Stablecoin Collateral
- Record confidence
- High
Deployments and legal context
Deployments and legal context
Network state, contract identity, legal notices, and value states remain separate.| Network | Network record state | Standard | Public deployment category | Canonical deployment type | Operational state | Recorded status | Change or proposal state | Canonicality | Canonicality record state | Verification state | Contract identity state | Contract or identifier | Freeze | Blacklist | Control events | Notes |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Ethereum | Specific network recorded | ERC-20 | Protocol-native or protocol-supported deployment | Protocol Native Token | Active | Active | No separate change state recorded | Native deployment | Canonicality recorded | Identifier recorded; verification not recorded | Identifier recorded | 0x085780639CC2cACd35E474e71f4d000e2405d8f6 | Not yet recorded | Not yet recorded | 2 | Continuous Ethereum fxUSD proxy used for the reviewed 2024 public launch boundary and retained through the 2025 V2 proxy upgrade. V1 and V2 component contracts remain distinct even though the base token proxy is continuous. |
| Date | Title | Authority / publisher | Type | Summary |
|---|---|---|---|---|
| No regulatory notes have been added yet. | ||||
No regulatory notes have been added yet.
Evidence
Evidence
Publisher, provenance, supported claims, archive state, reliability, and publication date remain separate.| Source | Publisher | Source category | Provenance | Primary or secondary | Supported claims | Archive | Reliability |
|---|---|---|---|---|---|---|---|
| Core products of f(x) Protocol 2.0 Published Not yet recorded | f(x) Protocol | Official documentation or product page Canonical: Official Documentation | Subject-controlled source | Primary source | Identity, Fxsave Boundary, Position Products, Collateral, Identity and Product Boundaries | Archive index or wildcard | High |
| Key functions of f(x) Protocol Published Not yet recorded | f(x) Protocol | Official documentation or product page Canonical: Official Documentation | Subject-controlled source | Primary source | Mint, Redemption, Oracle Pricing, Collateral Positions, Issuance and Redemption | Archive index or wildcard | High |
| f(x) stability pool Published Not yet recorded | f(x) Protocol | Official documentation or product page Canonical: Official Documentation | Subject-controlled source | Primary source | Stability Pool, fxSAVE, Income Boundary, Peg Support, Stability and Income Boundary | Archive index or wildcard | High |
| f(x) Protocol contracts Published Not yet recorded | f(x) Protocol | Official documentation or product page Canonical: Official Documentation | Subject-controlled source | Primary source | Ethereum Deployment, Fxusd Proxy, Version 1 Contracts, Version 2 Contracts, Current Proxy and Versioned Contracts | Archive index or wildcard | High |
| fxUSD: This ain’t your bank’s stablecoin Published 2024-01-11 | f(x) Protocol | Official statement or announcement Canonical: Official Blog | Subject-controlled source | Primary source | Announcement, Identity, Design, Prelaunch Boundary, Product Announcement Before Launch | Archive index or wildcard | High |
| fxUSD Seeding Event: The Race to 500 ETH! Published 2024-02-23 | f(x) Protocol | Official statement or announcement Canonical: Official Blog | Subject-controlled source | Primary source | Seeding Start, 500 Eth Threshold, Mint Redeem Condition, Launch Boundary, Seeding Phase and Full Live Condition | Archive index or wildcard | High |
| GHO/fxUSD Curve pool creation on Ethereum Published 2024-02-27 | Etherscan | On-chain record or explorer Canonical: Onchain Explorer | Technical primary source | Primary source | Curve Pool Creation, Ethereum, Fxusd Public Liquidity, Launch Date, Onchain Public Availability Boundary | Archive index or wildcard | High |
| What is the difference between f(x) Protocol V1 and V2? Published Not yet recorded | f(x) Protocol | Official documentation or product page Canonical: Official Documentation | Subject-controlled source | Primary source | Version 1, Version 2, Architecture Change, Stablecoin Continuity, V1 V2 Architecture Boundary | Archive index or wildcard | High |
| fxUSD proxy upgrade event on Ethereum Published 2025-01-02 | Etherscan | On-chain record or explorer Canonical: Onchain Explorer | Technical primary source | Primary source | Proxy Upgrade, Same Token Address, V2 Activation, Ethereum, Same Proxy V2 Upgrade | Archive index or wildcard | High |
Known unknowns
Known unknowns and coverage
Missing or disputed facts remain visible instead of being converted into certainty.| Topic | What remains unclear | Value state | Priority | Last checked |
|---|---|---|---|---|
| V1 V2 Component and Rollout History | The continuous fxUSD proxy and its 2025-01-02 upgrade are normalized. The complete V1-to-V2 component-contract replacement graph, staged rollout chronology, pool migration, and treatment of every V1 position product remain incomplete. | Unknown after review | Medium | 2026-06-24 |
| Base Token Income Accrual | Yield is documented in the system, but direct base-token accrual versus wrapper or pool participation remains unresolved. | Unknown after review | High | 2026-06-22 |
V1 V2 Component and Rollout History
The continuous fxUSD proxy and its 2025-01-02 upgrade are normalized. The complete V1-to-V2 component-contract replacement graph, staged rollout chronology, pool migration, and treatment of every V1 position product remain incomplete.
- Value state
- Unknown after review
- Priority
- Medium
- Last checked
- 2026-06-24
Base Token Income Accrual
Yield is documented in the system, but direct base-token accrual versus wrapper or pool participation remains unresolved.
- Value state
- Unknown after review
- Priority
- High
- Last checked
- 2026-06-22
Lifecycle
History
Current classification remains separate from dated changes and incidents.Model and lifecycle changes
| Date | Event | Category | Subtype | Status effect | Recovery |
|---|---|---|---|---|---|
| 2024-02-27 | fxUSD becomes publicly available on Ethereum | Launch and introduction | Launch | Remained active | Not applicable |
| 2025-01-02 | fxUSD proxy is upgraded for f(x) Protocol V2 | Governance and protocol change | Protocol Upgrade | Remained active | Not applicable |
Related records and corrections
Corrections and further reading
Open connected records, methodology, machine-readable data, or report a correction.- All stablecoinsCompare this record with the rest of the archive.
- f(x) ProtocolDecentralized
- Event registry2 connected events recorded.
- MethodologyRead classification, evidence, and value-state rules.
- CorrectionsReport a source, relationship, or record problem.
- Data manifestInspect the machine-readable public layer.