When two stablecoins both describe themselves as fully backed, which documents help you compare the claims without treating a reserve statement as a safety guarantee?
- 01
Identify the document type before quoting its number. A self-reported balance, an accountant's attestation and a company financial audit answer different questions.
- 02
Keep the balance date, report date and research review date separate. Reading an old report today does not create a current reserve observation.
- 03
Reserve composition and access to redemption are separate checks. A plausible backing structure does not establish your ability to redeem at a particular time or cost.
Provider documentation reviewed on 12 September 2026. This guide examines the meaning and limitations of published disclosures, not the latest solvency of the issuers. We did not audit reserves, test redemptions or independently validate the underlying bank and custody records. The comparison method is editorial analysis, not an investment recommendation.
1. Start with the document, not the word transparent
Paxos makes a useful distinction on its PYUSD page: its own portfolio report is not independently reviewed, while a separate accountant's attestation is issued under stated professional standards. Treating both documents as audited reserves erases the difference the issuer itself discloses.
For each document, record who prepared it, what assertion is being examined, the dates it covers and any qualification. An accountant's name alone is not a description of scope. Even products under one brand can use different standards: Paxos identifies Singapore standards for USDG attestations, rather than the AICPA standards described for PYUSD.
| Evidence | Question it can help answer | Do not assume |
|---|---|---|
| Issuer portfolio disclosure | What does management report holding? | An independent accountant examined every figure |
| Accountant attestation | What assertion was examined, on which dates? | The report covers every operational or legal risk |
| Company financial audit | What do the audited financial statements cover? | Its scope is identical to a token reserve report |
| Onchain balances | What is observable at these addresses? | All offchain obligations or custody rights are visible |
Sources: [1] Paxos: PYUSD reports and attestations · [2] Paxos: USDG attestations
- Save the report title and covered assertion beside any extracted number.
- Keep issuer statements separate from independent examination findings.
2. A fresh webpage can contain an older balance
When we checked Ripple's transparency page on 12 September, its displayed balances were dated 3 September 2026. The same page separately described monthly attestations. The page-access date, the balance date and the accountant's reporting period are therefore not interchangeable.
Use separate columns in your research notes. If an issuer balance and a market-data supply estimate disagree, first align their dates and definitions before calling the difference a reserve shortfall. A current access timestamp tells you when a source was retrieved, not when its underlying assets were measured.
| Timestamp | Meaning | Use in a comparison |
|---|---|---|
| Balance or measurement date | When the reported assets or supply were measured | Align the quantities being compared |
| Publication or report date | When the document was issued | Measure reporting delay |
| Research review date | When you checked the source | Track your review process, not asset freshness |
Sources: [3] Ripple: RLUSD transparency
- Do not substitute the crawl date for a missing measurement date.
- Label a value unavailable when its period or measurement basis cannot be established.
3. Read the assets and the exit route separately
Circle describes USDC backing through cash and liquid government-market assets, and separates weekly disclosures from monthly assurance. EURC documentation instead describes euro-denominated reserves and a euro redemption unit. Both the asset composition and the currency matter; adding euro and dollar figures without an exchange-rate convention does not produce a meaningful total.
Then investigate your own exit route. Identify the counterparty, eligibility requirements, minimum amount, applicable charges and settlement window. Do not infer those terms from a reserve ratio or a card's merchant-acceptance footprint. Our comparison method is to mark this route unresolved until its terms are documented, rather than treating a backing statement as an executable redemption quote.
Sources: [4] Circle: USDC transparency · [5] Circle: EURC documentation
- Separate reserve composition from the route available to your account or wallet.
- Keep original currency units visible when displaying historical market figures.
4. Protocol-backed units need a different checklist
Aave's GHO documentation describes multiple facilitators with governance-assigned parameters, including collateral-backed borrowing and a stability module. This is not the same evidence model as a bank account holding fiat reserves. A bank-reserve template would miss the role of facilitator capacity, collateral and protocol controls.
For a protocol-backed unit, map the relevant issuance and exit mechanism before choosing the data to monitor. For a fiat-backed unit, map the issuer, reserve documents and contractual access. Neither checklist proves safety. Its purpose is to expose unanswered questions and stop unlike evidence from being compressed into one reassuring badge.
Sources: [6] Aave: GHO facilitators
- Check the mechanism actually used by the asset or wrapper you hold.
- Record which claims remain issuer-reported, historical or not independently examined.
Primary sources
- [1] Paxos: PYUSD reports and attestations ↗
Distinguishes Paxos's self-reported portfolio document from the independent attestation and identifies the latter's standards and provider.
- [2] Paxos: USDG attestations ↗
Shows that a different product under the same issuer brand can have a different attestation standard and accountant transition date.
- [3] Ripple: RLUSD transparency ↗
Supports the dated page example and the distinction between displayed issuer balances and the separately described monthly attestation process.
- [4] Circle: USDC transparency ↗
Describes the reserve structure and different disclosure and assurance cadences used in the document-reading comparison, not a current solvency conclusion.
- [5] Circle: EURC documentation ↗
Establishes the euro-denominated reserve and redemption unit used to explain why currency definitions matter in market comparisons.
- [6] Aave: GHO facilitators ↗
Explains governance-approved facilitators and their distinct issuance mechanisms; it does not independently measure current collateral or capacity.
This analysis is general information, not legal, investment or trading advice. Source conditions may change after publication.