Reserve evidence monitoring

Proof of reserve

Compare liabilities with observed backing by evidence strength: direct on-chain verification, issuer-published third-party attestation results, or source report only. Reserve and liability assurance are kept separate, and incomparable ratios are withheld.

6 issuers7 productsMonitoring cadence · Every 15 minutes
API checked · 2026-10-14 08:23:46 UTCapi.philidor.io/v1/por

Evidence summary

Coverage first, then evidence location and assurance strength across the monitored universe. No portfolio collateral ratio is inferred.

Observed reserves
$280.16B

Observed subtotal only; 1 issuer reserve total is withheld.

Reserve evidence coverage
-

Share of observed reserve value with current admissible evidence; not a claim of audit independence.

On-chain reserve evidence
-

Reserve value Philidor reproduced from pinned finalized-block state.

On-chain liabilities
-

Withheld because 1 issuer liability total is unavailable.

Reserve evidence composition

Strongest admissible layer per reserve dollar
Portfolio evidence partition withheld: 1 issuer reserve total is unavailable. A partial denominator is not presented as 100% coverage. Review issuer cards below.
Comparable ratios
4 / 6
Oldest evidence
2026-10-08 23:59 UTC

Issuer monitor

Each record keeps freshness, reserve assurance, liability assurance, and ratio scope separate.

Tether

Current

Tether USD

Observed reserves
$189.62B
Observed liabilities
$184.16B
Scope-compatible ratio
102.97%
Reserve evidenceAvailability · location · strength
Evidence coverage
100%
On-chain
0%
Off-chain
100%
Issuer / source reported100%
Evidence coverage measures current evidence availability—not reserve backing, an audit, or a solvency conclusion. On-chain and off-chain describe where evidence can be reproduced.
Observed 2026-10-14 02:51 UTCReview evidence

Circle

Current

USD Coin

Observed reserves
$73.00B
Observed liabilities
$72.69B
Scope-compatible ratio
100.43%
Reserve evidenceAvailability · location · strength
Evidence coverage
100%
On-chain
0%
Off-chain
100%
Issuer / source reported100%
Evidence coverage measures current evidence availability—not reserve backing, an audit, or a solvency conclusion. On-chain and off-chain describe where evidence can be reproduced.
Observed 2026-10-14 05:23 UTCReview evidence
S

Sky

Current

Sky USDS

Observed reserves
$10.17B
Observed liabilities
$11.64B
Scope-compatible ratio
Not comparable
Reserve evidenceAvailability · location · strength
Evidence coverage
100%
On-chain
84.5%
Off-chain
15.5%
On-chain reproduced84.5%
Issuer / source reported15.5%
Evidence gap / mismatch / stale0%
Evidence coverage measures current evidence availability—not reserve backing, an audit, or a solvency conclusion. On-chain and off-chain describe where evidence can be reproduced.

Ratio withheld. Requires complete, scope-comparable observed reserves and supply across every registered product.

Observed 2026-10-14 06:39 UTCReview evidence

Ethena

Current

Ethena USDe

Observed reserves
$4.76B
Observed liabilities
$4.78B
Scope-compatible ratio
99.56%
Reserve evidenceAvailability · location · strength
Evidence coverage
100%
On-chain
0%
Off-chain
100%
Issuer-published attestation100%
Evidence coverage measures current evidence availability—not reserve backing, an audit, or a solvency conclusion. On-chain and off-chain describe where evidence can be reproduced.
Observed 2026-10-14 05:54 UTCReview evidence

Ripple

Current

Ripple USD

Observed reserves
$2.60B
Observed liabilities
$2.46B
Scope-compatible ratio
105.78%
Reserve evidenceAvailability · location · strength
Evidence coverage
100%
On-chain
0%
Off-chain
100%
Issuer / source reported100%
Evidence coverage measures current evidence availability—not reserve backing, an audit, or a solvency conclusion. On-chain and off-chain describe where evidence can be reproduced.
Observed 2026-10-14 06:54 UTCReview evidence

Ondo Finance

Unverified

Ondo US Dollar Yield · Ondo Short-Term US Treasuries Fund

Reserve evidence is 2.3 days old and exceeds this product's freshness limit.

Observed reserves
-
Observed liabilities
-
Scope-compatible ratio
Not comparable
Reserve evidenceAvailability · location · strength
Evidence coverage
0%
On-chain
0%
Off-chain
0%
Evidence gap / mismatch / stale100%
Evidence coverage measures current evidence availability—not reserve backing, an audit, or a solvency conclusion. On-chain and off-chain describe where evidence can be reproduced.

Ratio withheld. Requires complete, scope-comparable observed reserves and supply across every registered product.

Observed 2026-10-14 07:55 UTCReview evidence

How to read this monitor

Current is not verified“Current” describes freshness, not independence. Read the evidence ladder before relying on any figure.

Zero is not unbackedEvidence coverage is the completeness measure. On-chain and off-chain describe observability: 0% on-chain with 100% off-chain evidence is fully covered by current evidence, while its assurance strength remains clearly labelled.

No ratio is deliberatePhilidor divides reserves by liabilities only when scope and timing align, and labels the ratio’s evidence basis.

Methodology

Published coverage basis

Observed figures from Philidor’s stablecoin backing look-through. Reserve value is partitioned by its strongest admissible current evidence layer: direct on-chain verification, issuer-published third-party attestation results, source report only, or unverified. Philidor does not independently fetch the auditor artifacts behind issuer-published attestation results. Liability evidence is measured separately. Shares are mutually exclusive and total 100%; 0% direct on-chain does not mean 0% backing. Reserve and liability timestamps are separate, stale evidence fails closed, and cross-time or cross-scope ratios are withheld. Unobserved fields are null with a reason; nothing is inferred. This is decision evidence, not a solvency guarantee.