What a Reserve Attestation Does and Does Not Prove

Two words that are not interchangeable

The reports issuers publish are usually attestations, sometimes examination reports. Both are formal accounting engagements, and both are narrower than an audit.

• An audit expresses an opinion on whether financial statements are fairly presented, and it examines the systems and controls that produced them.
• An attestation reports on specified information as of a specified date. The firm states what it found, within a scope it defines in the document.

Neither is a compliment or a criticism. They are different instruments, and the practical consequences of the difference are what matter to anyone reading the report.

What an attestation does establish

Within its stated scope, an attestation can establish useful things:

• That a defined set of assets existed in specified accounts at a stated date.
• What those assets were, at the level of detail the report provides.
• The total the issuer reported as liabilities at that same moment.

That is not nothing. It is a dated, externally examined statement, and it is more than an issuer’s unaudited claim.

What it does not establish

Here is where the headline claim and the document diverge. A typical attestation does not tell you:

Anything about a different date. The report describes one point in time. Reserves change with issuance, redemption and market movements, so nothing in the document constrains what the composition was a week before or after.

Anything about the issuer’s controls. An attestation on balances is not an opinion on custody arrangements, key management, internal approval processes or who can move the assets.

Anything about the quality or liquidity of the assets beyond the report’s categorisation. A treasury bill maturing next week and one maturing in six months may both appear as government securities. The report’s categories are the report’s categories.

Anything about redemption rights. The ability to redeem at par is a contractual term, governed by the issuer’s terms of service, not by the reserve composition. A fully reserved stablecoin with redemption gates is a different proposition from a partially reserved one with open redemption, and the attestation addresses neither.

Anything about legal claims on the reserves. Whether assets are bankruptcy-remote, who the custodian is, and what happens to holders in an insolvency are legal questions that a balance attestation does not answer.

Anything about regulatory oversight. The engagement is between the issuer and the accounting firm. It is not a supervisory review.

A reading method that takes ten minutes

When you open a report, work through these in order:

1. What kind of engagement is it? Look for the word attestation or examination, and for a statement of what the firm is expressing an opinion on.
2. What is the as-of date? Write it down. Everything in the document is qualified by it.
3. What is the scope? Who engaged the firm, what was examined, and — importantly — what was excluded.
4. How are the assets categorised? Note the level of detail: broad categories tell you less than a named list of custodians and instruments.
5. Does the report state liabilities too, or only assets? A reserve figure without a matching liability figure is only half of the equation.
6. How often is it published? Frequency is a policy choice by the issuer and is visible on its transparency page.

The questions the document leaves unanswered are the useful output of the exercise. They are also the reason an attestation should be one input into a decision rather than the whole of it.

Where to read the primary documents

We link to issuers’ own transparency pages rather than summarising their figures, because the issuer’s published disclosure is the authoritative record and our restatement of it would be a worse source than the original. Two examples of where these are published:

• Tether publishes its transparency material at tether.to/en/transparency.
• Circle publishes its transparency and disclosure material at circle.com/transparency.

Both are maintained by the issuers themselves. What you find there, and how current it is, is something to check directly rather than to take from any summary — ours included.

Risk note. This article explains what a reserve report does and does not establish. It is not a judgement about any issuer, and it is not a recommendation to hold or avoid any token. A reserve disclosure is one document among several that describe a stablecoin, and a clean report is not a promise that the token will be redeemable at one dollar when you come to redeem it, that the assets behind it will hold their value, or that the issuer’s terms will not change. Nothing here is financial advice.