A reserve report can help establish that specified assets existed under defined conditions at a particular time. It does not automatically establish that a crypto business can meet all obligations or that every customer can withdraw.
The useful question is not whether a report has a reassuring label. It is what was checked, what was excluded and what conclusion the evidence supports.
Read the scope before the total
A report may cover selected assets, selected accounts or a particular population of customer balances. It may use procedures agreed with the business being examined.
Find the date, the entities covered, the asset types and the method. A large number is difficult to interpret without knowing which obligations it is supposed to support.
Also distinguish a live dashboard from an independent report. A dashboard can be useful for visibility, but the source and validation of its inputs matter.
Assets are only one side of the question
A business can hold substantial assets and also owe substantial amounts. To assess whether assets meet obligations, you need a reliable view of both.
In its March 2023 investor advisory, the PCAOB’s Office of the Investor Advocate warns that proof-of-reserve procedures may not address liabilities, holder rights or whether assets were borrowed. The advisory expresses staff views and is not a Board rule.
Those omissions change what a reader can infer. Evidence of control over an address does not, by itself, establish unencumbered ownership of everything at that address.
A snapshot does not establish future availability
Assets can move after the measurement date. They can be lent, pledged or otherwise become unavailable under arrangements the snapshot does not reveal.
The shorter the time between a report and your decision, the fresher the observation may be, but freshness does not expand the report’s scope. A current narrow report is still narrow.
Ask whether the process is periodic, continuous or tied to a one-time event. Then inspect what happens between observations rather than assuming the latest result applies indefinitely.
Customer inclusion checks have a limited purpose
Some reserve systems let a customer verify that a representation of their balance appears in a published dataset. That can answer an inclusion question for that record.
It does not independently prove that every liability was included, that the assets are free of claims or that the business has effective controls. Those are separate assertions requiring separate evidence.
Do not enter private keys or recovery phrases into a verification tool. A legitimate reserve-inclusion check should not need control over your self-custody wallet.
An audit label needs precision
A financial-statement audit, an attestation and an agreed-upon-procedures engagement have different purposes and reporting forms. The name of a well-known firm does not make those engagements interchangeable.
Read the practitioner’s actual conclusion and any limitations. A company’s promotional summary may be shorter and more confident than the report it links to.
The PCAOB staff advisory specifically cautions against equating proof-of-reserve reports with audits conducted under PCAOB standards. That distinction concerns the engagement, not merely whether the provider is an accounting firm.
Use the report as one piece of evidence
For a custody service, reserve information belongs alongside withdrawal terms, the account agreement, operational access and the identity of the organization holding assets.
For a stablecoin, also examine the issuer’s redemption process and backing structure. Our stablecoin peg explainer describes why market price and access can diverge from a stated target value.
A careful reading can still make a reserve report useful. It helps you know which questions have evidence behind them and which remain unanswered.
