Proof of Reserves

Proof of reserves is evidence that the assets backing a token are really there and really match the supply of tokens. For any real-world asset, it answers the question that matters most: are there as many dollars, ounces, or Treasuries held off-chain as there are tokens claiming them on-chain?

It comes in two broad forms. The common one today is an attestation: an independent accounting firm inspects the holdings and signs a report confirming the balance, usually monthly. Circle publishes monthly attestations for the reserves behind USDC; Paxos does the same for its gold and dollar tokens. The stronger, less common form is cryptographic proof of reserves, where holdings are verified on-chain so anyone can check the math without trusting a single auditor.

Proof of reserves matters because the link between a token and its underlying asset is only as good as its verification. Without it, an issuer can mint more tokens than it can back, and holders have no way to know until it fails - the failure mode behind several collapses in crypto's history.

Two limits are worth understanding. An attestation is a snapshot, not a continuous guarantee, and it covers assets but usually not liabilities - knowing the reserves exist does not prove nothing is owed against them. Read what the report actually certifies, who signed it, and how recent it is.

For RWA tokens, recurring proof of reserves from a named third party is a minimum standard, not a bonus feature.

Source: rwa.xyz, as of 2026.