What is Proof of Reserve?
Glossary · Compliance
Proof of reserve (PoR) is an independent, on-chain attestation that a tokenized asset is fully backed by the assets it claims to hold. Chainlink Proof of Reserve is the most widely used: it publishes the verified reserve amount on-chain so anyone can check that a token's backing matches its circulating supply.
How proof of reserve works
An oracle network such as Chainlink reads reserve data from the custodian or fund and publishes it on-chain as a feed. Smart contracts and dashboards can then compare the reported reserves against the token's circulating supply, so any shortfall is visible immediately rather than discovered after the fact. Proof of reserve is consumed in production by tokenized treasuries and stablecoins including BUIDL, BENJI, OUSG, USDC, USDT, and PAXG.
What proof of reserve does and does not prove
PoR replaces a 'trust us' claim with a verifiable, on-chain reserve figure, and for tokenized treasuries and stablecoins it has become a baseline expectation rather than a feature. It attests the reported reserve amount; it does not, on its own, audit the quality of every underlying asset or remove issuer, custody, or smart-contract risk.
Frequently asked questions
Does proof of reserve guarantee a token is safe?
No. Proof of reserve verifies that reserves are reported on-chain and can be checked against supply, but it does not remove issuer, custody, smart-contract, or off-chain risk. It is one transparency signal, not a guarantee.
Related terms
- Tokenized Treasury — A tokenized treasury is a money-market or short-term US Treasury fund issued as a blockchain token that pays yield on-chain.
- Real-World Asset (RWA) — A real-world asset (RWA) in crypto is an off-chain asset — a Treasury bill, equity, fund, bond, commodity, or property — represented as a blockchain token.
- Multi-Oracle Pricing — Multi-oracle pricing values a tokenized asset by comparing several independent price feeds — such as Pyth, Chainlink, the issuer's published NAV, and the on-chain market price — instead of trusting one source.
Informational only · not financial advice. See the live data on the newsroom. · ← All glossary terms