# Source tier

ReserveBeat's label for how each rendered figure was obtained, shown as a chip beside it. ISSUER_ATTESTED (ISSUER-ATTESTED): from the issuer's published report. Measured on-chain by ReserveBeat: STORAGE_PROVEN (STORAGE-PROVEN), read from contract storage with a locally verified proof, and ETH_CALL (QUORUM ETH-CALL), a quorum-agreed contract call for which no storage proof is claimed.

## Sources

- [ReserveBeat measurement methodology](https://reservebeat.com/methodology)

## Disclaimer

ReserveBeat renders figures from issuer-published reports and public blockchains, verbatim and at their stated scope. It is not an auditor, makes no attestation, and states no opinion on any issuer's solvency. Nothing here is investment, trading, legal, tax, or accounting advice. No figure published here is a recommendation to hold, buy, sell, or redeem any token.

Tracked tokens are subjects of public data: supply figures are read from their public Ethereum contracts, and composition figures from the issuers' own published attestation reports. No tracked issuer is a customer and none has endorsed this site.

Source: https://reservebeat.com/learn/source-tier