ETH: USDC on Ethereum - Issuer-Reported and On Our Node

Ethereum USDC on Ethereum: Issuer-Reported and On Our Node: daily data through 8 Nov 2026.

Circle's own figure for USDC on Ethereum beside the USDC contract's total supply read on our own Ethereum node in the same run, and that supply less what Circle reports as burned on the secondary market on Ethereum.

Why use it. A check of the issuer's figure against the chain itself. How to read it. Circle's figure sits below the contract's total supply by the amount Circle reports as burned on the secondary market on Ethereum (4,484,490.55 USDC on 7 November 2026), so the third line lies on Circle's. What is left between them is the USDC minted or burned in the seconds or minutes between Circle's update and our node's block. On our first readings it was 1,756 USDC over 47 seconds; EURC's Ethereum figure matched its contract to the last decimal.

Calculation. Our node: the USDC contract's totalSupply() at our node's latest block in each run, which can lag the chain by a few minutes. Issuer-reported: Circle's own figures from its public stablecoin endpoint, read by CryptoKeyhole every 10 minutes since 7 November 2026, each network's amount as Circle states it with its update time. Only the Ethereum figure can be checked on our own node; the other networks' amounts are Circle's. An hour takes the last reading inside it and a day its last reading; the latest day is a partial that updates every 10 minutes. History begins with our first reading: earlier figures are not reconstructed.