{"recording":true,"recorded_at":"2026-10-20T03:43:25Z","note":"A recording of a real passing verified brief (schema brief-verified/1), shown to illustrate the response shape. The on-chain values were read from two independent RPC node operators at the blocks shown on 2026-10-20 and are not current. A buyer would have been charged $1 for this brief because it met the contract (2 onchain-confirmed claims).","question":"How much USDC is in circulation","answer":"USDC totalSupply() read on-chain: 47,835,740,440 USDC on Ethereum (block 26231180, 2026-10-20T03:42:59Z) and 4,267,723,904 USDC on Base (block 52839227, 2026-10-20T03:43:21Z). Other chains are not included.","status":"pass","fail_reasons":[],"claims":[{"text":"USDC totalSupply() on Ethereum was 47,835,740,440 USDC at block 26231180 (2026-10-20T03:42:59Z).","status":"confirmed","tier":"onchain-confirmed","primary":null,"secondary":null,"match":{"value":"47,835,740,440","unit":"USDC","date":"2026-10-20","topic":"totalSupply()"},"onchain":{"value":"47,835,740,440","unit":"USDC","block":26231180,"chain":"ethereum","nodes":["ethereum.publicnode.com","eth.drpc.org"],"observed_at":"2026-10-20T03:42:59Z"},"evidence":[{"kind":"onchain","chain":"ethereum","block":26231180,"block_timestamp":"2026-10-20T03:42:59Z","method":"totalSupply()","contract":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"47,835,740,440","unit":"USDC","node":"ethereum.publicnode.com","retrieved_at":"2026-10-20T03:43:25.430Z"},{"kind":"onchain","chain":"ethereum","block":26231180,"block_timestamp":"2026-10-20T03:42:59Z","method":"totalSupply()","contract":"0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48","value":"47,835,740,440","unit":"USDC","node":"eth.drpc.org","retrieved_at":"2026-10-20T03:43:25.430Z"}]},{"text":"USDC totalSupply() on Base was 4,267,723,904 USDC at block 52839227 (2026-10-20T03:43:21Z).","status":"confirmed","tier":"onchain-confirmed","primary":null,"secondary":null,"match":{"value":"4,267,723,904","unit":"USDC","date":"2026-10-20","topic":"totalSupply()"},"onchain":{"value":"4,267,723,904","unit":"USDC","block":52839227,"chain":"base","nodes":["base.drpc.org","mainnet.base.org"],"observed_at":"2026-10-20T03:43:21Z"},"evidence":[{"kind":"onchain","chain":"base","block":52839227,"block_timestamp":"2026-10-20T03:43:21Z","method":"totalSupply()","contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","value":"4,267,723,904","unit":"USDC","node":"base.drpc.org","retrieved_at":"2026-10-20T03:43:25.430Z"},{"kind":"onchain","chain":"base","block":52839227,"block_timestamp":"2026-10-20T03:43:21Z","method":"totalSupply()","contract":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","value":"4,267,723,904","unit":"USDC","node":"mainnet.base.org","retrieved_at":"2026-10-20T03:43:25.430Z"}]}],"counts":{"confirmed":2,"consistent":0,"unconfirmed":0},"tiers":{"publisher-confirmed":0,"onchain-confirmed":2,"official":0},"method":"https://horizonpulse.dev/contracts/brief-verified","meta":{"version":"1","schema":"brief-verified/1"},"type":"usdc_supply","answer_by":"template","disclaimer":"Not financial, investment, tax, legal or health advice. Quotes about tokens, securities or other financial products are not a recommendation to buy, sell or hold anything. 'Verified' means each claim was confirmed in two independent sources as defined at /contracts/brief-verified; Horizon Pulse does not check whether the sources themselves are accurate."}