{"block":{"chainId":10,"hash":"0xe271bd93149d1f9e93ae55080253462b4e33b0bc2ceeadf65d5a7283e1d50349","number":"150997411","timestamp":1777593599},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000bc5b616358e3","specId":"erc20.totalSupply","to":"0x0b2c639c533813f4aa9d7837caf62653d097ff85"},"checks":[{"detail":"eth_call totalSupply() at the day's last block, by block number, on one archive RPC provider; responseHash is sha256 of the response text as landed","name":"rpc","status":"pass"},{"detail":"block hash and timestamp from eth_getBlockByNumber at that block number on the same provider","name":"block-header","status":"pass"}],"hash":"0xcd94841375ad42b8fb10a33b45198da5d615673f12d411af8b115a7b08369ace","id":"rcpt_cd94841375ad42b8fb10","kind":"eth_call","lineage":{"inputs":[],"transform":{"expression":"total_supply_raw = uint256(result); total_supply = total_supply_raw / 10^decimals","name":"erc20.totalSupply","version":"1"}},"proofLevel":1,"reproduce":{"cast":"cast call 0x0b2c639c533813f4aa9d7837caf62653d097ff85 \"totalSupply()(uint256)\" --block 150997411 --rpc-url $RPC_URL","curl":"curl -s -X POST \"$RPC_URL\" -H 'content-type: application/json' --data '{\"jsonrpc\":\"2.0\",\"id\":1,\"method\":\"eth_call\",\"params\":[{\"to\":\"0x0b2c639c533813f4aa9d7837caf62653d097ff85\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xe271bd93149d1f9e93ae55080253462b4e33b0bc2ceeadf65d5a7283e1d50349\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:21:41.332Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x1877092a4fc8520c5202baf369470a9f9a11b093576382a4049cec567fd24486"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2026-04-30 UTC close","unit":"raw","value":"207100661946595"},"v":1}