{"block":{"chainId":10,"hash":"0x1e26a4283c3d54f91d04ad1350ed7f0ad30467253e57c4ca0728117c08819ac4","number":"157607011","timestamp":1790812799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000008f3613923c37","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":"0x26729c56e1f654a3e8e8c40052d7a19723048cac74b8bc120fee6a8eeec647d3","id":"rcpt_26729c56e1f654a3e8e8","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 157607011 --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\":\"0x1e26a4283c3d54f91d04ad1350ed7f0ad30467253e57c4ca0728117c08819ac4\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:24:30.531Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xe3ce618fd6877f1736d470f603cfd1a185917a1a7589d0c526cc3499d0859852"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2026-09-30 UTC close","unit":"raw","value":"157462419356727"},"v":1}