{"block":{"chainId":10,"hash":"0xb246bc7d23c2a9016b8af6b3d1531bb35ede485841b636fe04bd99a7b6681099","number":"143178211","timestamp":1761955199},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000001fbd22647621","specId":"erc20.totalSupply","to":"0x7f5c764cbc14f9669b88837ca1490cca17c31607"},"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":"0x9304fd4ade76b279018c03ee7daf6ffe309ae700ac9f7f002aacd17c30859218","id":"rcpt_9304fd4ade76b279018c","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 0x7f5c764cbc14f9669b88837ca1490cca17c31607 \"totalSupply()(uint256)\" --block 143178211 --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\":\"0x7f5c764cbc14f9669b88837ca1490cca17c31607\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xb246bc7d23c2a9016b8af6b3d1531bb35ede485841b636fe04bd99a7b6681099\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:22:35.089Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x28b73df4c04c6a32050d21061d2d77ae5e90161282d356869b72ad8e24cc3ac8"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-10-31 UTC close","unit":"raw","value":"34897186289185"},"v":1}