{"block":{"chainId":10,"hash":"0x60ca7d72e22a9481f5c38ad66b3db645dd3e530b5de014066f8c4606672551b2","number":"85261510","timestamp":1680307192},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000014e9172e3f79c","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":"0x84e64f74f7d6e2bccd977a9fae8ad0ff445782bb2c875c608630064abac53ee1","id":"rcpt_84e64f74f7d6e2bccd97","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 85261510 --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\":\"0x60ca7d72e22a9481f5c38ad66b3db645dd3e530b5de014066f8c4606672551b2\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:22:35.336Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x9134feb6cd746990f81db2cd5ddbaf374329979dc4dfc22509cb0b21c6c9e4c4"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2023-03-31 UTC close","unit":"raw","value":"367861581477788"},"v":1}