{"block":{"chainId":10,"hash":"0xd3b578d7e1a455afefb0e4c85f6ca72a47b4657d6b318411303092cca29f02d9","number":"137864611","timestamp":1751327999},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x000000000000000000000000000000000000000000000000000030424e2c26f5","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":"0xa14f40c27e9ac011098abada6ee5a9cbef4b3a1045fc07e3d3cd8c9a69c328c4","id":"rcpt_a14f40c27e9ac011098a","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 137864611 --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\":\"0xd3b578d7e1a455afefb0e4c85f6ca72a47b4657d6b318411303092cca29f02d9\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:24:55.980Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xe19e088d2141759d0ebcea2a6889e00f66261fca7e5364a53d41ec3e28b7f903"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-06-30 UTC close","unit":"raw","value":"53061337491189"},"v":1}