{"block":{"chainId":10,"hash":"0xe4434cd808c3bb7a90aafbdfa981cab847328c405bff790dee576ae4362b7219","number":"139203811","timestamp":1754006399},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000002ca6da94b3ec","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":"0x5632b8b474ea7995a1ccffaf601a8f35cf2a41b19f92e16712cf9c246e445b54","id":"rcpt_5632b8b474ea7995a1cc","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 139203811 --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\":\"0xe4434cd808c3bb7a90aafbdfa981cab847328c405bff790dee576ae4362b7219\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:24:25.481Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x579bc8200680eb2bf364fa166828744c3cec470d49ec3084d7a211cdc5740242"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-07-31 UTC close","unit":"raw","value":"49095143371756"},"v":1}