{"block":{"chainId":10,"hash":"0x5e9b5ebc8943461a999ea2fca500a34f52454ba4a75a203db531b084103955ab","number":"77846963","timestamp":1677628799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000000007f644e0","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":"0xe60f635dcc2f72431667cc708c2ba48f243f408b436ecd2acae767ddeb77be4c","id":"rcpt_e60f635dcc2f72431667","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 77846963 --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\":\"0x5e9b5ebc8943461a999ea2fca500a34f52454ba4a75a203db531b084103955ab\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:21:48.032Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xefeb845303ed4afafd482ed2089bc393ac8562ece3f74751b0398807d18f75a0"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2023-02-28 UTC close","unit":"raw","value":"133580000"},"v":1}