{"block":{"chainId":10,"hash":"0x9239c33fae58c6de228764051f6efc0b253a9b687e8c49ec38435d2ed6a8f54b","number":"156311011","timestamp":1788220799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000009b7d457e292f","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":"0x56bb694801f9bb14786c9f99e386c5c310bae07703031e28586f9d52eb653eac","id":"rcpt_56bb694801f9bb14786c","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 156311011 --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\":\"0x9239c33fae58c6de228764051f6efc0b253a9b687e8c49ec38435d2ed6a8f54b\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:21:43.655Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x07dc10e622eb11b95ebb732b5224a2aa96b89f6f7d10bb363a942fed2aadcc0f"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2026-08-31 UTC close","unit":"raw","value":"170962339113263"},"v":1}