{"block":{"chainId":10,"hash":"0xa69204b3ca6dc14bc344e16752c83eed2741a8573609640500ae043c99e0a2e9","number":"153632611","timestamp":1782863999},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000008fa07588f98d","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":"0x50731f6be6d1456b29de376985c0874a17596eda32ef9f0012cd073408d58e15","id":"rcpt_50731f6be6d1456b29de","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 153632611 --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\":\"0xa69204b3ca6dc14bc344e16752c83eed2741a8573609640500ae043c99e0a2e9\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:23:31.317Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x8de84a498f9f60243fc7aa3b7bccf3dfb6cbaf828bb0f4f3af4bc29c11e648cd"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2026-06-30 UTC close","unit":"raw","value":"157919329450381"},"v":1}