{"block":{"chainId":10,"hash":"0xa2c01d526f257257cba3b01863121c4fe0795737fd44786e594fe37adab85ca2","number":"157520611","timestamp":1790639999},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000008eaa29b1d57b","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":"0x0ccc14d9a16b81f5185fbb1784c60a63f3db4662fa786bf7e8f7c076f82c7eb0","id":"rcpt_0ccc14d9a16b81f5185f","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 157520611 --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\":\"0xa2c01d526f257257cba3b01863121c4fe0795737fd44786e594fe37adab85ca2\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:21:27.188Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x6496eed87b137854da541a5e5d324e0c4ead1d9ed9f7a0a114baf3ee44757029"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2026-09-28 UTC close","unit":"raw","value":"156861495104891"},"v":1}