{"block":{"chainId":10,"hash":"0xfa57f63d4ce78f2a955fa297fe47a3a1d8c797e7cf0639db7e9251e06ce6eaf6","number":"141839011","timestamp":1759276799},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000ce296a827966","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":"0x61ee87cd83db28d6b934d1da7822a39b9e5f23864367ac8f70c57923c32dd99a","id":"rcpt_61ee87cd83db28d6b934","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 141839011 --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\":\"0xfa57f63d4ce78f2a955fa297fe47a3a1d8c797e7cf0639db7e9251e06ce6eaf6\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:21:36.476Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xd527c9b18d769936318f2957020a23234598158f0b01f57a8866c1ac2c0edd25"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-09-30 UTC close","unit":"raw","value":"226677275916646"},"v":1}