{"block":{"chainId":10,"hash":"0xa3d71a1f59af520d537aa15e830a03f1e21d248e6de3507f81aab0c68c504d97","number":"135229411","timestamp":1746057599},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000abf0522c1092","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":"0xcb109c24c8cebdabd0a788186ca86d254219743463a644c5e6cb45ff8a8a7062","id":"rcpt_cb109c24c8cebdabd0a7","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 135229411 --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\":\"0xa3d71a1f59af520d537aa15e830a03f1e21d248e6de3507f81aab0c68c504d97\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:20:42.557Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x1ec220476c2a14a59eb298aea29b04d4176b1d5b083682023caf6f5d55510958"},"subject":{"label":"USDC totalSupply on OP Mainnet, 2025-04-30 UTC close","unit":"raw","value":"189048659120274"},"v":1}