{"block":{"chainId":42161,"hash":"0xe6125ebee621d2f8e188f05164b08c330d6d88d87f1eb1dd41ff9c1e5d104f80","number":"447736930","timestamp":1775001599},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x0000000000000000000000000000000000000000000000000000324998866b8b","specId":"erc20.totalSupply","to":"0xff970a61a04b1ca14834a43f5de4533ebddb5cc8"},"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":"0x83ba7ea70c278ec3fe077ca898ca491a7d4f2d4373712c321ac158cf5702ead2","id":"rcpt_83ba7ea70c278ec3fe07","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 0xff970a61a04b1ca14834a43f5de4533ebddb5cc8 \"totalSupply()(uint256)\" --block 447736930 --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\":\"0xff970a61a04b1ca14834a43f5de4533ebddb5cc8\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xe6125ebee621d2f8e188f05164b08c330d6d88d87f1eb1dd41ff9c1e5d104f80\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:12:25.954Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xdca7fe6e3dd4ef55418e98cfdc4f9ba5549528ad8aef479eec3249f0f14063c6"},"subject":{"label":"USDC totalSupply on Arbitrum One, 2026-03-31 UTC close","unit":"raw","value":"55291672947595"},"v":1}