{"block":{"chainId":42161,"hash":"0xab426fefdf5b9edf485753cffd4e1c60b8cb73794821728d312c8b781a95cd0e","number":"437025050","timestamp":1772323199},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000003302e7275871","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":"0x84f13f189779814d6b72a5b2163f794e1b7400255455cdbe7cad0a4ffb80945d","id":"rcpt_84f13f189779814d6b72","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 437025050 --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\":\"0xab426fefdf5b9edf485753cffd4e1c60b8cb73794821728d312c8b781a95cd0e\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:04:00.649Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0x77fe6b9c613e59ab3bb0dfb90957b4f041a619fa57fbcc3d605d65fc431b730a"},"subject":{"label":"USDC totalSupply on Arbitrum One, 2026-02-28 UTC close","unit":"raw","value":"56087561066609"},"v":1}