{"block":{"chainId":42161,"hash":"0xfd7d175334a86faf101293a3d7602100deef991d675577e8a15dae52424b8c32","number":"509864039","timestamp":1790639999},"call":{"args":[],"data":"0x18160ddd","fn":"totalSupply()","result":"0x00000000000000000000000000000000000000000000000000099a3a71fc8208","specId":"erc20.totalSupply","to":"0xaf88d065e77c8cc2239327c5edb3a432268e5831"},"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":"0xe9d83994ff7020de8c4f055b163370e3a54566f3a00eb923340e79fb521ca5dd","id":"rcpt_e9d83994ff7020de8c4f","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 0xaf88d065e77c8cc2239327c5edb3a432268e5831 \"totalSupply()(uint256)\" --block 509864039 --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\":\"0xaf88d065e77c8cc2239327c5edb3a432268e5831\",\"data\":\"0x18160ddd\"},{\"blockHash\":\"0xfd7d175334a86faf101293a3d7602100deef991d675577e8a15dae52424b8c32\",\"requireCanonical\":true}]}'"},"source":{"endpoint":"conduit","fetchedAt":"2026-10-29T15:02:06.525Z","provider":"Archive RPC node (single provider, via Conduit)","responseHash":"0xdabbc63f5192804e9d32b42281ca8a36b613f53f4b905644dceb5e4912757cab"},"subject":{"label":"USDC totalSupply on Arbitrum One, 2026-09-28 UTC close","unit":"raw","value":"2702850601550344"},"v":1}